Formulas
3036 pages in this section.
- 10°/10° Zig-zag Overshoot Check
First and second overshoot angles in a 10°/10° zig-zag manoeuvre per IMO MSC.137(76): first overshoot ≤ 10° for L/V < 10 s, ≤ (5 + L/2V)° otherwise; second overshoot ≤ 25°.
- ABS - ACCU (Unattended machinery)
ABS class notation ACCU - Unattended machinery. Eligibility + survey-scope check.
- ABS - AMS (Automated machinery)
ABS class notation AMS - Automated machinery. Eligibility + survey-scope check.
- ABS - BIO-PROTECT (Anti-fouling)
ABS class notation BIO-PROTECT - Anti-fouling. Eligibility + survey-scope check.
- ABS - CPS (Cyber-physical)
ABS class notation CPS - Cyber-physical. Eligibility + survey-scope check.
- ABS - CSA (Container stress analysis)
ABS class notation CSA - Container stress analysis. Eligibility + survey-scope check.
- ABS - ICE CLASS (ABS Ice)
ABS class notation ICE CLASS - ABS Ice. Eligibility + survey-scope check.
- ABS - NAVI-WATCH (Integrated bridge)
ABS class notation NAVI-WATCH - Integrated bridge. Eligibility + survey-scope check.
- ABS - POT (Port of Refuge)
ABS class notation POT - Port of Refuge. Eligibility + survey-scope check.
- ABS - R1/R2 (Redundancy)
ABS class notation R1/R2 - Redundancy. Eligibility + survey-scope check.
- ABS - RES (Research)
ABS class notation RES - Research. Eligibility + survey-scope check.
- ABS - SFA (Spectral fatigue)
ABS class notation SFA - Spectral fatigue. Eligibility + survey-scope check.
- ABS - SPS (Special purpose)
ABS class notation SPS - Special purpose. Eligibility + survey-scope check.
- ABS - VSA (Vibration)
ABS class notation VSA - Vibration. Eligibility + survey-scope check.
- ABS ENVIRO / ENVIRO+
American Bureau of Shipping environmental class notation.
- ABS ENVIRO+ Extras
Additional optional sub-notations available for ENVIRO+ ships - BWT, EGCS, Low-SOx, ShorePower (SP), UWN.
- ABS LNG Bunker Ready Notation
Vessel-level readiness to receive LNG bunkers alongside - ship-to-ship or terminal transfer.
- ABS SMART Notation
American Bureau of Shipping SMART notation - data-driven condition-based class survey regime.
- Accumulator Sizing (Isothermal)
Gas-charged accumulator volume from usable oil volume and pressure band using the isothermal (n = 1) Boyle's law.
- Adiabatic Flame Temperature
Approximate adiabatic flame temperature from fuel LCV, stoichiometric products and excess air. Bounded by gas dissociation in practice.
- Admiralty Coefficient Power
Quick-look delivered power from displacement, speed and a ship-type Admiralty coefficient.
- Admiralty Constant - Delivered Power
Delivered-power estimate at a new speed using the Admiralty constant derived from trial data - the classical scale-up for preliminary design.
- AER - Annual Efficiency Ratio
Annual CO₂ intensity per deadweight-nautical-mile. Used by the Poseidon Principles (banks) and the IMO operational CII regime.
- AER - Attained vs Required
Attained AER (Annual Efficiency Ratio) vs required benchmark - precursor metric to CII.
- Age Premium - Old Ship Rate Discount
Rate discount for older ship on a given fixture - often 0.5-1 % per year above 15 y.
- AHTS - Bollard Pull Test
AHTS (Anchor Handling / Tug / Supply) bollard pull certification per classification society - static vs dynamic.
- AHTS Fuel & CO₂
Anchor Handling Tug Supply. Outside CII scope - benchmarked on bollard-pull-hour intensity.
- Air Change Rate (ACH)
Ventilation rate in air-changes-per-hour from supply-air flow and room volume.
- Air Lubrication Saving
Net fuel saving from an air-layer or micro-bubble lubrication system, netting out the compressor-power penalty.
- Air Resistance - Above-Water Drag
Air resistance force on above-water superstructure given projected frontal area, drag coefficient, and relative wind speed.
- Air–Fuel Ratio (AFR) & Excess Air
AFR and excess-air factor λ from measured fuel and air flows. Diesel engines typically λ = 2.0–3.5 at full load.
- AIS - Carriage Class A vs B
AIS Class A vs Class B carriage requirement per SOLAS V Reg. 19 - driven by GT, area, and voyage type.
- Alarm Rationalisation - Alarm Rate Check
Average alarm rate per hour per IEC 62682 alarm-management standard - excessive rates indicate need for alarm rationalisation.
- Algeciras (ES) - Port Card
Algeciras, ES - annual throughput ~150,000 TEU, max draft 17 m. Gibraltar strait hub.
- Aliphatic Cargo - Segregation Table
Aliphatic cargo (ethylene dichloride, propylene oxide) segregation from aromatic / heated / oxidiser cargoes.
- Alt Fuel - Bunker Premium
Bunker premium of alternative fuels over VLSFO - methanol, LNG, ammonia, e-fuels.
- Ammonia - Core Properties
Ammonia reference fuel card - NCV, density, CO₂ factor for energy-budget and emission calculations.
- Ammonia - Net Calorific Value
Ammonia net calorific value - relevant for bunker sizing and dual-fuel engine tuning.
- Ammonia Fuel - NOx + N₂O Slip
Estimated NOx + N₂O emissions per kWh for ammonia-fuelled engines - drives well-to-wake GHG footprint.
- Anchor Chain - Horizontal Tension & Sag
Catenary equation for anchor chain - horizontal tension at fairlead given chain weight per metre and water depth.
- Anchor Chain Break Load by Grade
Approximate break load of stud-link anchor chain from diameter and IACS steel grade.
- Anchor Holding Power
Expected holding force H = HC × W, where HC is the holding coefficient by bottom type and W is the anchor weight.
- Anchor Holding Power - Wilson / Stevens
Anchor holding power for common merchant-ship stockless anchors (Wilson coefficient × anchor weight) - basis for assessing single-anchor holding in wind/current.
- Anchor Scope - Chain Length Requirement
Anchor-chain scope (length paid out) recommended for holding at different conditions - conservative rule-of-thumb multiplier on water depth.
- Annex V Polar Code - Garbage Rules
Garbage-discharge restrictions applicable in polar waters per MARPOL Annex V + Polar Code - stricter than general rules.
- Antifouling Paint - Depletion Rate
Antifouling paint depletion over a docking interval - self-polishing copolymer (SPC) loses ~5–15 µm/month depending on speed and trade area.
- Antwerp-Bruges (BE) - Port Card
Antwerp-Bruges, BE - annual throughput ~200,000 TEU, max draft 23 m. Chemical capital EU.
- API ↔ SG Converter
API gravity is the petroleum industry's inverse-SG scale. API = 141.5/SG − 131.5 (both at 60 °F).
- API gravity to density at 60 °F
Convert °API to kg/m³. Precise factor for marine fuel engineering; sourced from NIST / ISO / MEPC reference tables.
- Apparent power kVA to kW at PF 0.8
Convert kVA to kW @ PF 0.8. Precise factor for marine electrical engineering; sourced from NIST / ISO / MEPC reference tables.
- Appendage & Roughness Allowance
ITTC-78 corrections applied to the bare-hull frictional coefficient before turning it into delivered power.
- Aqaba (JO) - Port Card
Aqaba, JO - annual throughput ~50,000 TEU, max draft 14 m. Jordan Red Sea.
- Arbitration - Cost & Time Budget
Budget for a maritime arbitration (LMAA / SCMA / HKIAC) given claim value - rule-of-thumb costs plus typical award timeline.
- Ashdod (IL) - Port Card
Ashdod, IL - annual throughput ~70,000 TEU, max draft 14 m. Israel.
- Asphalt - Loading Temperature
Asphalt loading temperature ~160-180 °C with steam-heated cargo tanks - basis for heater capacity.
- Asphaltene Reserve Stability Number
Rough stability screen - residual fuel is stable if Reserve = P-value − 1 ≥ 0.4. Values below 0.2 indicate impending asphaltene precipitation.
- ASTM 54B Volume Correction Factor
VCF for generalised petroleum products (table 54B) - converts bunker volume at observed temperature to volume at 15 °C.
- ASTM D1298 - Density, SG or API gravity by hydrometer
ASTM D1298 test method - Density, SG or API gravity by hydrometer. Common lab test used for marine fuel quality assessment.
- ASTM D130 - Copper strip corrosion
ASTM D130 test method - Copper strip corrosion. Common lab test used for marine fuel quality assessment.
- ASTM D189 - Carbon residue - Conradson
ASTM D189 test method - Carbon residue - Conradson. Common lab test used for marine fuel quality assessment.
- ASTM D2270 - Viscosity index
ASTM D2270 test method - Viscosity index. Common lab test used for marine lube quality assessment.
- ASTM D2272 - Oxidation stability - rotating pressure vessel
ASTM D2272 test method - Oxidation stability - rotating pressure vessel. Common lab test used for marine lube quality assessment.
- ASTM D2622 - Sulphur in petroleum - XRF
ASTM D2622 test method - Sulphur in petroleum - XRF. Common lab test used for marine fuel quality assessment.
- ASTM D2896 - Base number by perchloric acid titration
ASTM D2896 test method - Base number by perchloric acid titration. Common lab test used for marine lube quality assessment.
- ASTM D3227 - Mercaptan sulphur - potentiometric
ASTM D3227 test method - Mercaptan sulphur - potentiometric. Common lab test used for marine fuel quality assessment.
- ASTM D3279 - n-Heptane insolubles (asphaltenes)
ASTM D3279 test method - n-Heptane insolubles (asphaltenes). Common lab test used for marine fuel quality assessment.
- ASTM D4055 - Pentane insolubles
ASTM D4055 test method - Pentane insolubles. Common lab test used for marine lube quality assessment.
- ASTM D4172 - Wear preventive (Four-ball)
ASTM D4172 test method - Wear preventive (Four-ball). Common lab test used for marine lube quality assessment.
- ASTM D4176 - Free water and particulate contamination
ASTM D4176 test method - Free water and particulate contamination. Common lab test used for marine fuel quality assessment.
- ASTM D4294 - Sulphur in petroleum - ED-XRF
ASTM D4294 test method - Sulphur in petroleum - ED-XRF. Common lab test used for marine fuel quality assessment.
- ASTM D4530 - Carbon residue - Micro method
ASTM D4530 test method - Carbon residue - Micro method. Common lab test used for marine fuel quality assessment.
- ASTM D4739 - Base number by hydrochloric acid titration
ASTM D4739 test method - Base number by hydrochloric acid titration. Common lab test used for marine lube quality assessment.
- ASTM D4740 - Fuel cleanliness and compatibility - spot test
ASTM D4740 test method - Fuel cleanliness and compatibility - spot test. Common lab test used for marine fuel quality assessment.
- ASTM D482 - Ash from petroleum products
ASTM D482 test method - Ash from petroleum products. Common lab test used for marine fuel quality assessment.
- ASTM D4868 - Heat of combustion by bomb calorimeter
ASTM D4868 test method - Heat of combustion by bomb calorimeter. Common lab test used for marine fuel quality assessment.
- ASTM D5185 - Elemental analysis by ICP-AES
ASTM D5185 test method - Elemental analysis by ICP-AES. Common lab test used for marine lube quality assessment.
- ASTM D5708 - Nickel / Vanadium / Iron in crude - ICP-AES
ASTM D5708 test method - Nickel / Vanadium / Iron in crude - ICP-AES. Common lab test used for marine fuel quality assessment.
- ASTM D5950 - Pour point - automatic tilt method
ASTM D5950 test method - Pour point - automatic tilt method. Common lab test used for marine fuel quality assessment.
- ASTM D6304 - Water by Karl Fischer
ASTM D6304 test method - Water by Karl Fischer. Common lab test used for marine lube quality assessment.
- ASTM D6595 - Wear metals - RDE-OES
ASTM D6595 test method - Wear metals - RDE-OES. Common lab test used for marine lube quality assessment.
- ASTM D664 - Total acid number (TAN)
ASTM D664 test method - Total acid number (TAN). Common lab test used for marine fuel quality assessment.
- ASTM D7094 - Flash point - modified continuously closed cup
ASTM D7094 test method - Flash point - modified continuously closed cup. Common lab test used for marine fuel quality assessment.
- ASTM D86 - Distillation at atmospheric pressure
ASTM D86 test method - Distillation at atmospheric pressure. Common lab test used for marine fuel quality assessment.
- ASTM D892 - Foaming characteristics
ASTM D892 test method - Foaming characteristics. Common lab test used for marine lube quality assessment.
- ASTM D93 - Flash point (Pensky-Martens Closed Cup)
ASTM D93 test method - Flash point (Pensky-Martens Closed Cup). Common lab test used for marine fuel quality assessment.
- ASTM D97 - Pour point
ASTM D97 test method - Pour point. Common lab test used for marine fuel quality assessment.
- Auckland (NZ) - Port Card
Auckland, NZ - annual throughput ~70,000 TEU, max draft 14 m. NZ North.
- Auxiliary Engine Load Factor
Aggregates the major electrical and mechanical aux-consumers to get the average running load and resulting genset load factor.
- Availability
A = MTBF / (MTBF + MTTR) - the fraction of calendar time the equipment is capable of operating.
- Bales Seakeeping Rank
Bales seakeeping rank from ship geometry - a scalar metric that combines L, B, T, C_WP, C_VP to rank hull forms for seakeeping quality in the North Atlantic.
- Ballast Exchange - Volumetric Method
Volumetric ballast-water exchange - requires 300 % full tank volume pumped through to achieve 95 % replacement per BWM D-1.
- Ballast-Leg Correction
Attributes ballast-leg fuel to the paired laden leg so the round-trip EEOI reflects real commercial performance.
- Bar to Megapascals
Convert bar to MPa using the internationally-agreed conversion factor - the bridge between metric and Imperial marine units.
- Bar to psi
Convert bar to psi using the internationally-agreed conversion factor - the bridge between metric and Imperial marine units.
- Barcelona (ES) - Port Card
Barcelona, ES - annual throughput ~110,000 TEU, max draft 14 m. North West Med.
- Barrels (petroleum) to US gallons
Convert bbl to USgal. Precise factor for marine cargo engineering; sourced from NIST / ISO / MEPC reference tables.
- Barrels to Cubic Metres
Convert bbl to m³ using the internationally-agreed conversion factor - the bridge between metric and Imperial marine units.
- Barrels to US Gallons
Convert bbl to USgal using the internationally-agreed conversion factor - the bridge between metric and Imperial marine units.
- Base Number to Na equivalent
Convert mg KOH/g to ppm Na. Precise factor for marine lube engineering; sourced from NIST / ISO / MEPC reference tables.
- Basel Convention - Waste Export Check
Basel Convention notification requirement for transboundary movement of hazardous waste - flag state's notification to importing state.
- Battery - Ah to Wh Conversion
Convert battery Amp-hour to Watt-hour capacity for marine DC systems at specific voltage levels - emergency lighting 24 V, main services 110 V, DP 220 V.
- Battery - C-Rate Current
Convert a battery C-rate (e.g. 0.5C, 1C, 2C) into continuous discharge current given pack Ah rating - the figure used for peak-shaving and cold-start sizing.
- Battery Bank - Cycle Life vs Discharge
Battery cycle life as a function of depth of discharge (DoD) - a simple exponential fit used to budget ESS lifetime in hybrid installations.
- Battery Hybrid / Peak-Shaving
Battery packs smooth the aux-engine load profile - absorbing peaks, filling troughs - so gensets run closer to their best-SFOC operating point.
- BDN & ROB Reconciliation
Mass-balance method for fuel consumed per IMO MEPC.282(70) and EU MRV - the default where a mass-flow meter is not fitted.
- Beach-Landing Intact Stability Margin
Intact-stability margin for a ro-ro vessel with ramp down on beach - accounting for loss of reserve buoyancy forward.
- Bearing Defect Frequencies
BPFI, BPFO, BSF and FTF - the four characteristic vibration frequencies that appear in an envelope spectrum for a rolling-element bearing with a defect.
- Bearing Temp - Alarm Check
Shaft-line bearing temperature alarm - 65 °C normal, 75 °C alarm, 80 °C trip per maker.
- Beaufort ↔ Hs / Wind
Lookup of wind speed range + typical significant wave height from the Beaufort scale.
- Bernoulli - Head Balance
Total-head balance between two points in an incompressible flow - the classical Bernoulli equation for pump/pipe calculations.
- Berthing Energy - Fender Impact
Berthing kinetic energy absorbed by fender - the sizing formula for pier fender selection per PIANC WG33.
- Berthing Energy (PIANC)
Kinetic energy to be absorbed by fenders: E = ½·M·v²·Cm·Ce·Cs·Cc (PIANC WG33 / BS 6349-4).
- Bilge Plate Thickness
Approximate bilge-plate thickness from rule formula t = k·(L/100)·√(d + 2.0) mm, where d is draft.
- Bilge Transfer - Pump-Down Time
Time to pump down an engine-room bilge-holding tank to the next transfer-destination, given bilge-pump capacity and tank level.
- BIMCO CII Operations Clause Cost Allocation
Simplified owner / charterer split of SEEMP Part III corrective-plan costs under BIMCO's 2022 CII Operations Clause.
- Bio-methanol - Core Properties
Bio-methanol reference fuel card - NCV, density, CO₂ factor for energy-budget and emission calculations.
- Biodiesel B100 FAME - Core Properties
Biodiesel B100 FAME reference fuel card - NCV, density, CO₂ factor for energy-budget and emission calculations.
- Biofouling Management Plan - Compliance
Biofouling management plan mandatory per MEPC.378(80) - applies to all ships 2025 onwards + Australia / New Zealand port state already.
- Biofuel Blend - B24/B30 Energy Budget
Energy and CO₂ content of a VLSFO-biofuel blend (B24, B30, B100) - basis for tank sizing and CII/EU-MRV reporting.
- Biofuel Blend - Existing Engine Compatibility
Biofuel blend compatibility with existing engine + fuel system - gaskets, separator, storage tank.
- Black Carbon
GWP20 ≈ 460 makes BC a disproportionately potent short-lived forcer.
- Blend Compatibility (SPOT / CCAI)
Compatibility screening for two marine residual fuels before co-mingling on board. Combines a Calculated Carbon Aromaticity Index (CCAI) mass-weighted mix with the CCAI difference as a proxy for ASTM D4740 Spot-test risk.
- Block Coefficient - Ship-Type Ranges
Block coefficient C_B reference ranges for common merchant ship types - the starting parameter for hull-form specification and resistance screening.
- Block Coefficient (Cb)
Ratio of displacement volume to the enclosing L·B·T block - the most-cited hull fullness indicator.
- BM - from Waterline Inertia
Transverse metacentric radius BM from transverse moment of inertia of waterplane divided by displaced volume - fundamental stability geometry.
- BNWAS - Dormancy-Alert Timing
Bridge Navigational Watch Alarm System - dormancy period then stage 1 → 2 → 3 alarm per SOLAS V Reg. 19.2.2.3.
- Bodily Sinkage from Weight Addition
Parallel sinkage (or rise) when a weight is added - Δdraft = w / TPC.
- Boiler - Direct-Method Efficiency
Boiler thermal efficiency by direct method - steam output energy / fuel input energy.
- Boiler Blowdown - Conductivity Check
Boiler surface-blowdown trigger - when conductivity exceeds 3 000 µS/cm for auxiliary boilers.
- Boiler Efficiency - Direct Method
Direct (input-output) efficiency: useful heat in steam vs. fuel energy. Fast and accurate when steam flow and fuel flow are metered.
- Boiler Fuel Consumption
Marine boiler fuel rate from steam demand, evaporation enthalpy, efficiency and fuel LCV.
- Boiler Water - Hardness
Boiler water hardness control - ≤ 2 ppm CaCO₃ for auxiliary boilers.
- BOL - Role & Endorsement
Bill of lading role - document of title, receipt, evidence of contract. Negotiability via endorsement.
- Bollard Pull - BHP Conversion
Bollard pull in tonnes from brake horse power using the empirical BP/BHP coefficient - the quick tug-capability screen.
- Bosch Smoke Number Interpretation
Quick classification of a Bosch smoke-number reading from 0 (clean) to 10 (black), aligned with typical Tier II/III engine limits.
- Bow Flare Slam - Sea-Swell Check
Bow-flare slam frequency for a ship with significant flare angle - occurs in head seas when bow flare hits the approaching wave.
- Bow Slam Pressure - Ochi Formula
Design slam pressure on bow plating using Ochi-Motter empirical formula - basis for local scantling reinforcement forward of 0.15 L.
- Bow Slamming - Probability Estimate
Probability of bow slamming per wave encounter (Ochi 1964) based on bow forefoot emergence and relative vertical velocity.
- Brake horsepower to kW
Convert bhp to kW. Precise factor for marine engine engineering; sourced from NIST / ISO / MEPC reference tables.
- Brake Mean Effective Pressure (BMEP)
Single useful indicator of engine output intensity. BMEP = Pb·60·k / (V·N), where k=1 for 2-stroke, k=2 for 4-stroke.
- Brake Thermal Efficiency
Brake thermal efficiency from SFOC and fuel LCV. η_th = 3600 / (SFOC · LCV).
- Brayton Cycle - Gas Turbine Efficiency
Ideal Brayton-cycle thermal efficiency given pressure ratio and specific-heat ratio - the air-standard LM2500/MGT baseline.
- Break-Even Freight Rate
Minimum USD/t that makes a voyage cash-positive: (voyage costs + OPEX × days) / B/L tonnes.
- Breakdown exclusion calculator
Apportion breakdown time between vessel and shore for laytime accounting.
- Bretschneider Spectrum - Spectral Density
Spectral density S(ω) of the two-parameter Bretschneider spectrum at angular frequency ω given significant wave height H_s and modal period T_p.
- Brisbane (AU) - Port Card
Brisbane, AU - annual throughput ~80,000 TEU, max draft 14 m. Queensland.
- Broaching Risk in Following Seas
Broaching-to risk rises when wave celerity c exceeds 1.8·V_ship AND wave length is 1–3 × LBP.
- Brokerage - Commission Sharing
Brokerage commission on sale & purchase / charter - typically 1 % for S&P, 1.25 % for charter, split among brokers.
- BTU to Kilojoules
Convert BTU to kJ using the internationally-agreed conversion factor - the bridge between metric and Imperial marine units.
- BTU/h to Kilowatts
Convert BTU/h to kW using the internationally-agreed conversion factor - the bridge between metric and Imperial marine units.
- Buenos Aires (AR) - Port Card
Buenos Aires, AR - annual throughput ~110,000 TEU, max draft 13 m. Rio de la Plata.
- Bulbous Bow - Retrofit Savings
Fuel-saving estimate from a retrofit optimised bulbous bow - re-designed for the ship's actual operating draft and speed.
- Bulk - Shore Loading Rate Check
Shore loading-rate check against ship's max acceptable rate per BLU Code - stress-limit coordination.
- Bulk Carrier CII
MEPC.337 bulk-carrier reference line.
- Bulk Sulphur - Dust Explosion Risk
Bulk sulphur (granular or pellets) IMSBC Group B - dust-explosion risk during loading/discharging.
- Bunker - Density Temperature Correction
Convert observed bunker-fuel density @ T_obs to density @ 15 °C using ASTM D4311 - the standard bunker survey adjustment.
- Bunker - Microbial Contamination
Fuel microbial contamination detection - water + sludge + bacterial count > 100 CFU/mL alarm.
- Bunker Adjustment Factor (BAF)
BAF surcharge on base freight when bunker price moves above a trigger - liner trades and contract affreightments.
- Bunker Adjustment Factor (BAF)
Bunker Adjustment Factor recalculation when fuel price changes - the standard time-charter / liner tariff adjustment clause.
- Bunker Compatibility - Spot Test
Bunker compatibility spot test (ASTM D4740) - precipitate observed when two fuels are mixed.
- Bunker Convention 2001 - Liability Scope
Bunker Convention 2001 coverage - compulsory insurance for fuel-oil spill compensation for ships > 1,000 GT.
- Bunker Density vs Temperature (ISO 91-1)
Convert observed bunker volume to contractual mass by correcting density from the delivery temperature to 15 °C.
- Bunker Dispute - Sample Test Variance
Acceptable variance between BDN quality and retained-sample laboratory result - thresholds for commercial challenge.
- Bunker Sampling - Drip Sample Check
Representative bunker drip-sample protocol - continuous sampling throughout delivery, sealed sample per MEPC.182(59).
- Bunker Stem - Optimal Quantity
Optimal bunker-stem size given ROB, differential price between the current and next port, and safety margin - the basic lift/leave split that underpins bunker-economics routing.
- Bunker Survey - Wedge Formula
Wedge-formula approximation for fuel volume in a trimmed tank - used when the tank is not fully level (typical sounding condition).
- Bunker Viscosity - at Injection T
HFO viscosity at injection temperature - targets 12–17 cSt for proper atomisation.
- Burrill Thrust-Loading Coefficient τ_c
Thrust-loading coefficient τ_c for propeller back cavitation assessment per Burrill 1943 chart - screens whether back cavitation area is acceptable.
- Busan (KR) - Port Card
Busan, KR - annual throughput ~220,000 TEU, max draft 17 m. Korean hub.
- BV - AALS (Automatic anti-lock)
BV class notation AALS - Automatic anti-lock. Eligibility + survey-scope check.
- BV - AUT-UMS (Unattended ER)
BV class notation AUT-UMS - Unattended ER. Eligibility + survey-scope check.
- BV - CPS-ER (Corrosion prot)
BV class notation CPS-ER - Corrosion prot. Eligibility + survey-scope check.
- BV - Stackable (Container)
BV class notation Stackable - Container. Eligibility + survey-scope check.
- BV CLEANSHIP / SUPER CLEANSHIP
Bureau Veritas environmental notation in two tiers.
- BWM Convention - Discharge Locations
Ballast-water exchange vs treatment location compliance under BWM Convention.
- BWMS - Type-Approval Test Classification
BWMS type-approval test classification per MEPC.300(72) / USCG 46 CFR 162 - criteria against D-2 standard.
- BWMS UV - Applied Dose Check
UV dose (mJ/cm²) delivered by a ballast-water UV treatment system - compared to the reference 40 mJ/cm² target per USCG BWMS type-approval practice.
- C10 - Pacific RV
C10 benchmark route for Capesize: Pacific RV. Rate × distance → TCE.
- C14 - China → Brazil RV
C14 benchmark route for Capesize: China → Brazil RV. Rate × distance → TCE.
- C17 - Saldanha Bay → Qingdao
C17 benchmark route for Capesize: Saldanha Bay → Qingdao. Rate × distance → TCE.
- C5 - W.Aus → China (iron ore)
C5 benchmark route for Capesize: W.Aus → China (iron ore). Rate × distance → TCE.
- C7 - Colombia → ARA (coal)
C7 benchmark route for Capesize: Colombia → ARA (coal). Rate × distance → TCE.
- Cabin CO₂ - Time to Threshold
Time to reach a CO₂ threshold in an occupied cabin with limited ventilation - the sizing logic for fresh-air make-up.
- Cable - Trefoil vs Flat Formation
Cable-ampacity difference between trefoil and flat formation per IEC 60287 - ship cable trays rarely perfect trefoil.
- Cable Ampacity - Derating Factors
Apply temperature and grouping derating factors to IEC 60092-352 ampacity - final allowable continuous current for a marine cable run.
- Cable length to metres (nautical)
Convert cable to m. Precise factor for marine navigation engineering; sourced from NIST / ISO / MEPC reference tables.
- Cable Voltage Drop (3-phase)
Steady-state voltage drop across a 3-phase cable run: ΔU = √3·I·L·(R·cos φ + X·sin φ).
- Cable-Layer Fuel & CO₂
Submarine-cable installation vessels. Outside CII scope; per-km-cable-laid intensity serves as the industry benchmark.
- CAC Condensate - Formation Check
Charge-air-cooler condensate formation - occurs when air dew point > CAC outlet T. Water droplets damage engine.
- Cai Mep (VN) - Port Card
Cai Mep, VN - annual throughput ~100,000 TEU, max draft 16 m. Deep-water HCMC.
- Calorific value — kcal/kg to BTU/lb
Convert kcal/kg to BTU/lb. Precise factor for marine fuel engineering; sourced from NIST / ISO / MEPC reference tables.
- Capacity Basis - DWT vs GT
Which capacity metric applies under EEDI, EEXI, and CII differs by ship type and regulation.
- Cape Town (ZA) - Port Card
Cape Town, ZA - annual throughput ~80,000 TEU, max draft 15 m. SA West.
- CARB At-Berth Regulation
California Air Resources Board requires visiting ocean-going vessels to connect to shore power (or use a CARB-approved emission-control system) within a set time after berthing, in Californian ports of Los Angeles, Long Beach, Oakland, San
- Carbon intensity — nm basis to km basis
Convert gCO₂/t·nm to gCO₂/t·km. Precise factor for marine emissions engineering; sourced from NIST / ISO / MEPC reference tables.
- Cargo Certificate - SOLAS VI Check
Shipper's cargo-information certificate check per SOLAS VI Reg. 2 - mandatory before loading bulk / general cargo.
- Cargo Compatibility - Reactive Pair Check
Screen incompatible cargo pairs per IMDG / USCG compatibility chart - common chemical-tanker hazard classes.
- Cargo Gas - Reid Vapour Pressure
Reid Vapour Pressure (RVP) of light cargoes (gasoline, naphtha) vs environmental and safety limits.
- Cargo Heat - Spontaneous Combustion
Self-heating hazard classification for bulk cargoes (coal, DRI, sulphide) - temperature trend and gas composition.
- Cargo Heat-Up - Time from Boiler
Time to warm a heated cargo from current temperature to discharge-pumpable temperature given boiler steam output and cargo mass - used in HFO and asphalt loading plans.
- Cargo Heating - Fuel Cost per Voyage
Voyage fuel cost to keep a heated cargo (HFO, asphalt, vegoil) above its discharge-pumpable temperature given ambient seawater and tank U-value.
- Cargo Heating Coil - Area Requirement
Heating-coil area required to maintain cargo T = steam duty / (U × ΔT).
- Cargo Heating Coil - Steam Pressure
Steam supply pressure required for cargo heating coils to transfer design heat duty - correlates to saturation temperature.
- Cargo Heating Duty (Q = U·A·ΔT)
Heat duty to hold tank cargo at setpoint - steady-state loss through tank walls only.
- Cargo Heating Sensor Calibration
Cargo-heating RTD sensor calibration check - max 2 °C offset vs portable thermometer for accurate heating control.
- Cargo Hold - Heat Release Rate
Estimated heat-release rate (HRR) from a developing cargo fire in a hold - basis for sizing fire-fighting water or CO₂ suppression.
- Cargo Insurance - ICC Clause Type
Institute Cargo Clauses (A, B, C) coverage selection - level of peril covered for marine cargo insurance.
- Cargo P/V Valve - Setting Check
P/V valve setting check vs tank design pressure - positive and vacuum side.
- Cargo Tank - Acid-Base Incompat.
Sequential-cargo compatibility - acid tank loaded with base without proper cleaning = exothermic reaction risk.
- Cargo Tank - LEL / UEL Check
Cargo-tank atmosphere LEL / UEL check - must be either below LEL or inerted below O₂ threshold.
- Cargo Tank Venting - Velocity Check
Check cargo-tank venting outlet velocity - SOLAS II-2 Reg. 11.6 requires ≥ 30 m/s from P/V outlet to disperse vapour.
- Cartagena Colombia (CO) - Port Card
Cartagena Colombia, CO - annual throughput ~110,000 TEU, max draft 17 m. Caribbean container.
- Caterpillar 3512C Marine - MCR per Cylinder
Caterpillar 3512C Marine engine card: 1320 kW per cylinder at 1600 rpm, SFOC 203 g/kWh.
- Caterpillar C280-16 - MCR per Cylinder
Caterpillar C280-16 engine card: 4020 kW per cylinder at 1000 rpm, SFOC 195 g/kWh.
- Caterpillar C32 Marine - MCR per Cylinder
Caterpillar C32 Marine engine card: 746 kW per cylinder at 1800 rpm, SFOC 205 g/kWh.
- Cathodic Protection - Required Current
Required cathodic protection current for hull underwater area given current density and coating condition - screen ICCP / sacrificial anode sizing.
- Cathodic Protection Current Density
Typical cathodic-protection current-density requirement for uncoated vs coated steel in sea water per DNV-RP-B401.
- cbDIST - CO₂ per capacity nautical mile
Generic capacity-normalised operational CO₂ intensity. Use whatever capacity denominator is appropriate for the fleet comparison - DWT, GT, TEU, lane-metre, reefer plug, etc.
- CCAI - Calculated Carbon Aromaticity Index
Ignition-quality index for residual marine fuels. CCAI = ρ₁₅ − 81 − 141·log(log(ν₅₀ + 0.85)). Values > 870 correlate with hard-starting and combustion noise.
- CCS - MRV-CHINA (China MRV)
CCS class notation MRV-CHINA - China MRV. Eligibility + survey-scope check.
- CCS - NIBS (Integrated bridge)
CCS class notation NIBS - Integrated bridge. Eligibility + survey-scope check.
- Celsius to Fahrenheit
Convert °C to °F using the internationally-agreed conversion factor - the bridge between metric and Imperial marine units.
- Celsius to Kelvin
Convert °C to K using the internationally-agreed conversion factor - the bridge between metric and Imperial marine units.
- Cement Carrier CII
General-cargo reference under MEPC.337. Pneumatic discharge is the fuel-specific quirk.
- Centipoise to Pa·s
Convert cP to Pa·s using the internationally-agreed conversion factor - the bridge between metric and Imperial marine units.
- Cetane Index - ASTM D4737 (improved)
ASTM D4737 improved 4-variable Cetane Index formula (preferred over D976 for regulatory use).
- Cetane Index - ASTM D976 (4-variable)
Calculated Cetane Index for distillate marine fuels using ASTM D976 four-variable formula - a surrogate for DCN / cetane number when no engine test is available.
- Cetane Index (ASTM D976)
Estimate cetane index from density and mid-boiling point (T50) - the lab proxy for actual cetane number on distillate fuels.
- CFM to m³/h (ventilation)
Convert ft³/min to m³/h. Precise factor for marine hvac engineering; sourced from NIST / ISO / MEPC reference tables.
- cgDIST - CO₂ per gross-tonnage nautical mile
The capacity-normalised operational CO₂ metric for ships where gross tonnage is the better capacity basis than deadweight - ro-pax, ro-ro vehicle carriers, and cruise ships per MEPC.337(76).
- CH₄ Methane Slip
- Charge Air Cooler - Effectiveness
Charge-air-cooler (CAC) thermal effectiveness - (T_in − T_out) / (T_in − T_sw).
- Charge Air Cooler Effectiveness
ε = (T1 − T2) / (T1 − T_cw) - CAC effectiveness. Modern marine CAC typically 0.70–0.85.
- Charleston (US) - Port Card
Charleston, US - annual throughput ~100,000 TEU, max draft 14 m. US SE.
- Charter - Freight / Demurrage Deposit
Pre-voyage freight deposit requirement and demurrage deposit on fixture - the standard shipper-owner cash flow.
- Charter - Off-Hire Deduction
Off-hire deduction from a time-charter hire payment when the vessel is not fully available - per NYPE / Baltime clauses.
- Charter - Off-Hire Grace Period
Off-hire grace period before cost deductible - typically 6 hours for machinery issues under NYPE Cl. 15.
- Charter - Withdraw Ship for Unpaid Hire
Owner's right to withdraw ship for unpaid hire under NYPE Cl. 11 - anti-technicality notice requirement.
- Charter Clause - GENCON 1994 Cl. 4
GENCON 1994 Cl. 4: Freight rate + currency. Reference summary for contract negotiation + dispute.
- Charter Clause - GENCON 1994 Cl. 5
GENCON 1994 Cl. 5: Loading / discharging. Reference summary for contract negotiation + dispute.
- Charter Clause - NYPE Cl. 11
NYPE Cl. 11: Non-payment + withdrawal. Reference summary for contract negotiation + dispute.
- Charter Clause - NYPE Cl. 15
NYPE Cl. 15: Off-hire. Reference summary for contract negotiation + dispute.
- Charter Clause - NYPE Cl. 17
NYPE Cl. 17: BIMCO sanctions clause. Reference summary for contract negotiation + dispute.
- Charter Clause - NYPE Cl. 2
NYPE Cl. 2: Period / delivery window. Reference summary for contract negotiation + dispute.
- Charter Clause - NYPE Cl. 23
NYPE Cl. 23: War risks. Reference summary for contract negotiation + dispute.
- Charter Clause - NYPE Cl. 30
NYPE Cl. 30: Dispute resolution (LMAA / SCMA / HKIAC). Reference summary for contract negotiation + dispute.
- Charter Clause - NYPE Cl. 31
NYPE Cl. 31: Bunker quantity + quality. Reference summary for contract negotiation + dispute.
- Charter Clause - NYPE Cl. 35
NYPE Cl. 35: Ice clauses. Reference summary for contract negotiation + dispute.
- Charter Clause - NYPE Cl. 37
NYPE Cl. 37: Piracy clause. Reference summary for contract negotiation + dispute.
- Charter Clause - NYPE Cl. 4
NYPE Cl. 4: Hire rate. Reference summary for contract negotiation + dispute.
- Charter Clause - NYPE Cl. 6
NYPE Cl. 6: Payment of hire. Reference summary for contract negotiation + dispute.
- Charter Clause - NYPE Cl. 8
NYPE Cl. 8: Speed + bunker consumption warranty. Reference summary for contract negotiation + dispute.
- Charter Party - Standard Form Pick
Standard charter-party form selection - BIMCO vs others - by segment + duration.
- Chartering - LLMC Liability Cap
Limit of Liability for Maritime Claims (LLMC) - SDR-based cap on non-personal-injury + personal-injury claims.
- Chem Tanker - Stripping Residue
Chemical tanker stripping-residue limits per IBC Code Ch. 5 - 100 / 300 L per tank depending on cargo category.
- Chem Tanker - Venting Type Check
Venting arrangement (open / controlled / closed) required per IBC Code Ch. 8 - a function of cargo flammability.
- Chemical Tanker - Prewash Requirement
Check whether prewash is required per MARPOL Annex II Reg. 13 - mandatory for Cat X and high-viscosity / solidifying cargoes.
- Chennai (IN) - Port Card
Chennai, IN - annual throughput ~80,000 TEU, max draft 13 m. India east.
- china msa dcs
See live calculator aside for regulator URLs.
- Chittagong (BD) - Port Card
Chittagong, BD - annual throughput ~80,000 TEU, max draft 10 m. Bangladesh.
- CII - Required Line by Year
Required CII for a given ship-type and year - the benchmark used in the A-E rating thresholds.
- CII - SFOC & Fuel Mix Quick Check
Quick CII check from main-engine SFOC, auxiliary-engine load, and ship-size parameters - for design-stage sensitivity.
- CII - Year-on-Year Improvement
CII year-on-year improvement vs required - rising required curve + stable attained → improving rating.
- CII 3-Year Corrective Plan
After D-for-three-years or a single E rating, owners submit a SEEMP Part III plan projecting how to return to at least C.
- CII Attained (MEPC.336(76))
The Annual Efficiency Ratio variant of the Carbon Intensity Indicator, used for most cargo ships of ≥ 5,000 GT.
- CII Attained vs Required (Headroom / Deficit)
For a ship that already knows its attained CII for the reporting year (from the CII Attained calculator, the EU MRV report, the IMO DCS submission, or noon-report aggregation), this calculator computes the Required CII for the chosen year a
- CII Corrective Trajectory
For a ship that has triggered the CII corrective action plan requirement under MARPOL Annex VI Regulation 28.10 (rated D for three consecutive years or E for one year), the corrective action plan must project the attained CII forward over t
- CII Fuel Mix Correction
When a ship operates on multiple fuels (LNG dual-fuel, methanol dual-fuel, ammonia dual-fuel, biofuel-blended bunkers, drop-in renewable diesel, hydrogen pilot trials), the attained CII is no longer the simple single-fuel calculation of the
- CII Rating (MEPC.339(76))
Converts a ship's attained CII and required CII into the A–E rating that MARPOL Annex VI uses to flag compliance and trigger corrective-action plans.
- CII Required (MEPC.337(76), MEPC.338(76))
The target operational carbon intensity for a given ship, year, and ship type.
- CII Voyage Adjustments & Exclusions (MEPC.355(78))
Recognised exclusions let operators deduct fuel+distance for voyages that burn fuel without corresponding commercial work.
- Class Notation - ABS ENVIRO+
ABS ENVIRO+ notation - enhanced environmental performance beyond MARPOL.
- Class Notation - DNV Clean Design
DNV Clean Design notation - reduced environmental impact via fuel / cargo / ballast / sewage + OPS readiness.
- ClassNK - CCO(RS) (Remote survey)
ClassNK class notation CCO(RS) - Remote survey. Eligibility + survey-scope check.
- ClassNK - Digital Grade A/B/C (Digital)
ClassNK class notation Digital Grade A/B/C - Digital. Eligibility + survey-scope check.
- ClassNK - IWSP (IWS prep)
ClassNK class notation IWSP - IWS prep. Eligibility + survey-scope check.
- ClassNK - NIBS-M1/M2 (Integrated bridge)
ClassNK class notation NIBS-M1/M2 - Integrated bridge. Eligibility + survey-scope check.
- ClassNK - PSPC(B) (Coating ballast)
ClassNK class notation PSPC(B) - Coating ballast. Eligibility + survey-scope check.
- ClassNK GF (Gas-Fuelled) Notation
ClassNK notation for ships using gas as primary fuel - certifies IGF Code compliance + additional GF-specific requirements.
- ClassNK IE / Innovation Notation
Japanese class society ClassNK's innovation notation, combining a baseline IE (Innovative Environmental) with stackable sub-notations.
- CLC - Oil Pollution Compensation Limit
Civil Liability Convention limitation of shipowner's liability for oil pollution - based on GT.
- Clean Shipping Index (CSI)
Cargo-owner-driven 0–100 index across five environmental categories.
- Closed Gauging - Temp-Density Error
Error in net cargo quantity from a 1 °C mis-read temperature or 1 kg/m³ density mis-report, at a typical ullage gauge - the drivers of ship-to-shore figure disputes.
- Closed Scrubber - FW Consumption
Closed-loop scrubber fresh-water make-up for NaOH dosing + blowdown - OPEX impact beyond NaOH.
- CO Emissions
- CO₂ % in Flue Gas
Theoretical (dry) CO₂ concentration in flue gas as a function of excess air - useful cross-check against stack analyser.
- CO₂ Cylinder Bank (Machinery Space)
CO₂ mass for an engine-room fixed extinguishing system at 40 % volume concentration per FSS Code Ch.5.
- CO₂ from Fuel (Cf method)
- CO₂ per kWh to per MJ
Convert kg CO₂/kWh to g CO₂/MJ. Precise factor for marine emissions engineering; sourced from NIST / ISO / MEPC reference tables.
- CO₂ per MJ equivalence to per GJ
Convert g CO₂/MJ to kg CO₂/GJ. Precise factor for marine emissions engineering; sourced from NIST / ISO / MEPC reference tables.
- CO₂ Room - Over-Pressure Check
CO₂ room peak over-pressure after total release - venting / relief panel sizing check.
- CO₂ System - 85 % Discharge in 2 min
Check fixed CO₂ system performance per FSS Code Ch. 5: 85 % of the protected-space volume must be discharged within 2 minutes for engine room / cargo hold systems.
- CO₂ System - Volume Adequacy Check
Check required CO₂ cylinder bank capacity against protected-space volume - 35 % design concentration for cargo holds, 40 % engine-room.
- Coal - Self-Heating Indicator
IMSBC coal self-heating screening - temperature rise, CH₄ / CO concentrations in cargo space trigger action.
- Coal Methane - Ventilation Rate
Hold-ventilation rate required to keep methane below 20 % LEL during coal voyage - fresh-air make-up calculation.
- Coating - Bilge Paint
Bilge Paint coating card: Black-oil-resistant epoxy.
- Coating - Chemical Tank Epoxy
Chemical Tank Epoxy coating card: Phenolic-epoxy, 1-2 y immersion.
- Coating - Chemical Tank Zinc Silicate
Chemical Tank Zinc Silicate coating card: Inorganic zinc, alkali-resistant.
- Coating - Chugoku Seaflo Neo-CF
Chugoku Seaflo Neo-CF coating card: Japanese SPC.
- Coating - Deck Non-slip
Deck Non-slip coating card: Silica-filled epoxy.
- Coating - Engine Room High-temp
Engine Room High-temp coating card: Aluminium-silicate, 500 °C.
- Coating - Epoxy Intermediate
Epoxy Intermediate coating card: Anti-corrosive build coat.
- Coating - Hard Antifouling Ablative
Hard Antifouling Ablative coating card: Copper tin-free, 3-4 y docking.
- Coating - Hempadur Avantguard
Hempadur Avantguard coating card: Hempel zinc-activated primer.
- Coating - Hempaguard X7
Hempaguard X7 coating card: Hempel silicone fouling-release.
- Coating - International Interzone
International Interzone coating card: Tank coating - cargo-resistant.
- Coating - Intersleek 1100SR
Intersleek 1100SR coating card: AkzoNobel silicone, high-gloss.
- Coating - Intersmooth 7465
Intersmooth 7465 coating card: AkzoNobel SPC copper, biocidal.
- Coating - Intertank GTA 007
Intertank GTA 007 coating card: Tank coating - LNG service.
- Coating - IOPP Cargo Tank Coating
IOPP Cargo Tank Coating coating card: Marine gas oil approved.
- Coating - Jotamastic 90
Jotamastic 90 coating card: Jotun universal primer.
- Coating - Jotun SeaForce Active
Jotun SeaForce Active coating card: SPC copper.
- Coating - Jotun SeaQuantum
Jotun SeaQuantum coating card: Fluorinated SPC.
- Coating - KCC Vebatex
KCC Vebatex coating card: Korean SPC.
- Coating - LNG Tank Secondary Barrier
LNG Tank Secondary Barrier coating card: Membrane / polyurethane foam.
- Coating - Nippon Marine LF-Sea
Nippon Marine LF-Sea coating card: Low-friction fouling release.
- Coating - Polyurethane Topcoat
Polyurethane Topcoat coating card: UV-resistant, topside.
- Coating - Propeller Anti-fouling
Propeller Anti-fouling coating card: Silicone foul-release.
- Coating - Rudder Hardening
Rudder Hardening coating card: Wear-resistant nickel-aluminium bronze.
- Coating - SPC Antifouling - Copper
SPC Antifouling - Copper coating card: Copper-based self-polishing, 5 y docking.
- Coating - SPC Antifouling - Silicone
SPC Antifouling - Silicone coating card: Fouling-release, 10+ y lifetime.
- Coating - Water Ballast PSPC
Water Ballast PSPC coating card: Edge-stripe + main coat per PSPC(B).
- Coating - Weld Seam Sealer
Weld Seam Sealer coating card: Pre-fabrication shop primer.
- Coating - Zinc Epoxy Primer
Zinc Epoxy Primer coating card: Water-tank epoxy - 150 µm DFT, PSPC approved.
- Coating - Zinga Zinc
Zinga Zinc coating card: Cold galvanising, cathodic.
- Coating Adhesion Pull-off Test
ISO 4624 pull-off adhesion strength - marine specs require ≥ 3 MPa for new-build coatings, ≥ 5 MPa for PSPC-qualified.
- Cofferdam Heating - Duty & Surface Temperature
Cofferdam glycol-heater duty required to keep inner-hull steel above the brittle-fracture limit (+5 °C) given cargo-tank temperature and ambient seawater.
- Cold Ironing (OPS) Savings
Fuel and CO₂ savings when a ship plugs into Onshore Power Supply (OPS) instead of running auxiliary engines at berth.
- Collision Bulkhead Position (SOLAS II-1 Reg 11)
Collision bulkhead must sit between 0.05·Ls and 0.08·Ls from the forward perpendicular (up to 3 m).
- Collision Energy Absorption (DNV)
Bow-to-side collision kinetic energy at impact: E = ½ · M_eff · V² between two ships of different size.
- Colombo (LK) - Port Card
Colombo, LK - annual throughput ~100,000 TEU, max draft 14 m. Sri Lanka hub.
- Compartment Permeability (SOLAS II-1)
Lookup of permeability μ by compartment type per SOLAS II-1 Reg 7-3 - the fraction of compartment volume that can actually flood.
- Compass Error - Variation + Deviation
Convert compass course to true course using variation (chart) and deviation (deviation card) - the classical "True Virgins Make Dull Company" chain.
- Compression Ratio
Compression ratio rk = (V_s + V_c) / V_c - dominant driver of Otto/Diesel cycle efficiency.
- Concentration — mol/m³ to ppm at STP
Convert mol/m³ to ppm. Precise factor for marine gas engineering; sourced from NIST / ISO / MEPC reference tables.
- Conduction Through a Wall
Steady-state conduction through a plane wall: Q = k·A·ΔT / L. The U·A building block for every insulation calculation.
- Container - ACEP / Inspection Interval
Container safety inspection under ACEP per CSC Convention - 24-month first inspection, then 30-month intervals.
- Container - Mis-declared DG Impact
Risk / insurance cost of a mis-declared dangerous-goods container - estimated from typical box value × chain of loss.
- Container - Reefer Plug Count
Reefer socket count typically offered on container ship classes - 4 % (feeder) to 20 % (reefer carrier).
- Container - VGM Method Check
SOLAS VI Reg. 2 verified gross mass (VGM) method - Method 1 (weigh loaded container) or Method 2 (sum + 5 %).
- Container Hatch Cover - Deck Load
Design deck load on a container-ship hatch cover from stack weight - basic scantling input per CSR Containerships.
- Container Lashing - Twist-Lock Load
Twist-lock / lashing-rod load under roll-plus-pitch accelerations - the CSS Code transverse-acceleration check.
- Container Ship CII
MEPC.337 container-ship reference line.
- Container Stack - Max Weight Check
Check maximum stack weight vs lashing / corner-post capacity per ISO 1496-1 and CSS Code - the basic containerised-cargo planning constraint.
- Containers-Shanghai-LA - Shanghai → Los Angeles (SCFI)
Containers-Shanghai-LA benchmark route for Containership: Shanghai → Los Angeles (SCFI). Rate × distance → TCE.
- Containers-Shanghai-NewYork - Shanghai → New York (SCFI)
Containers-Shanghai-NewYork benchmark route for Containership: Shanghai → New York (SCFI). Rate × distance → TCE.
- Containers-Shanghai-Rotterdam - Shanghai → Rotterdam (SCFI)
Containers-Shanghai-Rotterdam benchmark route for Containership: Shanghai → Rotterdam (SCFI). Rate × distance → TCE.
- COP - Cooling
Coefficient of performance for cooling: useful evaporator duty divided by compressor work. The headline refrigeration efficiency number.
- COP - Heating (Heat Pump)
Heat-pump COP: useful condenser duty / compressor work. COP_heat = COP_cool + 1 in an ideal cycle.
- Corrosion Rate - NACE / ASTM G1
Uniform corrosion rate in mm/year from coupon weight loss - the standard NACE/ASTM G1 calculation used for cargo-tank and ballast-tank monitoring.
- Corrugated Bulkhead - Section Modulus
Section modulus of a unit corrugation in a vertical corrugated cargo-hold bulkhead - the primary scantling check per CSR-BC Part 1.
- Course to Steer with Tidal Stream
Course-to-steer and speed-over-ground when a tidal stream sets across the track. Vector triangle closure.
- COW - Tank Cycle per MARPOL
Crude-Oil Washing tank cycle rate per MARPOL Annex I Reg. 33 - 25 % of cargo tanks per voyage minimum.
- CPA / TCPA
Closest Point of Approach distance and time from own-ship and target course+speed. The core radar plotting relationship for COLREG compliance.
- Crane Dynamic Factor - DNV-ST-0378
Hoisting dynamic factor ψ for offshore and shipboard cranes per DNV-ST-0378 / API 2C - the multiplier on static load for design.
- Crane Pedestal - Overturning Moment
Crane-pedestal overturning moment from load × radius × dynamic factor - drives structural reinforcement.
- Crane Tipping Moment - SWL vs Radius
Safe working load at a given radius for a jib crane with triangular stability limit - SWL × radius = constant overturning moment.
- Crankcase Explosion - Cooling Time
Waiting time before opening crankcase after an OMD trip - 30 minutes cooling minimum per MAN ES / WinGD.
- Crankcase Explosion-Relief Area (UR M9)
Minimum total vent area of explosion-relief valves for a crankcase, per IACS UR M9.
- Crankcase Oil Mist - Alarm Check
Crankcase oil-mist detector (OMD) alarm - 2.5 mg/L trips engine per IACS UR M10.
- Crash Stop Distance
Track reach during full-astern crash stop - IMO MSC.137(76) requires ≤ 15 L. Order-of-magnitude estimate using momentum and astern thrust.
- Crew Change - Cost & P&I Cover
Rough crew-change cost per seafarer - airfare, agency, quarantine, medicals - with P&I cover note.
- Cross-Flooding Equalisation Time
Time to equalise an asymmetrically flooded tank pair through a cross-flooding duct - must be ≤ 10 min per MSC.245(83) / MSC.362(92).
- Crude Oil Tanker CII
Ship-type-specific CII for crude tankers (VLCC, Suezmax, Aframax, Panamax).
- Crude Oil Wash - Volume Budget
COW crude-oil volume required for a cargo-tank wash - empirical for ISGOTT 6 / MARPOL Reg. 33.
- Crude Oil Washing - Programme Sizing
Crude-Oil-Washing programme duration and estimated residue removed per MARPOL Annex I Reg. 33 - single-stage top wash.
- Cruise - Cabin Noise Limit
Cabin-noise limits per IMO Res. A.468(XII) - crew cabins ≤ 55 dB(A); passenger cabins ≤ 50 dB(A).
- Cruise - Pool Water Dispensing
Pool water turnover rate per US VSP / EU Vessel Sanitation Plan - minimum 6 h turnover for cruise pools.
- Cruise - Provisions Per PAX Per Day
Provisions consumption per passenger per day for a cruise ship - used for cargo hold sizing and port-resupply planning.
- Cruise - Waste Water Tank Sizing
Greywater + blackwater holding-tank sizing for a cruise ship between port discharges - sized by pax × day × per-capita flow.
- Cruise Ship CII
MEPC.337 cruise-ship reference line.
- cSt to Saybolt Universal Seconds (low range)
Convert cSt to SUS. Precise factor for marine fuel engineering; sourced from NIST / ISO / MEPC reference tables.
- CTV (Crew Transfer Vessel) Fuel & CO₂
Offshore-wind Crew Transfer Vessels - fast cats that ferry technicians from shore to turbines. Outside CII scope; operators benchmark per technician-transfer.
- Cube Law Fuel Ratio
Quick ratio of main-engine fuel at two speeds using V^n scaling. Screened separately from the voyage-slow-steaming page for one-liner use.
- Cubic Feet to Cubic Metres
Convert ft³ to m³ using the internationally-agreed conversion factor - the bridge between metric and Imperial marine units.
- Cubic Metres to Barrels
Convert m³ to bbl using the internationally-agreed conversion factor - the bridge between metric and Imperial marine units.
- Cubic Metres to US Gallons
Convert m³ to USgal using the internationally-agreed conversion factor - the bridge between metric and Imperial marine units.
- Cummins Marine QSK19 - MCR per Cylinder
Cummins Marine QSK19 engine card: 559 kW per cylinder at 2100 rpm, SFOC 208 g/kWh.
- Cummins Marine QSK38 - MCR per Cylinder
Cummins Marine QSK38 engine card: 1193 kW per cylinder at 1800 rpm, SFOC 205 g/kWh.
- Cummins Marine QSK60-M - MCR per Cylinder
Cummins Marine QSK60-M engine card: 1864 kW per cylinder at 1900 rpm, SFOC 200 g/kWh.
- Cummins Marine QSM-11 - MCR per Cylinder
Cummins Marine QSM-11 engine card: 477 kW per cylinder at 2300 rpm, SFOC 215 g/kWh.
- Cylinder Balance Check
Maximum cylinder-to-cylinder Pmax / EGT deviation from mean - alarm threshold ±5 % per IACS / engine-maker standard.
- Cylinder Liner - Wear Rate Limit
Cylinder liner wear rate benchmark - 0.03–0.08 mm / 1000 h typical for 2-stroke; rising trend indicates oil or fuel issue.
- Cylinder Oil Feed Rate - MAN ACC
MAN Anti-Corrosion Control feed-rate formula: 0.26 g/kWh × %S × BN70/BN_actual, minimum 0.6 g/kWh.
- Cylinder Oil Feed Rate - WinGD LCD
WinGD Load-Change-Dependent feed-rate at given load and BN. Encourages under-feeding at part-load to cut lube consumption.
- D-2 Discharge Compliance Check
BWM Convention D-2 limits for treated ballast water: ≤ 10 viable organisms/m³ (≥ 50 µm) and ≤ 10/mL (10–50 µm).
- Daihatsu Daihatsu DE-28 - MCR per Cylinder
Daihatsu Daihatsu DE-28 baseline: 500 kW per cylinder at 720 rpm, SFOC 194 g/kWh. Compute MCR + fuel for given cylinder count.
- Daily OPEX Build-up
Sum of operating-expense categories to get a daily OPEX figure - the break-even baseline for time-charter pricing.
- Damage - Permeability Factor
Compartment permeability for damage stability - dry cargo 0.7, liquid 0.95, machinery 0.85 per SOLAS II-1.
- Damage Stability - B/5 Line Assumption
Damage penetration depth per classical SOLAS II-1 deterministic rule - horizontal penetration ≤ B/5 measured inboard from the moulded side.
- Damage Stability - Margin-Line Clearance
Margin-line clearance check - in damaged condition, the waterline must not immerse the margin line (76 mm below bulkhead deck at side) per SOLAS II-1 Reg. 7.
- Damage Stability - Multi-Draft A
Multi-draft attained A index (ds / dp / dl) per SOLAS II-1 Reg. 6 - weighted 0.4 / 0.4 / 0.2.
- Dampier (AU) - Port Card
Dampier, AU - annual throughput ~50,000 TEU, max draft 19 m. Iron ore + LNG.
- Darcy-Weisbach Pressure Drop
Pipe-run pressure drop from friction factor, length, diameter and velocity. h_f = f·(L/D)·V²/2g.
- Dead Reckoning - Error Growth
Dead-reckoning position error growth from course, speed, leeway and current errors over elapsed time - the uncertainty budget for DR legs.
- Dead-Reckoning Position
Advance an initial position by a course and speed for a given elapsed time - the basic DR calculation.
- Deck Section Modulus
Deck section modulus Z_d = I / y_d - governs bending stress in compression at the deck for a sagging wave.
- Deck Wetness - Freeboard Exceedance
Probability of bow freeboard exceedance (deck wetness) per wave encounter using the Rayleigh distribution and motion σ.
- Deck-Foam Concentrate - Required Volume
Deck-foam concentrate volume for tankers per SOLAS II-2 Reg. 10.8 - minimum 20 min foam generation over the cargo area at the design application rate.
- Degrees to Mils
Convert deg to mil using the internationally-agreed conversion factor - the bridge between metric and Imperial marine units.
- Degrees to Radians
Convert deg to rad using the internationally-agreed conversion factor - the bridge between metric and Imperial marine units.
- Demurrage / Despatch
Demurrage charge for laytime exceeded, or despatch credit for laytime saved. Despatch typically half the demurrage rate.
- Demurrage time bar deadline
Compute the deadline by which a demurrage claim must be submitted.
- Density — kg/m³ to lb/USgal
Convert kg/m³ to lb/USgal. Precise factor for marine fuel engineering; sourced from NIST / ISO / MEPC reference tables.
- Density — lb/USgal to kg/m³
Convert lb/USgal to kg/m³. Precise factor for marine fuel engineering; sourced from NIST / ISO / MEPC reference tables.
- Density at 60 °F to API gravity
Convert kg/m³ to °API. Precise factor for marine fuel engineering; sourced from NIST / ISO / MEPC reference tables.
- Density g/ml to kg/m³
Convert g/ml to kg/m³ using the internationally-agreed conversion factor - the bridge between metric and Imperial marine units.
- Density g/ml to lb/USgal
Convert g/ml to lb/USgal using the internationally-agreed conversion factor - the bridge between metric and Imperial marine units.
- Density kg/m³ to g/ml
Convert kg/m³ to g/ml using the internationally-agreed conversion factor - the bridge between metric and Imperial marine units.
- Despatch: ATS vs AWTS comparison
Side-by-side despatch payable under all time saved vs all working time saved.
- Displacement Volume - Simpson's 1st Rule
Volumetric integration of the submerged hull through ordinates of section area × spacing.
- Distance by Vertical Sextant Angle
Distance off a landmark of known height using the sextant vertical angle. Classical pilotage method.
- Dittus–Boelter Convection
Nusselt number (and film coefficient h) for turbulent pipe flow: Nu = 0.023·Re^0.8·Pr^n (n = 0.4 heating, 0.3 cooling).
- DME - Core Properties
DME reference fuel card - NCV, density, CO₂ factor for energy-budget and emission calculations.
- DNV - BIS (Built for In-water Survey)
DNV class notation BIS - Built for In-water Survey. Eligibility + survey-scope check.
- DNV - BWM (Ballast water management)
DNV class notation BWM - Ballast water management. Eligibility + survey-scope check.
- DNV - COAT-PSPC(B) (Coating ballast tanks)
DNV class notation COAT-PSPC(B) - Coating ballast tanks. Eligibility + survey-scope check.
- DNV - DP(AAA) (Dynamic positioning)
DNV class notation DP(AAA) - Dynamic positioning. Eligibility + survey-scope check.
- DNV - E0 (Unattended machinery)
DNV class notation E0 - Unattended machinery. Eligibility + survey-scope check.
- DNV - FIRE (Extended fire protection)
DNV class notation FIRE - Extended fire protection. Eligibility + survey-scope check.
- DNV - HELDK (Helicopter operations)
DNV class notation HELDK - Helicopter operations. Eligibility + survey-scope check.
- DNV - ICE(1A) (Ice class 1A FSICR)
DNV class notation ICE(1A) - Ice class 1A FSICR. Eligibility + survey-scope check.
- DNV - NAUT-OSV (Bridge layout OSV)
DNV class notation NAUT-OSV - Bridge layout OSV. Eligibility + survey-scope check.
- DNV - NV (Naval ships)
DNV class notation NV - Naval ships. Eligibility + survey-scope check.
- DNV - Recyclable (Ship recycling)
DNV class notation Recyclable - Ship recycling. Eligibility + survey-scope check.
- DNV - REF (Refrigerated cargo)
DNV class notation REF - Refrigerated cargo. Eligibility + survey-scope check.
- DNV - Smart (Digital twin)
DNV class notation Smart - Digital twin. Eligibility + survey-scope check.
- DNV - VC (Vibration comfort)
DNV class notation VC - Vibration comfort. Eligibility + survey-scope check.
- DNV Battery Power Notation
Eligibility for DNV's Battery Power notation - hybrid ESS-equipped ships with battery as propulsion / peak-shaving source.
- DNV CLEAN / CLEAN DESIGN
Voluntary class notation from DNV for environmental performance beyond MARPOL.
- DNV Gas Ready Notation Levels
Readiness levels (Level 1–3) for converting a conventionally-fuelled ship to LNG/gas fuel in the future.
- DNV SILENT Notation Tiers
DNV SILENT tiers by application: SILENT-A (seismic), SILENT-F (fishery research), SILENT-R (scientific research), SILENT-E (environmental).
- Dock Water Allowance
Brackish water interpolation between FWA (fresh) and zero (sea).
- Docking Approach - Velocity Check
Check docking-approach velocity vs typical allowable for ship size - higher velocity risks fender / terminal damage.
- Doosan Doosan 16V250E - MCR per Cylinder
Doosan Doosan 16V250E engine card: 2400 kW per cylinder at 900 rpm, SFOC 192 g/kWh.
- Doosan Doosan 18V222LD - MCR per Cylinder
Doosan Doosan 18V222LD engine card: 2200 kW per cylinder at 900 rpm, SFOC 195 g/kWh.
- Doosan Doosan V180 - MCR per Cylinder
Doosan Doosan V180 baseline: 600 kW per cylinder at 1800 rpm, SFOC 195 g/kWh. Compute MCR + fuel for given cylinder count.
- Double Bottom Height
Minimum double-bottom height per SOLAS II-1 Reg 9: greater of B/15 or 760 mm, up to 2 m.
- DP - Thrust Capability Curve
Available thrust envelope for DP station-keeping given number of thrusters and worst-case single-failure scenario.
- DP Class 2 - Failure Envelope Capacity
DP Class 2 post-failure capability envelope - wind + current worst-case envelope after single fault per IMCA M140.
- DP FMEA - Single-Fault Post Capability
DP Class 2/3 single-fault post-capability check - verify that after any single failure the vessel still holds position in the environmental envelope.
- DP Station-Keeping - Footprint Radius
DP station-keeping footprint radius under a given environmental load, based on worst-case single-failure capability - the practical output of IMCA M140 analysis.
- DP Station-Keeping Footprint
DP-operated vessel's station-keeping circle radius under environmental load, per IMCA M103 footprint test.
- Draft Change from Density Change
Mean-draft change when entering water of different density - the core FWA / DWA relation, scaled for any density delta.
- Draft Change with Water Density
Wall-sided draft scaling with water density; ship sinks when density drops.
- Dredger Fuel & CO₂
Trailing-suction hopper dredgers (TSHD) and cutter-suction dredgers (CSD). Outside CII scope; benchmarked per m³ of material dredged.
- DRI - Passivation Requirement
Direct-Reduced Iron passivation check per IMSBC - (A, B, C) grade determines inerting / cooling requirement.
- Drill String - Hook Load
Drillstring hook-load calculation - weight of drill pipe + collars × buoyancy factor.
- Drilling Mud - Formation Pressure Balance
Mud density needed to balance formation pressure - mud hydrostatic > formation pressure + safety margin.
- Drillship Fuel & CO₂
Offshore drillships. Outside CII scope; benchmarked on per-day and per-1,000-ft drilled intensity.
- Dry-docking Cost & Frequency
Lifetime cost of scheduled dry-docking across an asset's trading life.
- Drydock - Day-Rate Cost
Drydock day-rate cost estimate - yard occupation fee + crew + steel + paint for a typical 15-year special survey.
- Drydock Block - Load per Block
Line-loading on keel blocks during docking for a ship of given displacement and LBP - screens whether blocks / cribbing design is adequate.
- Dubai (Jebel Ali) (AE) - Port Card
Dubai (Jebel Ali), AE - annual throughput ~180,000 TEU, max draft 17 m. Middle East hub.
- Duqm (OM) - Port Card
Duqm, OM - annual throughput ~40,000 TEU, max draft 18 m. Oman Arabian Sea.
- Durban (ZA) - Port Card
Durban, ZA - annual throughput ~110,000 TEU, max draft 16 m. South Africa East.
- Dynamic viscosity — Pa·s to centipoise
Convert Pa·s to cP. Precise factor for marine fuel engineering; sourced from NIST / ISO / MEPC reference tables.
- Dynamical Stability - Area under GZ
Dynamical stability (energy reserve) at an angle is Δ × area under GZ curve - the energy available to resist a gust or heeling impulse.
- e-Methanol - Core Properties
e-Methanol reference fuel card - NCV, density, CO₂ factor for energy-budget and emission calculations.
- Earth Fault - Leakage Current
Earth-fault leakage current for marine IT (isolated) distribution - the basis for alarm-setting on insulation-monitoring devices.
- ECA Fuel-Cost Premium
For a ship that switches between high-sulphur HFO outside Emission Control Areas (ECAs) and ECA-compliant 0.10% sulphur fuel (typically MGO) inside ECAs, the annual fuel-cost premium relative to HFO-only operation is determined by the ECA f
- ECDIS - Chart Update Interval
Verify ECDIS chart & ENC last-update status.
- Economic Order Quantity (EOQ)
EOQ = √(2·D·K / h) - order-size that minimises total ordering + holding cost for a spare.
- EEBD Duration - SOLAS II-2 Check
Check Emergency Escape Breathing Device (EEBD) service duration against SOLAS II-2 Reg. 13.4 minimum 10 min capacity at moderate activity.
- EEDI Attained (MEPC.328(76))
The Energy Efficiency Design Index is the design-phase carbon-intensity metric for new ships under MARPOL Annex VI. It pairs with CII on the operational side.
- EEDI fcᵤbᵢc - Cubic Capacity Correction
Applies to chemical tankers with parcel-carrier arrangements where cargo-volume-to-DWT ratio exceeds 1.7.
- EEDI fᵥˢᵉ - Voluntary Structural Enhancement
- EEDI Ice-class Correction (fⱼ)
- EEDI Innovative-Technology Credit (MEPC.1/Circ.815)
Credit subtracted from the EEDI numerator:
- EEDI Phase Factor
- EEDI Reference Line
- EEDI Required (MEPC.328(76))
- EEOI - Energy Efficiency Operational Indicator
Cargo-work-based CO₂ intensity per MEPC.1/Circ.684 - the oldest of the IMO operational intensity metrics and still used where actual cargo utilisation matters more than nominal capacity.
- EEXI Attained (MEPC.328(76))
The existing-ship analogue of EEDI. Same formula, but the reference speed V_ref is derived at 75 % of the limited engine power (via EPL or ShaPoLi), which tightens the denominator and forces older ships into compliance without a full retrof
- EEXI Required (MEPC.328(76))
- EGR Rate for Tier III Compliance
Approximate Exhaust Gas Recirculation rate required to reduce engine-out NOx to Tier III limit without urea.
- Embodied CO₂ of Shipbuilding
Cradle-to-gate embodied CO₂ for a new ship's hull and machinery.
- Emergency Fire Pump - SOLAS Requirement
Emergency fire-pump capacity per SOLAS II-2 Reg. 10 - independent of main switchboard, capable of providing two hydrants at regulation pressure.
- Encounter Frequency
Wave-encounter frequency seen by a moving ship: ω_e = ω − (ω²·V·cos μ)/g.
- Encounter Spectrum - Peak Frequency
Peak encounter frequency ω_e-peak for a ship at speed V in seas of peak frequency ω_p, heading μ - basis for heading-optimisation to avoid resonance.
- End-of-Life Recycling GHG
GHG balance of ship recycling - tow-fuel, dismantling energy, and the scrap-steel credit that displaces virgin blast-furnace steel.
- Energy density — electrical to thermal per volume
Convert kWh/m³ to MJ/m³. Precise factor for marine energy engineering; sourced from NIST / ISO / MEPC reference tables.
- Engine - CO₂ per kWh
CO₂ emission per kWh of engine output from SFOC and fuel CO₂ factor.
- Engine - Combustion Air Flow
Combustion air mass flow from engine power and excess-air ratio - basis for T/C + intake design.
- Engine - HFO vs LSMGO Cost Break-even
Break-even bunker-price difference where HFO + scrubber becomes cheaper than LSMGO - the retrofit economics.
- Engine - ISO 3046 MCR Derating
Engine MCR derating for non-standard ambient per ISO 3046 - inlet T, pressure, humidity.
- Engine - Pcomp vs Pmax Ratio
Ratio of peak firing pressure (Pmax) to compression pressure (Pcomp) - the simplest indicator of injection timing quality on a slow-speed 2-stroke.
- Engine - Thermal Efficiency
Brake thermal efficiency from SFOC and fuel NCV - ~50 % typical for slow-speed 2-stroke, 44 % for medium-speed 4-stroke.
- Engine BMEP - From Output Data
Brake Mean Effective Pressure from engine power, displacement, and speed - the primary engine-load benchmark.
- Engine Intake - Pressure Loss Limit
Engine-intake total pressure loss limit - ~35 mmWC alarm, 50 mmWC stop. Fouled filter / silencer reduces engine output.
- Engine LO Consumption - Rate Check
Main-engine lube-oil consumption rate vs shop-test baseline - trending identifies liner wear, fuel dilution or ring sealing issues.
- Engine Room - Ventilation Flow
Engine-room ventilation flow sized for combustion air + ambient cooling.
- Engine Room UMS / E0 - Criteria Check
UMS / E0 class notation criteria check per IACS UR M10 - unattended machinery space operation for 24 h+.
- Engine Sludge - Generation Rate
Engine-sludge generation rate from fuel oil + separator - basis for sludge tank sizing.
- Environmental Ship Index (ESI)
Voluntary 0–100 index covering NOx, SOx, CO₂ and shore-power performance; used by 50+ ports to award port-fee rebates.
- EPIRB - Coverage Check
406 MHz EPIRB carriage + float-free arrangement check per SOLAS IV Reg. 7.1.6 - mandatory on ships ≥ 300 GT.
- EPL - Engine Power Limitation
Attained EEDI/EEXI scales as $P^{2/3}$ (numerator linear in P; $V_\text{ref}$ scales as $P^{1/3}$). Solve:
- EPL Required MCR Reduction
For a ship subject to MARPOL Annex VI Regulation 25 (EEXI), Engine Power Limitation (EPL) under MEPC.335(76) or Shaft Power Limitation (ShaPoLi) under MEPC.357(78) is the standard compliance mechanism when technical or operational measures
- Equipment Number (IACS UR A1)
Anchor + chain sizing starts from the Equipment Number. IACS UR A1 combines displacement, side projected area and tier-level superstructure areas.
- Equivalent Evaporation
'From-and-at 100 °C' evaporation - the canonical boiler capacity rating. m_eq = m·(h_g − h_fw)/2257.
- Escort Tug - Operating Speed Window
Operating-speed window of an escort tug based on rudder-direct / indirect assist mode - the governance of escort missions for laden tankers.
- ESI - Environmental Ship Index
Environmental Ship Index from NOx, SOx, CO₂ and OPS capability - major ports give port-due discounts for high ESI.
- Estimated Cetane Number (ISO 8217 Annex)
Annex E of ISO 8217 - cetane-number proxy for ultra-low-sulphur distillates (DMA, DMB, DFA, DMZ) when the CFR engine cetane test is not available.
- ETA at Pilot Station - Basic Calc
Estimated Time of Arrival at the pilot station given remaining distance and current speed over ground - the basic sailing-plan building block.
- Ethanol - Tanker Segregation
Ethanol / alcohol tanker segregation from other cargoes per IBC Code Ch. 17 and USCG compatibility chart - water-miscible, foam-breaking hazard.
- EU ETS - Allowance Surrender Schedule
EU ETS allowance surrender deadline - 30 September each year for the previous year's verified emissions.
- EU ETS - Annual Allowance Cost
Annual EU-ETS allowance cost for shipping based on EU-linked CO₂ emissions, phase-in factor, and current EUA price.
- EU ETS EUA Liability (Directive (EU) 2023/959)
Annual EU Allowances (EUAs) a ship must surrender.
- EU ETS Phase-in
- EU ETS Scope Factor
- EU MRV - Annual Report Scope
EU MRV 2015/757 reporting scope - all voyages into, between and out of EU ports for ships > 5 000 GT.
- EU MRV Emissions Report
- EU MRV to EU ETS Allowance Crosswalk
The EU ETS Maritime regime (Directive (EU) 2023/959, in force 1 January 2024) requires shipping companies to surrender EU Allowances (EUAs) for emissions reported under the EU MRV Regulation (Reg (EU) 2015/757 as amended by Reg (EU) 2023/95
- EU Ship Recycling - Approved Yard Check
EU Ship Recycling Regulation 1257/2013 - EU-flag ships must be recycled at an EU-approved yard in the European List.
- Ex-Meridian Latitude
Latitude from a sun altitude taken near (but not exactly at) meridian passage. Handy when cloud closes in at LAN.
- Excess Air Factor λ from Exhaust O₂
Back-calculate λ = AFR / AFR_stoich from measured exhaust-gas oxygen percentage.
- Exhaust-Gas Boiler - Fouling Check
Exhaust-gas economiser fouling detection - pressure-drop increase + feedwater temp drop.
- Exhaust-to-Intake Temperature Ratio
Ratio of exhaust-gas to charge-air temperature - a sensitive indicator of cylinder fuel balance, valve timing and cooler performance.
- Fahrenheit to Celsius
Convert °F to °C using the internationally-agreed conversion factor - the bridge between metric and Imperial marine units.
- Fahrenheit to Kelvin
Convert °F to K. Precise factor for marine general engineering; sourced from NIST / ISO / MEPC reference tables.
- Fan Pressure Rise & Power
Static, velocity, total pressure and input kW for a marine ventilation / engine-room-supply fan.
- Fathoms to Metres
Convert fath to m using the internationally-agreed conversion factor - the bridge between metric and Imperial marine units.
- Feet to Metres
Convert ft to m using the internationally-agreed conversion factor - the bridge between metric and Imperial marine units.
- Felixstowe (GB) - Port Card
Felixstowe, GB - annual throughput ~100,000 TEU, max draft 14 m. UK largest container.
- Fender Reaction at Deflection
Peak reaction force from a fender's reaction-deflection curve for a given energy absorption.
- Fillet Weld - Throat Thickness Rule
Required fillet-weld leg length for a double-continuous weld on shell/bulkhead stiffeners per IACS UR W7 / class rule factor of parent-plate thickness.
- Filter Smoke Number → Black Carbon
Convert an FSN (Bosch) reading to mass-concentration black carbon in exhaust, per IMO's correlation function.
- Fin Efficiency
Efficiency of a straight fin of uniform cross-section: η_fin = tanh(m·L) / (m·L).
- Finnish-Swedish Ice Class (IA Super / IA / IB / IC)
Minimum machinery output per FSICR 2021 for Baltic winter operation: P_min = K·(Δ + D_k)^(2/3).
- Fire Main Diameter (SOLAS II-2)
Minimum fire main internal diameter per SOLAS II-2 Reg 10: d = 25 + 1.68·√(L·(B+D)).
- Fire Nozzle - Required Discharge
Nozzle discharge Q from orifice area, pressure and coefficient of discharge - sizing for portable fire hose and monitor nozzles.
- Fire Protection - SOLAS Class A/B/C
SOLAS II-2 bulkhead fire-protection class A, B, C - insulation duration vs adjacent space category.
- Fire Pump - Priming Time
Emergency fire pump priming / start time - must deliver water in ≤ 45 seconds per SOLAS II-2 Reg. 10.
- Fire Pump Capacity (SOLAS)
Minimum fire pump capacity per SOLAS II-2 Reg 10: Q = (0.15·√(L·(B+D)) + 2.25)², capped at 180 m³/h.
- Fire-Main - Pressure & Flow Check
Fire-main hydraulic check per SOLAS II-2 Reg. 10 - minimum pressure 0.27 N/mm² at any two hydrants and jet throw from nozzle.
- Flag State - Australia (AU)
Australia (AU) shipping registry: ~280 thousand GT registered. AU national.
- Flag State - Bahamas (BS)
Bahamas (BS) shipping registry: ~2,000 thousand GT registered. Commonwealth open.
- Flag State - Belgium (BE)
Belgium (BE) shipping registry: ~750 thousand GT registered. EU national.
- Flag State - Brazil (BR)
Brazil (BR) shipping registry: ~320 thousand GT registered. Brazilian national.
- Flag State - Canada (CA)
Canada (CA) shipping registry: ~230 thousand GT registered. Canadian.
- Flag State - Chile (CL)
Chile (CL) shipping registry: ~140 thousand GT registered. Chilean.
- Flag State - China (CN)
China (CN) shipping registry: ~2,500 thousand GT registered. Domestic + offshore PRC.
- Flag State - Croatia (HR)
Croatia (HR) shipping registry: ~130 thousand GT registered. EU national.
- Flag State - Cyprus (CY)
Cyprus (CY) shipping registry: ~1,500 thousand GT registered. EU flag - open.
- Flag State - Denmark (DIS) (DK)
Denmark (DIS) (DK) shipping registry: ~1,100 thousand GT registered. Danish International.
- Flag State - Egypt (EG)
Egypt (EG) shipping registry: ~170 thousand GT registered. Egyptian.
- Flag State - Estonia (EE)
Estonia (EE) shipping registry: ~120 thousand GT registered. EU national - tonnage tax.
- Flag State - France (FR)
France (FR) shipping registry: ~650 thousand GT registered. French national.
- Flag State - Germany (DE)
Germany (DE) shipping registry: ~900 thousand GT registered. German national + GIS.
- Flag State - Greece (GR)
Greece (GR) shipping registry: ~2,400 thousand GT registered. Owners prefer own flag.
- Flag State - Hong Kong SAR (HK)
Hong Kong SAR (HK) shipping registry: ~4,200 thousand GT registered. Chinese flag.
- Flag State - IMSAS Audit
IMO Member State Audit Scheme (IMSAS) cycle - mandatory since 2016, 7-year interval for flag states.
- Flag State - India (IN)
India (IN) shipping registry: ~410 thousand GT registered. Indian register.
- Flag State - Indonesia (ID)
Indonesia (ID) shipping registry: ~520 thousand GT registered. Domestic register.
- Flag State - Iran (IR)
Iran (IR) shipping registry: ~300 thousand GT registered. NITC.
- Flag State - Isle of Man (IM)
Isle of Man (IM) shipping registry: ~1,250 thousand GT registered. British-affiliated.
- Flag State - Italy (IT)
Italy (IT) shipping registry: ~1,100 thousand GT registered. EU national.
- Flag State - Japan (JP)
Japan (JP) shipping registry: ~1,400 thousand GT registered. Japanese national.
- Flag State - Korea, Republic of (KR)
Korea, Republic of (KR) shipping registry: ~1,050 thousand GT registered. Korean national.
- Flag State - Liberia (LR)
Liberia (LR) shipping registry: ~5,400 thousand GT registered. Open registry - second largest.
- Flag State - Malaysia (MY)
Malaysia (MY) shipping registry: ~350 thousand GT registered. Malaysian.
- Flag State - Malta (MT)
Malta (MT) shipping registry: ~2,600 thousand GT registered. EU flag - open register.
- Flag State - Marshall Islands (MH)
Marshall Islands (MH) shipping registry: ~5,200 thousand GT registered. Open registry - offshore friendly.
- Flag State - Mexico (MX)
Mexico (MX) shipping registry: ~220 thousand GT registered. Mexican.
- Flag State - Morocco (MA)
Morocco (MA) shipping registry: ~180 thousand GT registered. Moroccan.
- Flag State - Netherlands (NL)
Netherlands (NL) shipping registry: ~750 thousand GT registered. EU national.
- Flag State - Nigeria (NG)
Nigeria (NG) shipping registry: ~150 thousand GT registered. Nigerian.
- Flag State - Norway (NIS) (NO)
Norway (NIS) (NO) shipping registry: ~1,200 thousand GT registered. Norwegian International.
- Flag State - Panama (PA)
Panama (PA) shipping registry: ~8,600 thousand GT registered. Open registry - largest by GT.
- Flag State - Philippines (PH)
Philippines (PH) shipping registry: ~470 thousand GT registered. Domestic.
- Flag State - Portugal (MAR) (PT)
Portugal (MAR) (PT) shipping registry: ~580 thousand GT registered. Madeira Int'l.
- Flag State - Russia (RU)
Russia (RU) shipping registry: ~550 thousand GT registered. RS class.
- Flag State - Saudi Arabia (SA)
Saudi Arabia (SA) shipping registry: ~440 thousand GT registered. Saudi national.
- Flag State - Singapore (SG)
Singapore (SG) shipping registry: ~2,900 thousand GT registered. Asian hub flag.
- Flag State - South Africa (ZA)
South Africa (ZA) shipping registry: ~250 thousand GT registered. SA national.
- Flag State - Spain (ES)
Spain (ES) shipping registry: ~210 thousand GT registered. EU national.
- Flag State - Sri Lanka (LK)
Sri Lanka (LK) shipping registry: ~190 thousand GT registered. Sri Lankan.
- Flag State - Taiwan (TW)
Taiwan (TW) shipping registry: ~600 thousand GT registered. Chinese Taipei.
- Flag State - Thailand (TH)
Thailand (TH) shipping registry: ~160 thousand GT registered. Thai.
- Flag State - Turkey (TR)
Turkey (TR) shipping registry: ~610 thousand GT registered. Turkish flag.
- Flag State - UAE (AE)
UAE (AE) shipping registry: ~290 thousand GT registered. UAE national.
- Flag State - UK (GB)
UK (GB) shipping registry: ~720 thousand GT registered. British national.
- Flag State - Ukraine (UA)
Ukraine (UA) shipping registry: ~110 thousand GT registered. Ukrainian.
- Flag State - USA (US)
USA (US) shipping registry: ~370 thousand GT registered. US national.
- Flag State - Vanuatu (VU)
Vanuatu (VU) shipping registry: ~380 thousand GT registered. Open register.
- Flag State - Vietnam (VN)
Vietnam (VN) shipping registry: ~100 thousand GT registered. Vietnamese.
- Flame Arrester - Gap Size
Flame arrester quench-gap size vs maximum experimental safe gap (MESG) - prevents flash-back from ignited vapours.
- Flash Point Compliance Check (MARPOL)
Verify bunker flash point against the MARPOL Annex I Regulation 18 minimum (60 °C closed-cup) for fuel-oil safety.
- Flettner Rotor - Drive Power
Electric motor input power to spin a Flettner rotor at the design RPM - 1–3 % of generated thrust energy.
- Flettner Rotor - Thrust Estimate
Lift-based thrust of a Flettner rotor given rotor size, rotation rate, and relative wind - the Magnus-effect calc used for sizing Rotorsail.
- Flettner Rotor Wind Assist
Rotating-cylinder wind-assist thrust estimation. Real systems publish route-integrated fuel savings rather than spot-power numbers; use this for back-of-envelope sizing.
- Floodable Length Screen
Rough floodable-length estimate from freeboard and permeability for one-compartment-standard screening.
- Flooding Time - Simple Orifice Estimate
Flooding time through a simple orifice - √(2gh) exit velocity + compartment volume.
- Flotel / Accommodation Unit Fuel & CO₂
Accommodation and support units hosting offshore crews during platform campaigns. CII-exempt; daily fuel-per-POB (person on board) benchmark.
- Flow — L/min to US gpm
Convert l/min to USgpm. Precise factor for marine pumps engineering; sourced from NIST / ISO / MEPC reference tables.
- Flow — m³/h to barrels per day
Convert m³/h to bbl/day. Precise factor for marine cargo engineering; sourced from NIST / ISO / MEPC reference tables.
- Flow — US gallons per minute to L/min
Convert USgpm to l/min. Precise factor for marine pumps engineering; sourced from NIST / ISO / MEPC reference tables.
- FM-200 - Design Concentration
FM-200 (HFC-227ea) design concentration for Class A surface fires - 7 %, discharge in 10 s.
- Foam Concentrate for Tanker Deck
Foam concentrate quantity for a tanker deck fixed foam system per SOLAS II-2 Reg 10.8 / FSS Ch.14: 0.6 L/min/m² × 20 min.
- FONAR - Fuel Oil Non-Availability
FONAR (Fuel Oil Non-Availability Report) filing procedure when compliant fuel unavailable per MARPOL Annex VI Reg. 18.2.
- Form Factor (Prohaska)
Three-dimensional extrapolation form factor (1+k) derived from low-Fn resistance data - the ITTC-78 correction that separates frictional from residual resistance.
- Formaldehyde / HC - Dual-fuel engines
- Forward Freight Agreement Settlement
FFA cash-settled P/L: (Settlement index − Strike) × days × lot size.
- FPSO Fuel & CO₂
Floating Production Storage and Offloading units. CII-exempt; per-barrel-produced intensity is the industry benchmark (IOGP Scope-1 upstream indicator).
- Free Surface Correction
Single slack-tank FSC for a rectangular tank.
- Freeport (Bahamas) (BS) - Port Card
Freeport (Bahamas), BS - annual throughput ~80,000 TEU, max draft 14 m. Caribbean.
- Fremantle (AU) - Port Card
Fremantle, AU - annual throughput ~70,000 TEU, max draft 14 m. West Aus.
- Fresh Water - Daily Demand Estimate
Daily fresh-water demand by crew + technical uses - basis for sizing the fresh-water generator duty and the holding-tank capacity.
- Fresh Water Allowance
Loadline draft shift for sea water ↔ fresh water per ICLL 1966.
- Fresh Water Generator - Capacity
Fresh-water-generator distillate output from jacket-water heat available and specific distillate energy.
- Fresh Water Generator Capacity
Evaporator capacity Q = (Q_jacket × η)/h_fg - vacuum-flash generator using main-engine jacket heat.
- Fresh-Water & Dock-Water Allowance
Fresh-Water Allowance (FWA) and Dock-Water Allowance (DWA) per Load Line Convention - the standard loaded-draft correction when crossing densities.
- Friction Mean Effective Pressure (FMEP)
FMEP = IMEP − BMEP - the 'lost' pressure to friction. Rising FMEP = bearing/ring wear.
- Froude Number
Dimensionless speed ratio that drives wave-making resistance behaviour.
- Froude Number - Hull Speed Regime
Froude number Fn = V/√(g·L) - the dimensionless speed index that determines whether a hull is in displacement, semi-displacement or planing regime.
- Froude Speed Scaling - Model to Ship
Corresponding ship speed for a given model speed at Froude similarity - V_s = V_m · √(L_s/L_m).
- FSICR - Ice Class Ice Thickness Limits
Design ice thickness per Finnish-Swedish Ice Class Rules (IA Super, IA, IB, IC) - the values used for ice-load calculation.
- FSICR - Minimum Propulsion Power
Minimum propulsion power (MCR) for a given ice class and ship size per FSICR formulation, based on displacement and waterline beam.
- Fuel Cell Power
Fuel consumption and emissions from a PEM or SOFC marine fuel cell running hydrogen, ammonia or methanol.
- Fuel Cf conversion factors (MEPC.364(79))
The $C_f$ factor is the mass of CO₂ emitted per mass of fuel burned, tank-to-wake. It is used in EEDI, EEXI, CII, and EU ETS carbon accounting. Values come from MEPC.364(79) Table 1.
- Fuel flow — per day to per hour
Convert t/day to kg/h. Precise factor for marine fuel engineering; sourced from NIST / ISO / MEPC reference tables.
- Fuel flow — per hour to per day
Convert kg/h to t/day. Precise factor for marine fuel engineering; sourced from NIST / ISO / MEPC reference tables.
- Fuel Pump - Delivery Stroke
Effective fuel-pump delivery stroke for a 2-stroke slow-speed engine given cylinder SFC, rpm and delivery stroke at MCR.
- Fuel Total Cost of Ownership
All-in per-GJ cost of delivered fuel energy, including bunker and EU ETS overlay.
- fuel wtw ammonia
See the live calculator for pathway-specific WtW intensities. Factors pulled from shared/fuel-factors.json (FuelEU Maritime Annex II + industry defaults).
- fuel wtw efuel
See the live calculator for pathway-specific WtW intensities. Factors pulled from shared/fuel-factors.json (FuelEU Maritime Annex II + industry defaults).
- fuel wtw fame
See the live calculator for pathway-specific WtW intensities. Factors pulled from shared/fuel-factors.json (FuelEU Maritime Annex II + industry defaults).
- fuel wtw hfo
Fuel factors from shared/fuel-factors.json (IMO MEPC.364(79) Cf + FuelEU Maritime Annex II WtW intensities).
- fuel wtw hvo
See the live calculator for pathway-specific WtW intensities. Factors pulled from shared/fuel-factors.json (FuelEU Maritime Annex II + industry defaults).
- fuel wtw hydrogen
See the live calculator for pathway-specific WtW intensities. Factors pulled from shared/fuel-factors.json (FuelEU Maritime Annex II + industry defaults).
- fuel wtw lng
Fuel factors from shared/fuel-factors.json (IMO MEPC.364(79) Cf + FuelEU Maritime Annex II WtW intensities).
- fuel wtw lpg
Fuel factors from shared/fuel-factors.json (IMO MEPC.364(79) Cf + FuelEU Maritime Annex II WtW intensities).
- fuel wtw methanol
See the live calculator for pathway-specific WtW intensities. Factors pulled from shared/fuel-factors.json (FuelEU Maritime Annex II + industry defaults).
- fuel wtw mgo
Fuel factors from shared/fuel-factors.json (IMO MEPC.364(79) Cf + FuelEU Maritime Annex II WtW intensities).
- fuel wtw nuclear
See the live calculator for pathway-specific WtW intensities. Factors pulled from shared/fuel-factors.json (FuelEU Maritime Annex II + industry defaults).
- fuel wtw uio lng
See the live calculator for pathway-specific WtW intensities. Factors pulled from shared/fuel-factors.json (FuelEU Maritime Annex II + industry defaults).
- fuel wtw ulend
Fuel factors from shared/fuel-factors.json (IMO MEPC.364(79) Cf + FuelEU Maritime Annex II WtW intensities).
- fuel wtw vlsfo
Fuel factors from shared/fuel-factors.json (IMO MEPC.364(79) Cf + FuelEU Maritime Annex II WtW intensities).
- FuelEU - Pooling Surplus Transfer
FuelEU Maritime pooling - surplus from one vessel transferred to another in the same company to meet regulation.
- FuelEU - RFNBO Double Count
FuelEU Maritime rewards RFNBO (Renewable Fuels of Non-Biological Origin) with 2× multiplier until 2033 - accelerates e-fuel uptake.
- FuelEU Compliance Balance
Annual surplus (positive) or deficit (negative) of attained vs target GHG intensity.
- FuelEU GHG Intensity (Regulation (EU) 2023/1805)
Annual well-to-wake GHG intensity of the energy a ship consumes vs the declining FuelEU target.
- FuelEU Maritime - GHG Penalty Cost
FuelEU Maritime GHG penalty cost for exceeding the annual GHG-intensity limit - €2400 per tonne VLSFO-equivalent of excess intensity.
- FuelEU OPS Requirement
From 2030, container and passenger ships must use Onshore Power Supply (or a zero-emission equivalent) while berthed for ≥ 2 hours at TEN-T core EU ports.
- FuelEU Penalty
Monetary penalty on a negative FuelEU compliance balance.
- FuelEU Pooling
Aggregate compliance balances across multiple ships into a single pool-level balance.
- FuelEU RFNBO 2× Multiplier
Temporary incentive: energy from qualifying RFNBOs counts double in the FuelEU numerator during 2025–2033.
- Galley Exhaust - Capture Velocity
Galley-hood capture velocity and exhaust rate per ASHRAE Commercial Kitchen handbook - prevents grease entering the duct.
- Gas Carrier - Tank Pressure Arm Relief
Pressure-relief discharge flow for a gas-carrier tank during fire exposure per IGC Code Ch. 8.
- General Average - York-Antwerp Contribution
Cargo contribution to general average under York-Antwerp Rules - proportional to saved value of cargo vs ship.
- General Cargo Ship CII
MEPC.337 general-cargo reference line, steepest $c$ exponent in the regime.
- Generator - P vs Q Loading
Generator active/reactive power split - maintains PF ≥ 0.8 lagging for export; voltage regulation adjusts Q.
- Generator Load Sharing - Droop
Real-power split between two generators in droop mode when the grid frequency shifts.
- Generator Paralleling - Frequency Δ Check
Check frequency and voltage difference vs the running bus before closing breaker - the classic paralleling window per IEC 60092-301 / IEEE 45.
- Genoa (IT) - Port Card
Genoa, IT - annual throughput ~110,000 TEU, max draft 15 m. North West Italy.
- Genset - Synchronisation Window
Genset paralleling synchronisation window - frequency, voltage, phase sequence, and phase angle within specified tolerances.
- GFI Attained - WtW Intensity from Fuel Mix
The Attained GHG Fuel Intensity is the well-to-wake GHG intensity of the fuel mix consumed by a ship in the reporting calendar year, expressed in g CO₂-equivalent per megajoule of fuel energy on a lower-heating-value basis. It is the input
- GFI Compliance - IMO Net-Zero Framework
The IMO Net-Zero Framework, approved at MEPC 83 in April 2025, requires every ship of 5,000 GT and above engaged on international voyages to achieve an Attained GHG Fuel Intensity (GFI) at or below an annually-tightening Required GFI from 1
- Gibraltar (GI) - Port Card
Gibraltar, GI - annual throughput ~80,000 TEU, max draft 11 m. Bunker hub.
- Gigajoules to MWh
Convert GJ to MWh using the internationally-agreed conversion factor - the bridge between metric and Imperial marine units.
- Gigawatt-hours to terajoules
Convert GWh to TJ. Precise factor for marine energy engineering; sourced from NIST / ISO / MEPC reference tables.
- GM Change from Weight Shift
Change in GM when a weight is shifted vertically on board - GG' = w·d/Δ then ΔGM = −GG'.
- GM from Inclining Experiment
Compute metacentric height from a controlled weight shift and pendulum deflection - the lightship inclining test at delivery and every 5 years.
- GM from Rolling Period
Estimate effective GM from an observed natural rolling period using the Weiss/IMO formula - no inclining test required.
- GMDSS - Sea Area Coverage Check
GMDSS sea-area (A1 / A2 / A3 / A4) determination from voyage distance from coast - drives radio-equipment carriage.
- Governor Droop - Speed vs Load
Engine speed drop with load under a given governor droop setting - baseline for generator paralleling and load-sharing.
- Grain - Cargo Displacement Volume
Grain loading capacity from stowage factor (SF) and hold volume - the basis for grain loading plans.
- Grain Heeling - Volumetric Heeling Moment
Volumetric grain-heeling moment for a partly-filled bulk-carrier hold per International Grain Code §3 - the 25° heel criterion and residual-area check.
- Gray to Rad
Convert Gy to Rad. Precise factor for marine radiation engineering; sourced from NIST / ISO / MEPC reference tables.
- Great Circle vs Rhumb - Distance Comparison
Compare great-circle and rhumb-line distance between two points - the standard ocean-passage routing decision.
- Great-Circle Distance (Haversine)
Shortest-path distance and initial bearing between two lat/lon positions on the spherical earth.
- Great-Circle Vertex
Highest-latitude point (vertex) of a great-circle track - where the track runs true east-west. Napier's Rules of circular parts.
- Green Award
Five-section points certification from the Green Award Foundation.
- Green Methanol - LCA CO₂ Footprint
Well-to-wake CO₂eq for bio-methanol or e-methanol (PtL) - the FuelEU-compliant footprint that drives penalty and RFNBO credits.
- Green Water - Exceedance Frequency
Expected number of green-water events per hour based on freeboard and relative bow motion σ - sensitivity for hatch / bulwark design.
- Guangzhou (CN) - Port Card
Guangzhou, CN - annual throughput ~210,000 TEU, max draft 16 m. Pearl Delta.
- Gyro - Latitude Correction
Gyrocompass latitude error correction.
- GZ from KN Cross-Curve
Righting lever GZ at a given heel from the KN cross-curve value and current KG.
- Hague-Visby - Package Limitation
Hague-Visby package / kilogram limitation on carrier liability - lesser of 666.67 SDR / package or 2 SDR / kg.
- Haiphong (VN) - Port Card
Haiphong, VN - annual throughput ~80,000 TEU, max draft 13 m. North Vietnam.
- Halifax (CA) - Port Card
Halifax, CA - annual throughput ~90,000 TEU, max draft 18 m. Canadian East.
- Hamburg (DE) - Port Card
Hamburg, DE - annual throughput ~180,000 TEU, max draft 15 m. German hub.
- Hamrock-Dowson Film Thickness
Minimum EHL film thickness in elliptical point contact (rolling-element bearings): h_min / R = 3.63 · U^0.68 · G^0.49 · W^(-0.073) · (1 − e^(-0.68k)).
- Harbour / Escort Tug Fuel & CO₂
Harbour tugs and escort tugs - short, high-power bursts at berthing, long idle periods on station. Outside CII scope; per-job or per-operating-hour intensity.
- Harmonic Distortion - THD vs Rule Limit
Total Harmonic Distortion assessment vs class rule / IEC 61000 limits - typical 5 % voltage / 8 % current on marine distribution.
- Harmonic Filter - Capacitance Sizing
Passive harmonic filter capacitance sized for resonance at a specific harmonic order.
- Hatch Cover Deflection Limit (UR S21)
Maximum permissible mid-span deflection of a weather-deck hatch cover: L/200 per IACS UR S21.
- Hatch Cover Design Pressure (IACS UR S21A)
Design pressure head on weather-deck hatch covers by position along the hull.
- Hatch Cover Sealing Test Timing
Frequency and type of hatch-cover weathertightness tests per IACS UR Z7 and ship's Planned Maintenance System.
- Hazardous Area - IEC 60079 Zone Check
Classify equipment against the required Ex rating given the installation zone per IEC 60079-10-1 - tanker deck, pump-room, enclosed spaces around vents.
- Heat-transfer coefficient — Imperial to SI
Convert Btu/ft²·h·°F to W/m²·K. Precise factor for marine thermo engineering; sourced from NIST / ISO / MEPC reference tables.
- Heat-transfer coefficient — SI to Imperial
Convert W/m²·K to Btu/ft²·h·°F. Precise factor for marine thermo engineering; sourced from NIST / ISO / MEPC reference tables.
- Heat-transfer kcal SI equivalent
Convert kcal/m²·h·°C to W/m²·K. Precise factor for marine thermo engineering; sourced from NIST / ISO / MEPC reference tables.
- Heating Coil - Steam Consumption
Steam-consumption rate for cargo-heating coils - duty / (h_sat - h_condensate).
- Heave Compensator - Stroke Length
Active heave compensator stroke length from significant heave amplitude + safety margin.
- Heave RAO - Linear Approximation
Linear heave response amplitude operator (RAO) at a given wave frequency using Froude-Krylov + damping - preliminary motion estimate for design sea state.
- Heavy-Lift / Project Cargo Ship CII
HLVs fall under the MEPC.337 general-cargo reference. Operational profile includes DP positioning, ballasting, and crane power so the aux fuel share is unusually high.
- HFC-227ea Quantity (FM-200)
FM-200 / HFC-227ea agent quantity for total flooding from FSS Code Ch.5: 6.25–9 % v/v concentration.
- HFO (RMG 380) - Core Properties
HFO (RMG 380) reference fuel card - NCV, density, CO₂ factor for energy-budget and emission calculations.
- HFO (RMK 500) - Core Properties
HFO (RMK 500) reference fuel card - NCV, density, CO₂ factor for energy-budget and emission calculations.
- HFO Purifier - Throughput
HFO separator throughput from engine consumption + purifier efficiency - undersized purifier → poor fuel oil quality.
- HHI-HiMSEN Hyundai HiMSEN H21/32 - MCR per Cylinder
HHI-HiMSEN Hyundai HiMSEN H21/32 engine card: 1270 kW per cylinder at 720 rpm, SFOC 180 g/kWh.
- HHI-HiMSEN Hyundai HiMSEN H25/33 - MCR per Cylinder
HHI-HiMSEN Hyundai HiMSEN H25/33 engine card: 1620 kW per cylinder at 720 rpm, SFOC 180 g/kWh.
- HHV from LHV and Hydrogen Content
Higher calorific value (HHV) from lower calorific value + latent heat of water-vapour formed during combustion.
- HNS Convention 2010 - Hazardous Cargo Liability
HNS Convention 2010 Protocol - owner strict liability + Fund for damage from Hazardous & Noxious Substances.
- Ho Chi Minh (Cat Lai) (VN) - Port Card
Ho Chi Minh (Cat Lai), VN - annual throughput ~90,000 TEU, max draft 12 m. South Vietnam.
- Hollenbach Resistance
Hollenbach (1998) updated the Holtrop & Mennen regression with modern hull data, separating single- and twin-screw cases and giving better results for high-Cb container ships and ro-pax.
- Holtrop - Appendage Resistance
Appendage resistance R_APP from Holtrop-Mennen method - typically 3–8 % of bare-hull resistance for merchant ships with bilge keels, rudder, shaft brackets.
- Holtrop - Form Factor 1+k1
Form factor 1+k1 for frictional-resistance correction per Holtrop-Mennen regression - the first step in predicting still-water resistance from hull geometry.
- Holtrop - Transom Resistance
Transom-stern resistance component R_TR per Holtrop - accounts for wave-breaking at a wetted transom.
- Holtrop - Wave Resistance Estimate
Approximate wave-making resistance R_W at low Froude (Fn < 0.4) using Holtrop's regression simplification - the dominant resistance contribution in the hump region.
- Holtrop & Mennen Resistance
Empirical regression from Holtrop & Mennen (1982) with the 1984 re-analysis. Default early-design resistance method for most displacement hulls.
- Hong Kong (HK) - Port Card
Hong Kong, HK - annual throughput ~180,000 TEU, max draft 16 m. Transshipment.
- Hong Kong Convention - Recycling Plan
Hong Kong Convention (HKC 2009) pre-recycling requirements - Ship Recycling Plan (SRP) + Inventory of Hazardous Materials (IHM).
- Houston (US) - Port Card
Houston, US - annual throughput ~120,000 TEU, max draft 14 m. Gulf petroleum.
- HP-hour to kWh
Convert hp·h to kWh. Precise factor for marine engine engineering; sourced from NIST / ISO / MEPC reference tables.
- Hull & Machinery - Insurance Premium Estimate
Annual H&M insurance premium estimate from hull value, deductible and ship-type risk class - the basic Lloyd's quotation input.
- Hull Cleaning - ROI Estimate
Return-on-investment of a mid-docking hull cleaning - saves fuel via reduced hull roughness and fouling drag.
- Hull Cleaning Payback
Fuel, CO₂ and payback from an in-water hull clean and propeller polish.
- Hull Cleaning ROI
Payback of an in-water hull cleaning - days to recover cost via the fuel saved on the resistance reduction.
- Hull Efficiency η_H
η_H = (1 − t) / (1 − w). Usually 1.05–1.15 for single-screw full-form hulls - the wake gain outweighs thrust deduction.
- Hull Girder - Deck / Keel Stress
Longitudinal stress at deck and keel from hull-girder bending moment and midship section modulus - the first post-processing step after SWBM calculation.
- Hull Girder - First Yield Moment
First-yield bending moment of hull girder - minimum bending moment at which any fibre reaches yield, precursor to ultimate-strength M_u.
- Hull Performance - Speed Loss ISO 19030
Hull-performance deterioration estimate per ISO 19030-2 - average speed loss trended against reference period.
- Hull Roughness ΔCf (Townsin)
Increment of skin-friction coefficient from measured hull roughness (AHR) using the ITTC-78 Townsin formulation.
- Hull Wetted Surface - Taylor Estimate
Estimated wetted surface area of a merchant ship hull using Taylor's empirical formula - the input for ITTC C_F × ½ρV²S calculation.
- HVAC - Accommodation Cooling Load
Accommodation cooling-load estimate from transmission, solar, internal + ventilation gains - the chiller-sizing baseline.
- HVAC - Air Change Rate
Air-change rate (ACH) required for various marine spaces - engine room, accommodation, galley, battery room.
- HVAC - Dew Point Approximation
Dew point of moist air from ambient temperature and relative humidity using Magnus formula - the basis for condensation check.
- HVAC Cooling Load (Sum of Components)
Total sensible + latent cooling load - sum of solar gain, transmission, infiltration, occupants, lighting, equipment, fresh-air make-up.
- HVO (renewable diesel) - Core Properties
HVO (renewable diesel) reference fuel card - NCV, density, CO₂ factor for energy-budget and emission calculations.
- Hydraulic Accumulator - Gas Pre-charge Sizing
Accumulator pre-charge pressure and required volume - critical for surge suppression in deck-machinery hydraulic systems.
- Hydraulic Cylinder - Force from Pressure
Push / pull force of a hydraulic cylinder given working pressure, bore and rod diameter - the fundamental cylinder sizing equation.
- Hydraulic Cylinder Force
F = P × A - cylinder extend/retract force from pressure and piston area.
- Hydraulic Cylinder Velocity
v = Q / A - extend / retract velocity from pump flow and cylinder area.
- Hydraulic Pump - Required Shaft Power
Shaft power for a hydraulic pump delivering a given flow at a specific pressure - P = Q·p/η.
- Hydraulic Pump Power
Input kW required for a hydraulic pump delivering flow Q at pressure Δp.
- Hydrogen - Volumetric Energy Density
Volumetric energy density of hydrogen at various storage conditions - compressed, liquid, and cryogenic - compared to conventional marine fuels.
- Hydrogen (liq) - Core Properties
Hydrogen (liq) reference fuel card - NCV, density, CO₂ factor for energy-budget and emission calculations.
- IACS UR A2 - Emergency Towing SWL
Safe working load (SWL) of emergency towing arrangement fittings per IACS UR A2 - bollard and chock sized to at least 1.25 × expected towline break load.
- IACS UR E26 Cyber Resilience Screen
Checklist of the five pillars of IACS UR E26 (cyber resilience of ships): equipment identification, protection, attack detection, response, recovery.
- IACS UR E27 OT/IT Integration Screen
Checklist for the E27 onboard-system requirements: secure-by-design, authentication, patching, monitoring, supplier assurance.
- IACS UR G3 - Polar Class Power
IACS UR G3 minimum propulsion power for Polar Class (PC1 through PC7) vessels - replaces FSICR for Polar Code compliance.
- IACS UR L5 - Bulk Carrier Survey Interval
Next Enhanced Survey Programme (ESP) annual close-up survey interval for bulk carriers per IACS UR L5 - window and scope dependent on ship age and cargo-hold condition.
- IACS UR M12 - Scavenge space fire protection
IACS Unified Requirement M12 - Scavenge space fire protection. Covered by all member class societies.
- IACS UR M2 - Engine specification requirements
IACS Unified Requirement M2 - Engine specification requirements. Covered by all member class societies.
- IACS UR M21 - Crankcase explosion relief valves
IACS Unified Requirement M21 - Crankcase explosion relief valves. Covered by all member class societies.
- IACS UR M28 - Propeller pitch indicators
IACS Unified Requirement M28 - Propeller pitch indicators. Covered by all member class societies.
- IACS UR M3 - Astern power
IACS Unified Requirement M3 - Astern power. Covered by all member class societies.
- IACS UR M31 - Propulsion control signals
IACS Unified Requirement M31 - Propulsion control signals. Covered by all member class societies.
- IACS UR M35 - Piping systems
IACS Unified Requirement M35 - Piping systems. Covered by all member class societies.
- IACS UR M4 - Trial fuel oil requirement
IACS Unified Requirement M4 - Trial fuel oil requirement. Covered by all member class societies.
- IACS UR M40 - Cylinder & cooling water tests
IACS Unified Requirement M40 - Cylinder & cooling water tests. Covered by all member class societies.
- IACS UR M43 - Turbocharger Certification
Turbocharger certification category (A, B or C) per IACS UR M43 based on engine power served - drives the scope of type-test and containment requirements.
- IACS UR M44 - Monitoring heated fuel oil
IACS Unified Requirement M44 - Monitoring heated fuel oil. Covered by all member class societies.
- IACS UR M45 - Boiler safety valves
IACS Unified Requirement M45 - Boiler safety valves. Covered by all member class societies.
- IACS UR M46 - Main engine control fuel valve
IACS Unified Requirement M46 - Main engine control fuel valve. Covered by all member class societies.
- IACS UR M48 - Ambient reference conditions
IACS Unified Requirement M48 - Ambient reference conditions. Covered by all member class societies.
- IACS UR M5 - Protection for engine lubrication
IACS Unified Requirement M5 - Protection for engine lubrication. Covered by all member class societies.
- IACS UR M52 - Hydraulic governor oil
IACS Unified Requirement M52 - Hydraulic governor oil. Covered by all member class societies.
- IACS UR M57 - Cylinder cooling water piping
IACS Unified Requirement M57 - Cylinder cooling water piping. Covered by all member class societies.
- IACS UR M58 - Solid injection oil engine
IACS Unified Requirement M58 - Solid injection oil engine. Covered by all member class societies.
- IACS UR M59 - Automatic control for engine
IACS Unified Requirement M59 - Automatic control for engine. Covered by all member class societies.
- IACS UR M61 - Monitoring & alarms
IACS Unified Requirement M61 - Monitoring & alarms. Covered by all member class societies.
- IACS UR M64 - Environmental design conditions
IACS Unified Requirement M64 - Environmental design conditions. Covered by all member class societies.
- IACS UR M65 - Automatic filters
IACS Unified Requirement M65 - Automatic filters. Covered by all member class societies.
- IACS UR M66 - Type testing of diesel engines
IACS Unified Requirement M66 - Type testing of diesel engines. Covered by all member class societies.
- IACS UR M67 - Type tests - exhaust emissions
IACS Unified Requirement M67 - Type tests - exhaust emissions. Covered by all member class societies.
- IACS UR M68 - Intermediate and thrust shaft dim.
IACS Unified Requirement M68 - Intermediate and thrust shaft dim.. Covered by all member class societies.
- IACS UR M71 - Crankshaft Scantling Check
Crankshaft pin and journal diameter screening per IACS UR M71 - simplified minimum shaft formula used for scantling approval.
- IACS UR M72 - Dual fuel engine safety
IACS Unified Requirement M72 - Dual fuel engine safety. Covered by all member class societies.
- IACS UR P1 - Chemical composition
IACS Unified Requirement P1 - Chemical composition. Covered by all member class societies.
- IACS UR P2 - Mechanical properties
IACS Unified Requirement P2 - Mechanical properties. Covered by all member class societies.
- IACS UR S12 - Side structural requirements
IACS Unified Requirement S12 - Side structural requirements. Covered by all member class societies.
- IACS UR S14 - Containership end-bulkhead
IACS Unified Requirement S14 - Containership end-bulkhead. Covered by all member class societies.
- IACS UR S16 - Bulk Carrier Damaged BM Allowance
Bulk-carrier damaged-hull bending-moment allowance per IACS UR S16 - critical for cargo-hold flooded design.
- IACS UR S17 - Hatch cover load & bending
IACS Unified Requirement S17 - Hatch cover load & bending. Covered by all member class societies.
- IACS UR S18 - Stiffeners under dynamic loads
IACS Unified Requirement S18 - Stiffeners under dynamic loads. Covered by all member class societies.
- IACS UR S19 - Damage scenarios BC
IACS Unified Requirement S19 - Damage scenarios BC. Covered by all member class societies.
- IACS UR S2 - Definition of ship length L
IACS Unified Requirement S2 - Definition of ship length L. Covered by all member class societies.
- IACS UR S20 - Evaluation of scantlings
IACS Unified Requirement S20 - Evaluation of scantlings. Covered by all member class societies.
- IACS UR S22 - Hatch-cover end-panel
IACS Unified Requirement S22 - Hatch-cover end-panel. Covered by all member class societies.
- IACS UR S25 - Harmonised structural notations
IACS Unified Requirement S25 - Harmonised structural notations. Covered by all member class societies.
- IACS UR S26 - Hatch-Cover Design Pressure
Design pressure on weather-deck hatch covers for seagoing bulk carriers per IACS UR S21/S26 - position 1 or 2 - and required scantling check.
- IACS UR S27 - Bow Door / Inner Door Check
Bow / visor / side door design pressure per IACS UR S27 - critical for ro-ro passenger ships after Estonia (1994).
- IACS UR S28 - Bulkhead wash plates
IACS Unified Requirement S28 - Bulkhead wash plates. Covered by all member class societies.
- IACS UR S3 - Longitudinal strength check
IACS Unified Requirement S3 - Longitudinal strength check. Covered by all member class societies.
- IACS UR S31 - Renewal criteria hatch-covers
IACS Unified Requirement S31 - Renewal criteria hatch-covers. Covered by all member class societies.
- IACS UR S34 - Loading Manual Check
Screening check for UR S34 - the rule defining intact / damage loading conditions to be included in the ship's Loading Manual for bulk carriers.
- IACS UR S4 - Bulkheads
IACS Unified Requirement S4 - Bulkheads. Covered by all member class societies.
- IACS UR S7 - Hull girder deflections
IACS Unified Requirement S7 - Hull girder deflections. Covered by all member class societies.
- IACS UR S8 - Bow door requirements
IACS Unified Requirement S8 - Bow door requirements. Covered by all member class societies.
- IACS UR W14 - Welding brittle steels
IACS Unified Requirement W14 - Welding brittle steels. Covered by all member class societies.
- IACS UR W2 - Hull welding consumables
IACS Unified Requirement W2 - Hull welding consumables. Covered by all member class societies.
- IACS UR W21 - Electrodes for steel
IACS Unified Requirement W21 - Electrodes for steel. Covered by all member class societies.
- IACS UR W26 - Welding procedure qualification
IACS Unified Requirement W26 - Welding procedure qualification. Covered by all member class societies.
- IACS UR W27 - Welding Consumables Grade
Minimum welding-consumable grade (1Y, 2Y, 3Y, 4Y, 5Y) required to match a parent-steel grade per IACS UR W27 - the rule used by every class for procurement and WPS qualification.
- IACS UR W28 - Welding requirements tubulars
IACS Unified Requirement W28 - Welding requirements tubulars. Covered by all member class societies.
- IACS UR W3 - Welding consumable HT steel
IACS Unified Requirement W3 - Welding consumable HT steel. Covered by all member class societies.
- IACS UR W4 - Post-weld heat treatment
IACS Unified Requirement W4 - Post-weld heat treatment. Covered by all member class societies.
- IACS UR Z11 - Cargo-ship safety con certificate
IACS Unified Requirement Z11 - Cargo-ship safety con certificate. Covered by all member class societies.
- IACS UR Z13 - Hull Condition Monitoring
UR Z13 thickness measurement intervals and allowable diminutions for steel scantling survey - the schedule that governs ship-age surveys.
- IACS UR Z17 - Class society procedure
IACS Unified Requirement Z17 - Class society procedure. Covered by all member class societies.
- IACS UR Z18 - Damage surveys
IACS Unified Requirement Z18 - Damage surveys. Covered by all member class societies.
- IACS UR Z23 - Hull surveys of bulk carriers
IACS Unified Requirement Z23 - Hull surveys of bulk carriers. Covered by all member class societies.
- IACS UR Z25 - Hatch cover surveys
IACS Unified Requirement Z25 - Hatch cover surveys. Covered by all member class societies.
- IACS UR Z7 - Hull & machinery surveys classification
IACS Unified Requirement Z7 - Hull & machinery surveys classification. Covered by all member class societies.
- IACS UR Z8 - Boiler surveys
IACS Unified Requirement Z8 - Boiler surveys. Covered by all member class societies.
- IACS UR Z9 - Surveys elec installations
IACS Unified Requirement Z9 - Surveys elec installations. Covered by all member class societies.
- IBC - 1,2-Dichloroethane
1,2-Dichloroethane IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - 1,3-Butadiene
1,3-Butadiene IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Abietic Acid
Abietic Acid IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Acetic Acid
Acetic Acid IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Acetic Anhydride
Acetic Anhydride IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Acetone
Acetone IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Acetonitrile
Acetonitrile IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Acrolein (stabilised)
Acrolein (stabilised) IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Acrylonitrile
Acrylonitrile IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Adiponitrile
Adiponitrile IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Alkyl Benzene Sulphonic Acid
Alkyl Benzene Sulphonic Acid IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Alkylates (C10-C18)
Alkylates (C10-C18) IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Allyl Alcohol
Allyl Alcohol IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Aluminium Alkyl Compounds
Aluminium Alkyl Compounds IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Amyl Acetate (n-amyl and isoamyl)
Amyl Acetate (n-amyl and isoamyl) IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Aniline
Aniline IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Barium Hydroxide Solution
Barium Hydroxide Solution IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Benzene
Benzene IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Benzyl Alcohol
Benzyl Alcohol IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Benzyl Chloride
Benzyl Chloride IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Bisphenol-A
Bisphenol-A IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Butyl Acrylate
Butyl Acrylate IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Butyl Benzoate
Butyl Benzoate IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Butyl Benzyl Phthalate
Butyl Benzyl Phthalate IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Butylene Glycol
Butylene Glycol IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Butyric Acid
Butyric Acid IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Butyryl Chloride
Butyryl Chloride IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Calcium Chloride Solution
Calcium Chloride Solution IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Calcium Hydroxide Slurry
Calcium Hydroxide Slurry IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Calcium Hypochlorite Solution
Calcium Hypochlorite Solution IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Caprolactam (Molten)
Caprolactam (Molten) IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Carbon Tetrachloride
Carbon Tetrachloride IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Chloroacetic Acid
Chloroacetic Acid IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Chloroform
Chloroform IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Choline Chloride Solution
Choline Chloride Solution IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Chromium Chloride (Basic)
Chromium Chloride (Basic) IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Cobalt Acetate Solution
Cobalt Acetate Solution IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Coconut Oil
Coconut Oil IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Coke Oven Naphtha
Coke Oven Naphtha IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Copra Oil
Copra Oil IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Creosote (Coal Tar)
Creosote (Coal Tar) IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Cumene Hydroperoxide
Cumene Hydroperoxide IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Cyclohexane
Cyclohexane IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Cyclohexanol
Cyclohexanol IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Cyclohexanone
Cyclohexanone IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Cyclohexene
Cyclohexene IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Cyclohexyl Chloride
Cyclohexyl Chloride IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Decanoic Acid
Decanoic Acid IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Decyl Alcohol
Decyl Alcohol IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Dichloroacetic Acid
Dichloroacetic Acid IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Dichlorobenzene (o- and p-)
Dichlorobenzene (o- and p-) IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Diesel Fuel
Diesel Fuel IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Diethanolamine
Diethanolamine IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Diethyl Oxalate
Diethyl Oxalate IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Diethyl Phthalate
Diethyl Phthalate IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Diethylamine
Diethylamine IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Diethylbenzene
Diethylbenzene IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Diethylene Glycol
Diethylene Glycol IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Dihexyl Phthalate
Dihexyl Phthalate IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Diisocyanate Toluene (TDI)
Diisocyanate Toluene (TDI) IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Diisononyl Adipate
Diisononyl Adipate IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Diisononyl Phthalate
Diisononyl Phthalate IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Dimethyl Adipate
Dimethyl Adipate IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Dimethyl Glutarate
Dimethyl Glutarate IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Dimethyl Succinate
Dimethyl Succinate IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Dimethyl Sulphoxide (DMSO)
Dimethyl Sulphoxide (DMSO) IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Dimethylamine Solutions
Dimethylamine Solutions IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Dinonyl Phthalate
Dinonyl Phthalate IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Dioctyl Adipate
Dioctyl Adipate IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Dioctyl Phthalate (DOP)
Dioctyl Phthalate (DOP) IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Dioxin Mixtures
Dioxin Mixtures IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Diphenyl Oxide
Diphenyl Oxide IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Dodecane
Dodecane IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Dodecene
Dodecene IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Dodecyl Benzene (Linear)
Dodecyl Benzene (Linear) IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Epichlorohydrin
Epichlorohydrin IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Ethanolamine
Ethanolamine IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Ethyl Acetate
Ethyl Acetate IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Ethyl Acrylate
Ethyl Acrylate IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Ethyl Alcohol
Ethyl Alcohol IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Ethyl Amyl Ketone
Ethyl Amyl Ketone IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Ethyl Benzene
Ethyl Benzene IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Ethyl Benzoate
Ethyl Benzoate IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Ethyl Butyl Ether
Ethyl Butyl Ether IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Ethyl Chloroacetate
Ethyl Chloroacetate IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Ethyl Hexyl Acrylate
Ethyl Hexyl Acrylate IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Ethyl Hexyl Tallate
Ethyl Hexyl Tallate IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Ethyl Linoleate
Ethyl Linoleate IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Ethyl Oleate
Ethyl Oleate IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Ethyl Palmitate
Ethyl Palmitate IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Ethyl Stearate
Ethyl Stearate IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Ethylene Dichloride (EDC)
Ethylene Dichloride (EDC) IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Ethylene Glycol (MEG)
Ethylene Glycol (MEG) IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Ethylene Oxide
Ethylene Oxide IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Fatty Acid Methyl Esters (FAME)
Fatty Acid Methyl Esters (FAME) IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Fish Oil
Fish Oil IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Formaldehyde Solutions
Formaldehyde Solutions IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Formic Acid
Formic Acid IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Fuel Oil (No 6)
Fuel Oil (No 6) IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Fumaric Acid
Fumaric Acid IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Furfural
Furfural IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Gasoline Blending Stocks
Gasoline Blending Stocks IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Glucose Solutions
Glucose Solutions IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Glycerol
Glycerol IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Hexamethylenediamine
Hexamethylenediamine IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Hexamethylenediamine Adipate Solution
Hexamethylenediamine Adipate Solution IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Hexene-1
Hexene-1 IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Hydrochloric Acid
Hydrochloric Acid IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Hydrofluorosilicic Acid
Hydrofluorosilicic Acid IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Hydrogen Peroxide Solutions
Hydrogen Peroxide Solutions IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Hydrogenated Tallow
Hydrogenated Tallow IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Isobutyl Acrylate
Isobutyl Acrylate IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Isobutyl Alcohol
Isobutyl Alcohol IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Isobutyl Methacrylate
Isobutyl Methacrylate IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Isodecanol
Isodecanol IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Isohexene
Isohexene IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Isononyl Acetate
Isononyl Acetate IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Isooctane
Isooctane IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Isoprene (stabilised)
Isoprene (stabilised) IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Isopropyl Acetate
Isopropyl Acetate IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Isopropyl Alcohol
Isopropyl Alcohol IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Isopropyl Ether
Isopropyl Ether IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Kerosene
Kerosene IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Lactic Acid
Lactic Acid IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Lard Oil
Lard Oil IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Latex (NR)
Latex (NR) IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Lauric Acid
Lauric Acid IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Lauryl Alcohol
Lauryl Alcohol IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Lecithin
Lecithin IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Linseed Oil
Linseed Oil IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Maleic Anhydride (Molten)
Maleic Anhydride (Molten) IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Methacrylic Acid
Methacrylic Acid IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Methanol
Methanol IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Methyl Acetate
Methyl Acetate IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Methyl Acrylate
Methyl Acrylate IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Methyl Chlorosilane
Methyl Chlorosilane IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Methyl Diethanolamine
Methyl Diethanolamine IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Methyl Ethyl Ketone (MEK)
Methyl Ethyl Ketone (MEK) IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Methyl Methacrylate
Methyl Methacrylate IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Methyl Salicylate
Methyl Salicylate IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Methyl Stearate
Methyl Stearate IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Methyl tert-Butyl Ether (MTBE)
Methyl tert-Butyl Ether (MTBE) IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Methyltetrahydrofuran
Methyltetrahydrofuran IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Molasses
Molasses IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Monoethanolamine (MEA)
Monoethanolamine (MEA) IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - n-Butyl Alcohol
n-Butyl Alcohol IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - n-Hexane
n-Hexane IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Naphthalene (Molten)
Naphthalene (Molten) IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Naphthenic Acids
Naphthenic Acids IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Nitric Acid (70 % or less)
Nitric Acid (70 % or less) IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Nitric Acid (above 70 %)
Nitric Acid (above 70 %) IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Nitrobenzene
Nitrobenzene IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Nitrotoluene
Nitrotoluene IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Nonyl Alcohol
Nonyl Alcohol IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Nonyl Phenol
Nonyl Phenol IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Nonylphenol
Nonylphenol IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Octane
Octane IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Octanoic Acid
Octanoic Acid IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Octene
Octene IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Oleic Acid
Oleic Acid IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Oleum (Fuming Sulphuric Acid)
Oleum (Fuming Sulphuric Acid) IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Oleum (fuming sulphuric)
Oleum (fuming sulphuric) IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Olive Oil
Olive Oil IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Palm Oil
Palm Oil IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Paraffin Oil
Paraffin Oil IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Paraffin Waxes (Molten)
Paraffin Waxes (Molten) IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Pentadecyl Alcohol
Pentadecyl Alcohol IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Perchloroethylene
Perchloroethylene IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Phenol
Phenol IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Phenyl Ether
Phenyl Ether IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Phosphoric Acid
Phosphoric Acid IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Phosphorus Oxychloride
Phosphorus Oxychloride IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Phthalic Acid
Phthalic Acid IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Phthalic Anhydride (Molten)
Phthalic Anhydride (Molten) IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Polyether Polyol
Polyether Polyol IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Polymeric MDI
Polymeric MDI IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Polypropylene Glycol
Polypropylene Glycol IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Propionic Anhydride
Propionic Anhydride IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Propyl Acetate (n- and iso-)
Propyl Acetate (n- and iso-) IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Propylene Carbonate
Propylene Carbonate IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Propylene Glycol
Propylene Glycol IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Propylene Glycol Methyl Ether
Propylene Glycol Methyl Ether IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Propylene Oxide
Propylene Oxide IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Pyrene
Pyrene IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Pyrethrum Extract
Pyrethrum Extract IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Rapeseed Oil
Rapeseed Oil IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Sebacic Acid Solution
Sebacic Acid Solution IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Sesame Oil
Sesame Oil IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Sodium Hydrosulphite Solution
Sodium Hydrosulphite Solution IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Sodium Hypochlorite Solution
Sodium Hypochlorite Solution IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Sodium Methylate Solution
Sodium Methylate Solution IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Sodium Silicate Solution
Sodium Silicate Solution IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Sorbitol Solution
Sorbitol Solution IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Soybean Oil
Soybean Oil IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Stearic Acid
Stearic Acid IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Styrene Monomer
Styrene Monomer IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Styrene Oxide
Styrene Oxide IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Sulphonic Acid (linear alkylbenzene)
Sulphonic Acid (linear alkylbenzene) IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Sulphur (Molten)
Sulphur (Molten) IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Sulphuric Acid
Sulphuric Acid IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Tall Oil Fatty Acid
Tall Oil Fatty Acid IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Tallow Oil
Tallow Oil IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Tar Oils
Tar Oils IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - tert-Butyl Alcohol
tert-Butyl Alcohol IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Tetrachloroethane
Tetrachloroethane IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Tetrachloroethylene
Tetrachloroethylene IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Tetrahydrofuran
Tetrahydrofuran IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Tetrahydrofurfuryl Alcohol
Tetrahydrofurfuryl Alcohol IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Tetramethyl Ammonium Hydroxide Solution
Tetramethyl Ammonium Hydroxide Solution IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Thiolactic Acid
Thiolactic Acid IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Titanium Tetrachloride
Titanium Tetrachloride IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Toluene
Toluene IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Toluene Diisocyanate (TDI)
Toluene Diisocyanate (TDI) IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Tributyl Phosphate
Tributyl Phosphate IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Trichloroisocyanuric Acid
Trichloroisocyanuric Acid IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Triethanolamine
Triethanolamine IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Triethylene Glycol
Triethylene Glycol IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Triethylene Tetramine
Triethylene Tetramine IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Triisobutylene
Triisobutylene IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Trimethyl Phosphate
Trimethyl Phosphate IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Trimethylbenzene
Trimethylbenzene IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Trimethylhexamethylene Diamine
Trimethylhexamethylene Diamine IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Tripropylene
Tripropylene IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Urea Ammonium Nitrate Solution
Urea Ammonium Nitrate Solution IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Urea Resin Solution
Urea Resin Solution IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Vinyl Acetate Monomer
Vinyl Acetate Monomer IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Vinyl Chloride Monomer (VCM)
Vinyl Chloride Monomer (VCM) IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Vinyl Neodecanoate
Vinyl Neodecanoate IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Vinyl Pyrrolidone
Vinyl Pyrrolidone IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Vinyltoluene
Vinyltoluene IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Wax Paraffin
Wax Paraffin IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Xylenes (Mixed)
Xylenes (Mixed) IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Xylenol
Xylenol IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Zinc Dust Slurry
Zinc Dust Slurry IBC Code Ch.17 chemical tanker cargo - NLS category, ship type, tank type, venting / segregation basics.
- IBC - Zinc Naphthenate
Zinc Naphthenate IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC - Zinc Octoate
Zinc Octoate IBC Code Ch.17 chemical tanker cargo reference card - NLS category, ship type, tank type, venting and segregation baseline.
- IBC Code Ship Type for Chemicals
Ship-type requirement (1 / 2 / 3) for carrying a given chemical cargo, per IBC Code Chapter 2.
- ICCP - Power Supply Rating
ICCP power-supply rating from required hull-protection current, voltage, and design margin - the unit spec for new-build / retrofit.
- ICCP Set-point Check
CP potential measurement - steel is protected when its potential vs Ag/AgCl reference electrode is between −800 mV and −1100 mV.
- Ice Atlas - Route Choice
Ice Atlas - Route Choice - concept summary and example calculation.
- Ice Class - Sub-Categories
Ice class sub-category choice - from FSICR (IA/IB/IC/IC Super) to IACS PC1-PC7 - determines ice load + hull power.
- Ice Design Load (IACS UR I1)
Order-of-magnitude ice bow load per IACS Polar Class UR I1, using the class-factor and hull-form dependencies.
- Ice Drift Vector
Free-drifting ice moves ~2 % of wind speed at ~30° to the right of wind (Nansen rule) in northern hemisphere, plus any surface-current contribution.
- Ice Frame Load - FSICR Section Modulus
Required section modulus of an ice-strengthened frame under FSICR ice-pressure load p_ice - quick rule-based scantling check for bow/ice-belt frames.
- Ice-Resistance - Jones / Kashteljan
Ice-resistance estimate for a merchant ship in level ice using Jones 2005 / Kashteljan formula - the go-to screening method in ice-class design.
- Ice-Steel Adhesion - Shear Strength
Shear strength between ice and hull-coating surface at a given temperature - crucial for ice-breaking resistance prediction and hull-coating selection.
- Icebreaker - Required Propulsion Power
Required propulsion power for an icebreaker to maintain 3 kn in a given level-ice thickness - the classical rule-of-thumb.
- Icebreaker Fuel & CO₂
Polar and Baltic icebreakers. Outside CII scope (operations vary wildly with ice thickness). Per-operating-day intensity is the most stable benchmark.
- IDMT Relay Operating Time (IEC 60255)
Time to trip for an inverse-time overcurrent relay following IEC 60255 normal/very/extremely inverse curves.
- IE1→IE3 Efficiency Upgrade Savings
Annual energy and USD savings from replacing an IE1 standard motor with an IE3 premium-efficiency motor.
- IEC 61363 - Ship Short-Circuit Current
Initial symmetrical short-circuit current (I_k) at a ship's main switchboard per IEC 61363-1 - used to verify switchgear breaking capacity.
- IGC - Ammonia
Ammonia IGC Code Ch.19 gas carrier cargo - BP -33 °C. Tank type / secondary barrier / venting baseline.
- IGC - Argon (liquefied)
Argon (liquefied) IGC Code Ch.19 gas carrier cargo - BP -186 °C. Tank type / secondary barrier / venting baseline.
- IGC - Butadiene
Butadiene IGC Code Ch.19 gas carrier cargo - BP -4 °C. Tank type / secondary barrier / venting baseline.
- IGC - Butane
Butane IGC Code Ch.19 gas carrier cargo - BP -1 °C. Tank type / secondary barrier / venting baseline.
- IGC - Butylene
Butylene IGC Code Ch.19 gas carrier cargo - BP -6 °C. Tank type / secondary barrier / venting baseline.
- IGC - Carbon Dioxide (liquefied)
Carbon Dioxide (liquefied) IGC Code Ch.19 gas carrier cargo - BP -56 °C. Tank type / secondary barrier / venting baseline.
- IGC - Chlorine
Chlorine IGC Code Ch.19 gas carrier cargo - BP -34 °C. Tank type / secondary barrier / venting baseline.
- IGC - Diethylamine
Diethylamine IGC Code Ch.19 gas carrier cargo - BP 55 °C. Tank type / secondary barrier / venting baseline.
- IGC - Dimethyl Ether
Dimethyl Ether IGC Code Ch.19 gas carrier cargo - BP -24 °C. Tank type / secondary barrier / venting baseline.
- IGC - Dimethylamine
Dimethylamine IGC Code Ch.19 gas carrier cargo - BP 7 °C. Tank type / secondary barrier / venting baseline.
- IGC - Ethane
Ethane IGC Code Ch.19 gas carrier cargo - BP -89 °C. Tank type / secondary barrier / venting baseline.
- IGC - Ethyl Chloride
Ethyl Chloride IGC Code Ch.19 gas carrier cargo - BP 12 °C. Tank type / secondary barrier / venting baseline.
- IGC - Ethylene
Ethylene IGC Code Ch.19 gas carrier cargo - BP -104 °C. Tank type / secondary barrier / venting baseline.
- IGC - Ethylene Oxide
Ethylene Oxide IGC Code Ch.19 gas carrier cargo - BP 11 °C. Tank type / secondary barrier / venting baseline.
- IGC - Hydrogen (liquefied)
Hydrogen (liquefied) IGC Code Ch.19 gas carrier cargo - BP -253 °C. Tank type / secondary barrier / venting baseline.
- IGC - Hydrogen Cyanide
Hydrogen Cyanide IGC Code Ch.19 gas carrier cargo - BP 26 °C. Tank type / secondary barrier / venting baseline.
- IGC - Isobutane
Isobutane IGC Code Ch.19 gas carrier cargo - BP -12 °C. Tank type / secondary barrier / venting baseline.
- IGC - Isoprene
Isoprene IGC Code Ch.19 gas carrier cargo - BP 34 °C. Tank type / secondary barrier / venting baseline.
- IGC - Methane (LNG)
Methane (LNG) IGC Code Ch.19 gas carrier cargo - BP -162 °C. Tank type / secondary barrier / venting baseline.
- IGC - Methyl Bromide
Methyl Bromide IGC Code Ch.19 gas carrier cargo - BP 4 °C. Tank type / secondary barrier / venting baseline.
- IGC - Methyl Chloride
Methyl Chloride IGC Code Ch.19 gas carrier cargo - BP -24 °C. Tank type / secondary barrier / venting baseline.
- IGC - Monoethylamine
Monoethylamine IGC Code Ch.19 gas carrier cargo - BP 17 °C. Tank type / secondary barrier / venting baseline.
- IGC - Nitrogen (liquefied)
Nitrogen (liquefied) IGC Code Ch.19 gas carrier cargo - BP -196 °C. Tank type / secondary barrier / venting baseline.
- IGC - Propane
Propane IGC Code Ch.19 gas carrier cargo - BP -42 °C. Tank type / secondary barrier / venting baseline.
- IGC - Propylene
Propylene IGC Code Ch.19 gas carrier cargo - BP -47 °C. Tank type / secondary barrier / venting baseline.
- IGC - Propylene Oxide
Propylene Oxide IGC Code Ch.19 gas carrier cargo - BP 34 °C. Tank type / secondary barrier / venting baseline.
- IGC - Sulphur Dioxide
Sulphur Dioxide IGC Code Ch.19 gas carrier cargo - BP -10 °C. Tank type / secondary barrier / venting baseline.
- IGC - Trimethylamine
Trimethylamine IGC Code Ch.19 gas carrier cargo - BP 3 °C. Tank type / secondary barrier / venting baseline.
- IGC - Vinyl Chloride (VCM)
Vinyl Chloride (VCM) IGC Code Ch.19 gas carrier cargo - BP -14 °C. Tank type / secondary barrier / venting baseline.
- IGC - Vinyl Ethyl Ether
Vinyl Ethyl Ether IGC Code Ch.19 gas carrier cargo - BP 36 °C. Tank type / secondary barrier / venting baseline.
- IGC - Vinyl Methyl Ether
Vinyl Methyl Ether IGC Code Ch.19 gas carrier cargo - BP 6 °C. Tank type / secondary barrier / venting baseline.
- IGC Code Tank Types A / B / C / Membrane
IGC Code cargo-containment tank type selection - independent A/B/C or integrated membrane.
- IGC Type C Tank - MARVS Check
Maximum allowable relief-valve setting (MARVS) for an IGC Type C pressure vessel - 7 bar or higher per IGC Code Ch. 4.
- IMDG - Container Hazard Class Display
IMDG class decal requirements on a DG container - diamond placard 250 × 250 mm on all 4 sides.
- IMDG - Packing Group Screening
Classify an IMDG packing group (I, II, III) by cargo flash point, boiling point or toxicity class.
- IMDG Class 4.3 - Water-Reactive
IMDG Class 4.3 cargo - ignites on contact with water or emits flammable gas. Stowage / segregation rules.
- IMDG Class 7 - Radioactive Shipping
IMDG Class 7 radioactive material - Transport Index (TI) determines stowage category.
- IMDG EmS - Emergency Schedule
Look-up of IMDG Emergency Response Schedule (EmS) code by UN number - format F-x / S-y for fire / spillage response.
- IMDG Limited Quantity - Mark Check
Limited Quantity marking per IMDG Code 3.4 - reduces DG formalities for small retail packaging.
- IMDG Packing Group (PG I/II/III)
Packing-group assignment by hazard severity - drives packaging, marking and allowed-quantity thresholds.
- IMDG Segregation Distance
Minimum distance between containers of different IMDG hazard classes per IMDG Code §7.2 segregation table.
- Immingham (GB) - Port Card
Immingham, GB - annual throughput ~100,000 TEU, max draft 14 m. UK East.
- IMO A.1047(27) - Principles of safe manning
IMO Resolution A.1047(27) - Principles of safe manning. Summary reference for compliance and audit work.
- IMO A.1067(28) - IMO Member State Audit Scheme
IMO Resolution A.1067(28) - IMO Member State Audit Scheme. Summary reference for compliance and audit work.
- IMO A.751(18) - Interim standards for ship manoeuvrability
IMO Resolution A.751(18) - Interim standards for ship manoeuvrability. Summary reference for compliance and audit work.
- IMO AFS 2001 - Anti-Fouling Systems
AFS 2001 (2001) - Anti-Fouling Systems. Applicability + basic compliance summary.
- IMO Bunkers 2001 - Bunker Oil Pollution Liability
Bunkers 2001 (2001) - Bunker Oil Pollution Liability. Applicability + basic compliance summary.
- IMO BWMC - Ballast Water Management
BWMC (2004) - Ballast Water Management. Applicability + basic compliance summary.
- IMO Casualty - Very Serious Class
Marine-casualty classification per IMO MSC.255(84) - very serious vs serious vs less serious.
- IMO CLC - Civil Liability for Oil Pollution
CLC (1992) - Civil Liability for Oil Pollution. Applicability + basic compliance summary.
- IMO COLREGs - Collision Regulations
COLREGs (1972) - Collision Regulations. Applicability + basic compliance summary.
- IMO DCS - Annual Fuel Report
IMO DCS (Data Collection System) annual fuel consumption report per MARPOL Annex VI Reg. 27 for ships > 5 000 GT.
- IMO DCS Annual Report
Annual aggregate filed under MARPOL Annex VI Regulation 22A.
- IMO FSS Code - Fire Safety Systems Code
FSS Code (2002) - Fire Safety Systems Code. Applicability + basic compliance summary.
- IMO HNS 2010 - Hazardous & Noxious Substances
HNS 2010 (2010) - Hazardous & Noxious Substances. Applicability + basic compliance summary.
- IMO Hong Kong 2009 - Ship Recycling
Hong Kong 2009 (2009) - Ship Recycling. Applicability + basic compliance summary.
- IMO IBC Code - Int'l Bulk Chemical Code
IBC Code (1986) - Int'l Bulk Chemical Code. Applicability + basic compliance summary.
- IMO IGC Code - Int'l Gas Carrier Code
IGC Code (1986) - Int'l Gas Carrier Code. Applicability + basic compliance summary.
- IMO IGF Code - International Gas Fuel Code
IGF Code (2017) - International Gas Fuel Code. Applicability + basic compliance summary.
- IMO IMDG - Int'l Maritime Dangerous Goods
IMDG (1965) - Int'l Maritime Dangerous Goods. Applicability + basic compliance summary.
- IMO IMSBC - Int'l Maritime Solid Bulk Cargoes
IMSBC (2008) - Int'l Maritime Solid Bulk Cargoes. Applicability + basic compliance summary.
- IMO Intervention 1969 - Oil Pollution Intervention
Intervention 1969 (1969) - Oil Pollution Intervention. Applicability + basic compliance summary.
- IMO ISM Code - Int'l Safety Management
ISM Code (1993) - Int'l Safety Management. Applicability + basic compliance summary.
- IMO ISPS Code - Int'l Ship and Port Security
ISPS Code (2002) - Int'l Ship and Port Security. Applicability + basic compliance summary.
- IMO LL - Load Lines Convention
LL (1966) - Load Lines Convention. Applicability + basic compliance summary.
- IMO LLMC 1976 - Limitation of Liability Maritime Claims
LLMC 1976 (1976) - Limitation of Liability Maritime Claims. Applicability + basic compliance summary.
- IMO London Protocol - Dumping Prevention (Ocean)
London Protocol (1996) - Dumping Prevention (Ocean). Applicability + basic compliance summary.
- IMO LSA Code - Life-Saving Appliances Code
LSA Code (1996) - Life-Saving Appliances Code. Applicability + basic compliance summary.
- IMO MARPOL - Marine Pollution Prevention
MARPOL (1973) - Marine Pollution Prevention. Applicability + basic compliance summary.
- IMO MEPC.107(49) - Oil filtering equipment 15 ppm
IMO MEPC.107(49) test method - Oil filtering equipment 15 ppm. Common lab test used for marine water quality assessment.
- IMO MEPC.107(49) - Oil filtering equipment for machinery-space bilges
IMO Resolution MEPC.107(49) - Oil filtering equipment for machinery-space bilges. Summary reference for compliance and audit work.
- IMO MEPC.115(51) - Guidelines for engine emission surveys
IMO Resolution MEPC.115(51) - Guidelines for engine emission surveys. Summary reference for compliance and audit work.
- IMO MEPC.130(53) - Guidelines for voluntary oil spill response plan
IMO Resolution MEPC.130(53) - Guidelines for voluntary oil spill response plan. Summary reference for compliance and audit work.
- IMO MEPC.139(53) - Guidelines for Environmental Compliance
IMO Resolution MEPC.139(53) - Guidelines for Environmental Compliance. Summary reference for compliance and audit work.
- IMO MEPC.159(55) - Sewage treatment plant effluent standard (old)
IMO Resolution MEPC.159(55) - Sewage treatment plant effluent standard (old). Summary reference for compliance and audit work.
- IMO MEPC.159(55) - STP effluent standard
IMO MEPC.159(55) test method - STP effluent standard. Common lab test used for marine water quality assessment.
- IMO MEPC.176(58) - Amendments to MARPOL Annex VI - Chapter 4
IMO Resolution MEPC.176(58) - Amendments to MARPOL Annex VI - Chapter 4. Summary reference for compliance and audit work.
- IMO MEPC.182(59) - Sampling of fuel oil for determination of compliance
IMO Resolution MEPC.182(59) - Sampling of fuel oil for determination of compliance. Summary reference for compliance and audit work.
- IMO MEPC.184(59) - Exhaust Gas Cleaning System guidelines
IMO Resolution MEPC.184(59) - Exhaust Gas Cleaning System guidelines. Summary reference for compliance and audit work.
- IMO MEPC.213(63) - Guidelines for energy management plan (SEEMP)
IMO Resolution MEPC.213(63) - Guidelines for energy management plan (SEEMP). Summary reference for compliance and audit work.
- IMO MEPC.214(63) - Survey and certification of EEDI
IMO Resolution MEPC.214(63) - Survey and certification of EEDI. Summary reference for compliance and audit work.
- IMO MEPC.215(63) - EEDI reference lines for new ships
IMO Resolution MEPC.215(63) - EEDI reference lines for new ships. Summary reference for compliance and audit work.
- IMO MEPC.217(63) - Amendments - Special Area provisions
IMO Resolution MEPC.217(63) - Amendments - Special Area provisions. Summary reference for compliance and audit work.
- IMO MEPC.227(64) - STP revised effluent standard
IMO MEPC.227(64) test method - STP revised effluent standard. Common lab test used for marine water quality assessment.
- IMO MEPC.231(65) - Guidelines for calculation of attained EEDI
IMO Resolution MEPC.231(65) - Guidelines for calculation of attained EEDI. Summary reference for compliance and audit work.
- IMO MEPC.232(65) - Guidelines for EEDI minimum propulsion power
IMO Resolution MEPC.232(65) - Guidelines for EEDI minimum propulsion power. Summary reference for compliance and audit work.
- IMO MEPC.233(65) - Guidelines for ROs under Annex VI
IMO Resolution MEPC.233(65) - Guidelines for ROs under Annex VI. Summary reference for compliance and audit work.
- IMO MEPC.244(66) - Incinerator standard specification
IMO Resolution MEPC.244(66) - Incinerator standard specification. Summary reference for compliance and audit work.
- IMO MEPC.245(66) - Guidelines for EEDI from CH4 / N2O fuels
IMO Resolution MEPC.245(66) - Guidelines for EEDI from CH4 / N2O fuels. Summary reference for compliance and audit work.
- IMO MEPC.246(66) - MEPC.246 - EEDI phase 2 / 3 factor
IMO Resolution MEPC.246(66) - MEPC.246 - EEDI phase 2 / 3 factor. Summary reference for compliance and audit work.
- IMO MEPC.253(67) - MARPOL Annex VI amendments - NOx Tier III
IMO Resolution MEPC.253(67) - MARPOL Annex VI amendments - NOx Tier III. Summary reference for compliance and audit work.
- IMO MEPC.258(67) - Guidelines for methodological approach to EEDI validation
IMO Resolution MEPC.258(67) - Guidelines for methodological approach to EEDI validation. Summary reference for compliance and audit work.
- IMO MEPC.259(68) - Ballast Water Management System D-2 standard
IMO Resolution MEPC.259(68) - Ballast Water Management System D-2 standard. Summary reference for compliance and audit work.
- IMO MEPC.260(68) - Ballast Water Management Convention G8 type approval
IMO Resolution MEPC.260(68) - Ballast Water Management Convention G8 type approval. Summary reference for compliance and audit work.
- IMO MEPC.265(68) - Amendment MEPC.272(69) - sulphur monitoring
IMO Resolution MEPC.265(68) - Amendment MEPC.272(69) - sulphur monitoring. Summary reference for compliance and audit work.
- IMO MEPC.271(69) - Amendments to IBC Code (MARPOL Annex II)
IMO Resolution MEPC.271(69) - Amendments to IBC Code (MARPOL Annex II). Summary reference for compliance and audit work.
- IMO MEPC.273(69) - Guidelines for SEEMP Part II data collection
IMO Resolution MEPC.273(69) - Guidelines for SEEMP Part II data collection. Summary reference for compliance and audit work.
- IMO MEPC.277(70) - Amendments MARPOL Annex VI - Data Collection System
IMO Resolution MEPC.277(70) - Amendments MARPOL Annex VI - Data Collection System. Summary reference for compliance and audit work.
- IMO MEPC.278(70) - Amendments SEEMP Part II for reporting
IMO Resolution MEPC.278(70) - Amendments SEEMP Part II for reporting. Summary reference for compliance and audit work.
- IMO MEPC.281(70) - Guidelines for calculation of required EEDI
IMO Resolution MEPC.281(70) - Guidelines for calculation of required EEDI. Summary reference for compliance and audit work.
- IMO MEPC.282(70) - Guidelines for verification of attained EEDI
IMO Resolution MEPC.282(70) - Guidelines for verification of attained EEDI. Summary reference for compliance and audit work.
- IMO MEPC.295(71) - Garbage Management Plan revised guidelines
IMO Resolution MEPC.295(71) - Garbage Management Plan revised guidelines. Summary reference for compliance and audit work.
- IMO MEPC.300(72) - BWMS Code amendments (G8)
IMO Resolution MEPC.300(72) - BWMS Code amendments (G8). Summary reference for compliance and audit work.
- IMO MEPC.305(73) - Amendments - North American ECA
IMO Resolution MEPC.305(73) - Amendments - North American ECA. Summary reference for compliance and audit work.
- IMO MEPC.308(73) - EEDI revised reference lines for container + ro-ro
IMO Resolution MEPC.308(73) - EEDI revised reference lines for container + ro-ro. Summary reference for compliance and audit work.
- IMO MEPC.323(74) - JIT arrival - industry engagement
IMO Resolution MEPC.323(74) - JIT arrival - industry engagement. Summary reference for compliance and audit work.
- IMO MEPC.328(76) - Amendments MARPOL Annex VI - EEXI + CII
IMO Resolution MEPC.328(76) - Amendments MARPOL Annex VI - EEXI + CII. Summary reference for compliance and audit work.
- IMO MEPC.334(76) - Amendments BWMC - commissioning testing
IMO Resolution MEPC.334(76) - Amendments BWMC - commissioning testing. Summary reference for compliance and audit work.
- IMO MEPC.336(76) - Guidelines on operational carbon intensity (CII)
IMO Resolution MEPC.336(76) - Guidelines on operational carbon intensity (CII). Summary reference for compliance and audit work.
- IMO MEPC.337(76) - Guidelines on reference lines for CII
IMO Resolution MEPC.337(76) - Guidelines on reference lines for CII. Summary reference for compliance and audit work.
- IMO MEPC.338(76) - Guidelines on CII rating thresholds
IMO Resolution MEPC.338(76) - Guidelines on CII rating thresholds. Summary reference for compliance and audit work.
- IMO MEPC.339(76) - Guidelines on CII corrective action
IMO Resolution MEPC.339(76) - Guidelines on CII corrective action. Summary reference for compliance and audit work.
- IMO MEPC.340(77) - EGCS discharge water monitoring + recording
IMO Resolution MEPC.340(77) - EGCS discharge water monitoring + recording. Summary reference for compliance and audit work.
- IMO MEPC.346(78) - Guidelines on SEEMP Part III implementation
IMO Resolution MEPC.346(78) - Guidelines on SEEMP Part III implementation. Summary reference for compliance and audit work.
- IMO MEPC.353(78) - Amendments to MARPOL Annex I - oily mixtures
IMO Resolution MEPC.353(78) - Amendments to MARPOL Annex I - oily mixtures. Summary reference for compliance and audit work.
- IMO MEPC.364(79) - Amendments - GHG fuel-factor table update
IMO Resolution MEPC.364(79) - Amendments - GHG fuel-factor table update. Summary reference for compliance and audit work.
- IMO MEPC.377(80) - Revised GHG strategy - net-zero by/around 2050
IMO Resolution MEPC.377(80) - Revised GHG strategy - net-zero by/around 2050. Summary reference for compliance and audit work.
- IMO MEPC.378(80) - Revised guidelines on biofouling management
IMO Resolution MEPC.378(80) - Revised guidelines on biofouling management. Summary reference for compliance and audit work.
- IMO MLC 2006 - Maritime Labour Convention
MLC 2006 (2006) - Maritime Labour Convention. Applicability + basic compliance summary.
- IMO MSC.137(76) - Ship manoeuvrability standards
IMO Resolution MSC.137(76) - Ship manoeuvrability standards. Summary reference for compliance and audit work.
- IMO MSC.145(77) - Adoption of IGC Code revised
IMO Resolution MSC.145(77) - Adoption of IGC Code revised. Summary reference for compliance and audit work.
- IMO MSC.159(78) - Amendments - IMDG Code 32-04
IMO Resolution MSC.159(78) - Amendments - IMDG Code 32-04. Summary reference for compliance and audit work.
- IMO MSC.216(82) - SOLAS II-1/II-2 amendments - fire + safety
IMO Resolution MSC.216(82) - SOLAS II-1/II-2 amendments - fire + safety. Summary reference for compliance and audit work.
- IMO MSC.255(84) - Casualty investigation code
IMO Resolution MSC.255(84) - Casualty investigation code. Summary reference for compliance and audit work.
- IMO MSC.268(85) - IMSBC Code adoption
IMO Resolution MSC.268(85) - IMSBC Code adoption. Summary reference for compliance and audit work.
- IMO MSC.333(90) - Performance standards for VDR
IMO Resolution MSC.333(90) - Performance standards for VDR. Summary reference for compliance and audit work.
- IMO MSC.385(94) - Polar Code adoption
IMO Resolution MSC.385(94) - Polar Code adoption. Summary reference for compliance and audit work.
- IMO MSC.402(96) - Requirements for LSA release hooks - revised
IMO Resolution MSC.402(96) - Requirements for LSA release hooks - revised. Summary reference for compliance and audit work.
- IMO MSC.428(98) - Maritime cyber-risk management
IMO Resolution MSC.428(98) - Maritime cyber-risk management. Summary reference for compliance and audit work.
- IMO MSC.522(106) - IMDG Code 41-22 adoption
IMO Resolution MSC.522(106) - IMDG Code 41-22 adoption. Summary reference for compliance and audit work.
- IMO MSC.537(106) - Goal-based standards audit
IMO Resolution MSC.537(106) - Goal-based standards audit. Summary reference for compliance and audit work.
- IMO MSC.81(70) - LSA Code amendments - lifeboat release hooks
IMO Resolution MSC.81(70) - LSA Code amendments - lifeboat release hooks. Summary reference for compliance and audit work.
- IMO Nairobi WRC - Wreck Removal Convention
Nairobi WRC (2007) - Wreck Removal Convention. Applicability + basic compliance summary.
- IMO NOx Technical Code - NOx emission test cycle
IMO NOx Technical Code test method - NOx emission test cycle. Common lab test used for marine emissions quality assessment.
- IMO OPRC 1990 - Oil Pollution Preparedness Response
OPRC 1990 (1990) - Oil Pollution Preparedness Response. Applicability + basic compliance summary.
- IMO Polar Code - Polar Waters Operation Code
Polar Code (2017) - Polar Waters Operation Code. Applicability + basic compliance summary.
- IMO SAR 1979 - Search and Rescue
SAR 1979 (1979) - Search and Rescue. Applicability + basic compliance summary.
- IMO SOLAS - Safety of Life at Sea
SOLAS (1974) - Safety of Life at Sea. Applicability + basic compliance summary.
- IMO STCW - Seafarer Training, Certification
STCW (1978) - Seafarer Training, Certification. Applicability + basic compliance summary.
- IMO SUA 1988 - Suppression of Unlawful Acts
SUA 1988 (1988) - Suppression of Unlawful Acts. Applicability + basic compliance summary.
- IMO Tonnage 1969 - International Tonnage Measurement
Tonnage 1969 (1969) - International Tonnage Measurement. Applicability + basic compliance summary.
- IMO Type 9 Portable Tank
IMO type 9 tank (former IMO-9) for liquefied gases and refrigerated low-temp cargoes - design temp -196 °C to -40 °C.
- IMSBC - Activated Carbon
Activated Carbon IMSBC Code cargo summary - Group B, bulk density 400 kg/m³. Self-heat.
- IMSBC - Alumina
Alumina IMSBC Code cargo summary - Group C, bulk density 1000 kg/m³. Dust; caustic.
- IMSBC - Aluminium Dross
Aluminium Dross IMSBC Code cargo summary - Group B, bulk density 1800 kg/m³. Pyrophoric.
- IMSBC - Aluminium Sulphate
Aluminium Sulphate IMSBC Code cargo summary - Group C, bulk density 1500 kg/m³. Corrosive when wet.
- IMSBC - Ammonia Nitrate Based Fertilisers UN2067
Ammonia Nitrate Based Fertilisers UN2067 IMSBC Code cargo summary - Group B, bulk density 900 kg/m³. Oxidiser class 5.1.
- IMSBC - Ammonia Nitrate UN1942
Ammonia Nitrate UN1942 IMSBC Code cargo summary - Group B, bulk density 900 kg/m³. Oxidiser class 5.1.
- IMSBC - Ammonium Sulphate
Ammonium Sulphate IMSBC Code cargo summary - Group C, bulk density 900 kg/m³. Not dangerous bulk.
- IMSBC - Antimony Ore
Antimony Ore IMSBC Code cargo summary - Group C, bulk density 2600 kg/m³, angle of repose ~30°.
- IMSBC - Asbestos
Asbestos IMSBC Code cargo summary - Group C, bulk density 1500 kg/m³. Health hazard; regulated.
- IMSBC - Barium Nitrate
Barium Nitrate IMSBC Code cargo summary - Group B, bulk density 1700 kg/m³, angle of repose ~30°.
- IMSBC - Barley
Barley IMSBC Code cargo summary - Group C, bulk density 620 kg/m³. Shift.
- IMSBC - Barytes (BaSO4)
Barytes (BaSO4) IMSBC Code cargo summary - Group C, bulk density 4500 kg/m³, angle of repose ~32°.
- IMSBC - Bauxite
Bauxite IMSBC Code cargo summary - Group C, bulk density 1200 kg/m³. Dust; sometimes Group A fines.
- IMSBC - Bauxite Fines
Bauxite Fines IMSBC Code cargo summary - Group A, bulk density 1400 kg/m³. Liquefaction (recent schedule).
- IMSBC - Bentonite
Bentonite IMSBC Code cargo summary - Group A, bulk density 1000 kg/m³. Liquefaction.
- IMSBC - Beryllium Ore
Beryllium Ore IMSBC Code cargo summary - Group C, bulk density 2700 kg/m³, angle of repose ~32°.
- IMSBC - Biomass Pellets
Biomass Pellets IMSBC Code cargo summary - Group B, bulk density 700 kg/m³. Self-heat, CO fatal.
- IMSBC - Borate (Boron)
Borate (Boron) IMSBC Code cargo summary - Group C, bulk density 1000 kg/m³. Inert.
- IMSBC - Borax
Borax IMSBC Code cargo summary - Group C, bulk density 900 kg/m³. Inert.
- IMSBC - Borax (Anhydrous)
Borax (Anhydrous) IMSBC Code cargo summary - Group C, bulk density 1200 kg/m³, angle of repose ~30°.
- IMSBC - Bottom Ash
Bottom Ash IMSBC Code cargo summary - Group C, bulk density 1100 kg/m³. Hot during loading.
- IMSBC - Brucite
Brucite IMSBC Code cargo summary - Group C, bulk density 2300 kg/m³, angle of repose ~30°.
- IMSBC - Calcium Carbide
Calcium Carbide IMSBC Code cargo summary - Group B, bulk density 1200 kg/m³. Water-reactive.
- IMSBC - Calcium Chloride
Calcium Chloride IMSBC Code cargo summary - Group C, bulk density 1100 kg/m³. Hygroscopic.
- IMSBC - Calcium Nitrate
Calcium Nitrate IMSBC Code cargo summary - Group B, bulk density 1400 kg/m³, angle of repose ~30°.
- IMSBC - Calcium Phosphate
Calcium Phosphate IMSBC Code cargo summary - Group C, bulk density 1100 kg/m³. Inert.
- IMSBC - Canola Seeds
Canola Seeds IMSBC Code cargo summary - Group B, bulk density 700 kg/m³. Self-heat.
- IMSBC - Carbon Black
Carbon Black IMSBC Code cargo summary - Group B, bulk density 250 kg/m³. Self-heat.
- IMSBC - Carborundum
Carborundum IMSBC Code cargo summary - Group C, bulk density 2000 kg/m³, angle of repose ~30°.
- IMSBC - Castor Meal
Castor Meal IMSBC Code cargo summary - Group C, bulk density 500 kg/m³, angle of repose ~32°.
- IMSBC - Caustic Soda (NaOH)
Caustic Soda (NaOH) IMSBC Code cargo summary - Group B, bulk density 2100 kg/m³. Highly corrosive.
- IMSBC - Cement
Cement IMSBC Code cargo summary - Group C, bulk density 1400 kg/m³. Dust; heats when wetted.
- IMSBC - Chalk
Chalk IMSBC Code cargo summary - Group C, bulk density 1400 kg/m³, angle of repose ~30°.
- IMSBC - Charcoal
Charcoal IMSBC Code cargo summary - Group B, bulk density 400 kg/m³. Self-heat.
- IMSBC - Chromite
Chromite IMSBC Code cargo summary - Group C, bulk density 2400 kg/m³. Heavy.
- IMSBC - Cinders (Pulverised)
Cinders (Pulverised) IMSBC Code cargo summary - Group B, bulk density 700 kg/m³, angle of repose ~32°.
- IMSBC - Clinker
Clinker IMSBC Code cargo summary - Group C, bulk density 1400 kg/m³. Heats when wetted.
- IMSBC - Coal (Anthracite)
Coal (Anthracite) IMSBC Code cargo summary - Group B, bulk density 900 kg/m³. Self-heat.
- IMSBC - Coal (Bituminous)
Coal (Bituminous) IMSBC Code cargo summary - Group B, bulk density 850 kg/m³. Self-heat; methane.
- IMSBC - Coal (Lignite)
Coal (Lignite) IMSBC Code cargo summary - Group B, bulk density 750 kg/m³. High self-heat.
- IMSBC - Coke
Coke IMSBC Code cargo summary - Group C, bulk density 550 kg/m³. Dust.
- IMSBC - Coke Breeze
Coke Breeze IMSBC Code cargo summary - Group B, bulk density 650 kg/m³. Self-heat.
- IMSBC - Copper Concentrate
Copper Concentrate IMSBC Code cargo summary - Group A, bulk density 2600 kg/m³. Liquefaction.
- IMSBC - Copper Dross
Copper Dross IMSBC Code cargo summary - Group C, bulk density 3000 kg/m³, angle of repose ~30°.
- IMSBC - Copper Matte
Copper Matte IMSBC Code cargo summary - Group C, bulk density 3800 kg/m³. Heavy.
- IMSBC - Copper Slag
Copper Slag IMSBC Code cargo summary - Group C, bulk density 2200 kg/m³. Heavy.
- IMSBC - Copra (Dried Coconut)
Copra (Dried Coconut) IMSBC Code cargo summary - Group B, bulk density 500 kg/m³. High self-heat.
- IMSBC - Corn Cob
Corn Cob IMSBC Code cargo summary - Group C, bulk density 300 kg/m³, angle of repose ~38°.
- IMSBC - Corn Gluten Feed
Corn Gluten Feed IMSBC Code cargo summary - Group B, bulk density 500 kg/m³. Self-heat.
- IMSBC - Cornmeal
Cornmeal IMSBC Code cargo summary - Group B, bulk density 620 kg/m³, angle of repose ~32°.
- IMSBC - Cotton Seeds
Cotton Seeds IMSBC Code cargo summary - Group B, bulk density 470 kg/m³. Self-heat.
- IMSBC - Cottonseed
Cottonseed IMSBC Code cargo summary - Group B, bulk density 650 kg/m³, angle of repose ~30°.
- IMSBC - Cottonseed Meal
Cottonseed Meal IMSBC Code cargo summary - Group B, bulk density 500 kg/m³. Self-heat.
- IMSBC - Cryolite
Cryolite IMSBC Code cargo summary - Group C, bulk density 2900 kg/m³, angle of repose ~30°.
- IMSBC - DAP (Diammonium Phosphate)
DAP (Diammonium Phosphate) IMSBC Code cargo summary - Group C, bulk density 1050 kg/m³. Not dangerous bulk.
- IMSBC - Direct Reduced Iron (A)
Direct Reduced Iron (A) IMSBC Code cargo summary - Group B, bulk density 2800 kg/m³. Self-heat, hydrogen.
- IMSBC - Dolomite
Dolomite IMSBC Code cargo summary - Group C, bulk density 1600 kg/m³. Not hazardous.
- IMSBC - Dolomite Pellets
Dolomite Pellets IMSBC Code cargo summary - Group C, bulk density 1700 kg/m³, angle of repose ~32°.
- IMSBC - DRI (B)
DRI (B) IMSBC Code cargo summary - Group B, bulk density 2800 kg/m³. Inerting required.
- IMSBC - DRI Fines (C)
DRI Fines (C) IMSBC Code cargo summary - Group B, bulk density 2500 kg/m³. Very reactive.
- IMSBC - Feldspar
Feldspar IMSBC Code cargo summary - Group C, bulk density 1500 kg/m³. Not hazardous.
- IMSBC - Ferrite
Ferrite IMSBC Code cargo summary - Group C, bulk density 2500 kg/m³, angle of repose ~30°.
- IMSBC - Ferrochrome
Ferrochrome IMSBC Code cargo summary - Group C, bulk density 3500 kg/m³. Heavy.
- IMSBC - Ferromanganese
Ferromanganese IMSBC Code cargo summary - Group C, bulk density 3300 kg/m³. Heavy.
- IMSBC - Ferromolybdenum
Ferromolybdenum IMSBC Code cargo summary - Group C, bulk density 3500 kg/m³, angle of repose ~30°.
- IMSBC - Ferronickel
Ferronickel IMSBC Code cargo summary - Group C, bulk density 3500 kg/m³. Heavy.
- IMSBC - Ferrosilicon
Ferrosilicon IMSBC Code cargo summary - Group B, bulk density 2800 kg/m³. Water-reactive; H2/PH3.
- IMSBC - Ferrotungsten
Ferrotungsten IMSBC Code cargo summary - Group C, bulk density 3500 kg/m³, angle of repose ~30°.
- IMSBC - Fertiliser - AN (NH4NO3)
Fertiliser - AN (NH4NO3) IMSBC Code cargo summary - Group B, bulk density 900 kg/m³. Oxidiser class 5.1.
- IMSBC - Fertiliser - Urea
Fertiliser - Urea IMSBC Code cargo summary - Group C, bulk density 760 kg/m³. Not dangerous.
- IMSBC - Fishmeal
Fishmeal IMSBC Code cargo summary - Group B, bulk density 600 kg/m³. Fire; class 9.
- IMSBC - Fishmeal Flaked
Fishmeal Flaked IMSBC Code cargo summary - Group B, bulk density 500 kg/m³. Fire.
- IMSBC - Flow Moisture Point
Compute TML from flow moisture point per IMSBC 1.7 - TML = 0.9 × FMP for most Group A cargoes.
- IMSBC - Fluorspar
Fluorspar IMSBC Code cargo summary - Group A, bulk density 1600 kg/m³. Liquefaction.
- IMSBC - Fluorspar Concentrate
Fluorspar Concentrate IMSBC Code cargo summary - Group A, bulk density 1700 kg/m³, angle of repose ~30°.
- IMSBC - Fly Ash
Fly Ash IMSBC Code cargo summary - Group C, bulk density 800 kg/m³. Corrosive if wet.
- IMSBC - Glass Cullet
Glass Cullet IMSBC Code cargo summary - Group C, bulk density 1200 kg/m³. Sharp.
- IMSBC - Glass Wool Strands
Glass Wool Strands IMSBC Code cargo summary - Group B, bulk density 300 kg/m³, angle of repose ~30°.
- IMSBC - Grain - Corn
Grain - Corn IMSBC Code cargo summary - Group C, bulk density 720 kg/m³. Shift risk.
- IMSBC - Grain - Rice Bran
Grain - Rice Bran IMSBC Code cargo summary - Group B, bulk density 550 kg/m³. Self-heat.
- IMSBC - Grain - Soybeans
Grain - Soybeans IMSBC Code cargo summary - Group C, bulk density 720 kg/m³. Shift risk; heat-sensitive.
- IMSBC - Grain - Wheat
Grain - Wheat IMSBC Code cargo summary - Group C, bulk density 780 kg/m³. Shift risk - grain code.
- IMSBC - Granite Chips
Granite Chips IMSBC Code cargo summary - Group C, bulk density 1600 kg/m³, angle of repose ~32°.
- IMSBC - Granulated Slag
Granulated Slag IMSBC Code cargo summary - Group C, bulk density 1000 kg/m³. Heats when wet.
- IMSBC - Graphite
Graphite IMSBC Code cargo summary - Group C, bulk density 2200 kg/m³. Dust.
- IMSBC - Gravel Iron-bearing
Gravel Iron-bearing IMSBC Code cargo summary - Group C, bulk density 2400 kg/m³, angle of repose ~32°.
- IMSBC - Gypsum
Gypsum IMSBC Code cargo summary - Group C, bulk density 1400 kg/m³. Not hazardous.
- IMSBC - Gypsum Anhydrite
Gypsum Anhydrite IMSBC Code cargo summary - Group C, bulk density 1800 kg/m³, angle of repose ~30°.
- IMSBC - Ilmenite
Ilmenite IMSBC Code cargo summary - Group A, bulk density 2800 kg/m³. Liquefaction.
- IMSBC - Ilmenite Clay
Ilmenite Clay IMSBC Code cargo summary - Group A, bulk density 2500 kg/m³, angle of repose ~30°.
- IMSBC - Ilmenite Sand
Ilmenite Sand IMSBC Code cargo summary - Group A, bulk density 2800 kg/m³. Liquefaction.
- IMSBC - Industrial Sand
Industrial Sand IMSBC Code cargo summary - Group C, bulk density 1500 kg/m³. Dust.
- IMSBC - Iron Concentrate
Iron Concentrate IMSBC Code cargo summary - Group A, bulk density 2700 kg/m³. Liquefaction.
- IMSBC - Iron Ore
Iron Ore IMSBC Code cargo summary - Group C, bulk density 2700 kg/m³. Not hazardous; heavy.
- IMSBC - Iron Ore Fines (IOF)
Iron Ore Fines (IOF) IMSBC Code cargo summary - Group A, bulk density 2600 kg/m³. Liquefaction risk.
- IMSBC - Iron Oxide (spent)
Iron Oxide (spent) IMSBC Code cargo summary - Group B, bulk density 1800 kg/m³. Self-heat.
- IMSBC - Iron Sponge
Iron Sponge IMSBC Code cargo summary - Group B, bulk density 2200 kg/m³. Pyrophoric.
- IMSBC - Iron Swarf
Iron Swarf IMSBC Code cargo summary - Group B, bulk density 1500 kg/m³. Self-heat.
- IMSBC - Kaolin (China Clay)
Kaolin (China Clay) IMSBC Code cargo summary - Group A, bulk density 1100 kg/m³. Liquefaction.
- IMSBC - Kieselgur
Kieselgur IMSBC Code cargo summary - Group C, bulk density 700 kg/m³. Dust.
- IMSBC - Lead Concentrate
Lead Concentrate IMSBC Code cargo summary - Group A, bulk density 3200 kg/m³. Liquefaction; toxic.
- IMSBC - Lime (Hydrated)
Lime (Hydrated) IMSBC Code cargo summary - Group C, bulk density 700 kg/m³. Dust.
- IMSBC - Lime (Quicklime)
Lime (Quicklime) IMSBC Code cargo summary - Group B, bulk density 900 kg/m³. Water-reactive - heats.
- IMSBC - Lime Pebbles
Lime Pebbles IMSBC Code cargo summary - Group B, bulk density 1100 kg/m³, angle of repose ~30°.
- IMSBC - Limestone
Limestone IMSBC Code cargo summary - Group C, bulk density 1500 kg/m³. Not hazardous.
- IMSBC - Linseed
Linseed IMSBC Code cargo summary - Group B, bulk density 720 kg/m³. Self-heat.
- IMSBC - Loading Density Constraint
Check bulk-cargo load density vs tanktop allowable UDL per structural loading manual.
- IMSBC - Magnesia
Magnesia IMSBC Code cargo summary - Group C, bulk density 1500 kg/m³. Hygroscopic.
- IMSBC - Magnesite
Magnesite IMSBC Code cargo summary - Group C, bulk density 3000 kg/m³, angle of repose ~30°.
- IMSBC - Magnetite
Magnetite IMSBC Code cargo summary - Group C, bulk density 3500 kg/m³. Heavy; heats slightly when wet.
- IMSBC - Manganese Concentrate
Manganese Concentrate IMSBC Code cargo summary - Group A, bulk density 2700 kg/m³. Liquefaction.
- IMSBC - Manganese Ore
Manganese Ore IMSBC Code cargo summary - Group C, bulk density 2400 kg/m³. Heavy.
- IMSBC - MAP (Monoammonium Phosphate)
MAP (Monoammonium Phosphate) IMSBC Code cargo summary - Group C, bulk density 1050 kg/m³. Not dangerous bulk.
- IMSBC - Metal Borings (Magnesium)
Metal Borings (Magnesium) IMSBC Code cargo summary - Group B, bulk density 1600 kg/m³, angle of repose ~32°.
- IMSBC - Metal Scrap Shredded
Metal Scrap Shredded IMSBC Code cargo summary - Group C, bulk density 1800 kg/m³. Heat risk.
- IMSBC - Metal Slag (Copper)
Metal Slag (Copper) IMSBC Code cargo summary - Group C, bulk density 2200 kg/m³, angle of repose ~32°.
- IMSBC - Metal Slags (ferrous)
Metal Slags (ferrous) IMSBC Code cargo summary - Group C, bulk density 1400 kg/m³, angle of repose ~32°.
- IMSBC - Metal Sulphide Concentrates (general)
Metal Sulphide Concentrates (general) IMSBC Code cargo summary - Group A, bulk density 2800 kg/m³. Liquefaction; heat-generating.
- IMSBC - Mica
Mica IMSBC Code cargo summary - Group C, bulk density 800 kg/m³. Not hazardous.
- IMSBC - Monohydrate Ammonium Phosphate
Monohydrate Ammonium Phosphate IMSBC Code cargo summary - Group B, bulk density 1100 kg/m³. Class 9 hazard.
- IMSBC - Nickel Matte
Nickel Matte IMSBC Code cargo summary - Group C, bulk density 3400 kg/m³, angle of repose ~32°.
- IMSBC - Nickel Ore
Nickel Ore IMSBC Code cargo summary - Group A, bulk density 1500 kg/m³. High liquefaction risk.
- IMSBC - Nickel Oxide Concentrates
Nickel Oxide Concentrates IMSBC Code cargo summary - Group A, bulk density 2900 kg/m³. Liquefaction.
- IMSBC - NPK Compound
NPK Compound IMSBC Code cargo summary - Group B, bulk density 1200 kg/m³. Oxidising.
- IMSBC - Olivine Sand
Olivine Sand IMSBC Code cargo summary - Group C, bulk density 3200 kg/m³, angle of repose ~30°.
- IMSBC - Palm Kernel Expeller
Palm Kernel Expeller IMSBC Code cargo summary - Group B, bulk density 650 kg/m³. Self-heat.
- IMSBC - Palm Kernel Shells
Palm Kernel Shells IMSBC Code cargo summary - Group B, bulk density 700 kg/m³. Self-heat.
- IMSBC - Peanuts (Shelled)
Peanuts (Shelled) IMSBC Code cargo summary - Group C, bulk density 400 kg/m³, angle of repose ~32°.
- IMSBC - Peat Moss
Peat Moss IMSBC Code cargo summary - Group B, bulk density 200 kg/m³. Self-heat.
- IMSBC - Peat Moss Dried
Peat Moss Dried IMSBC Code cargo summary - Group B, bulk density 150 kg/m³, angle of repose ~30°.
- IMSBC - Perlite
Perlite IMSBC Code cargo summary - Group C, bulk density 400 kg/m³. Not hazardous.
- IMSBC - Petcoke (Uncalcined)
Petcoke (Uncalcined) IMSBC Code cargo summary - Group B, bulk density 850 kg/m³. Spontaneous heating.
- IMSBC - Phosphate (Defluorinated)
Phosphate (Defluorinated) IMSBC Code cargo summary - Group C, bulk density 1300 kg/m³, angle of repose ~32°.
- IMSBC - Phosphate Rock
Phosphate Rock IMSBC Code cargo summary - Group C, bulk density 1500 kg/m³. Dust.
- IMSBC - Pig Iron
Pig Iron IMSBC Code cargo summary - Group C, bulk density 3900 kg/m³. Heavy.
- IMSBC - Potash (MOP)
Potash (MOP) IMSBC Code cargo summary - Group C, bulk density 1100 kg/m³. Corrosive to steel.
- IMSBC - Potash Muriate
Potash Muriate IMSBC Code cargo summary - Group C, bulk density 1100 kg/m³. Corrosive steel.
- IMSBC - Potassium Chloride
Potassium Chloride IMSBC Code cargo summary - Group C, bulk density 1100 kg/m³, angle of repose ~32°.
- IMSBC - Potassium Sulphate
Potassium Sulphate IMSBC Code cargo summary - Group C, bulk density 1300 kg/m³, angle of repose ~30°.
- IMSBC - Pulp (Paper)
Pulp (Paper) IMSBC Code cargo summary - Group B, bulk density 400 kg/m³, angle of repose ~32°.
- IMSBC - Pulp Wood Chips
Pulp Wood Chips IMSBC Code cargo summary - Group B, bulk density 350 kg/m³. Self-heat, CO.
- IMSBC - Pumice
Pumice IMSBC Code cargo summary - Group C, bulk density 600 kg/m³. Not hazardous.
- IMSBC - Rapeseed Meal
Rapeseed Meal IMSBC Code cargo summary - Group B, bulk density 650 kg/m³. Self-heat.
- IMSBC - Rapeseed Pellets
Rapeseed Pellets IMSBC Code cargo summary - Group B, bulk density 700 kg/m³, angle of repose ~32°.
- IMSBC - Reduced Iron Briquettes
Reduced Iron Briquettes IMSBC Code cargo summary - Group B, bulk density 2500 kg/m³, angle of repose ~30°.
- IMSBC - Rice (in bulk)
Rice (in bulk) IMSBC Code cargo summary - Group C, bulk density 580 kg/m³. Shift.
- IMSBC - Rice Bran (B)
Rice Bran (B) IMSBC Code cargo summary - Group B, bulk density 550 kg/m³, angle of repose ~30°.
- IMSBC - Rice Husks
Rice Husks IMSBC Code cargo summary - Group B, bulk density 150 kg/m³. Dust explosion.
- IMSBC - Rock Phosphate Pebbles
Rock Phosphate Pebbles IMSBC Code cargo summary - Group C, bulk density 1600 kg/m³, angle of repose ~32°.
- IMSBC - Rock Salt
Rock Salt IMSBC Code cargo summary - Group C, bulk density 1200 kg/m³. Corrosive.
- IMSBC - Roofing Granules
Roofing Granules IMSBC Code cargo summary - Group C, bulk density 1400 kg/m³, angle of repose ~32°.
- IMSBC - Rubber Scrap
Rubber Scrap IMSBC Code cargo summary - Group B, bulk density 350 kg/m³. Self-heat.
- IMSBC - Rutile
Rutile IMSBC Code cargo summary - Group A, bulk density 2800 kg/m³. Liquefaction.
- IMSBC - Salt
Salt IMSBC Code cargo summary - Group C, bulk density 1200 kg/m³. Corrosive to steel.
- IMSBC - Salt Cake
Salt Cake IMSBC Code cargo summary - Group C, bulk density 1200 kg/m³. Corrosive.
- IMSBC - Sand Washed
Sand Washed IMSBC Code cargo summary - Group C, bulk density 1700 kg/m³, angle of repose ~30°.
- IMSBC - Sawdust
Sawdust IMSBC Code cargo summary - Group B, bulk density 200 kg/m³. Self-heat.
- IMSBC - Sawdust (Dampened)
Sawdust (Dampened) IMSBC Code cargo summary - Group B, bulk density 260 kg/m³, angle of repose ~30°.
- IMSBC - Scrap Aluminium Shredded
Scrap Aluminium Shredded IMSBC Code cargo summary - Group B, bulk density 1200 kg/m³, angle of repose ~32°.
- IMSBC - Scrap Batteries
Scrap Batteries IMSBC Code cargo summary - Group B, bulk density 1500 kg/m³. Fire; Class 9.
- IMSBC - Scrap Copper Fines
Scrap Copper Fines IMSBC Code cargo summary - Group B, bulk density 2200 kg/m³, angle of repose ~32°.
- IMSBC - Scrap Metal
Scrap Metal IMSBC Code cargo summary - Group C, bulk density 2000 kg/m³. Sharp edges; not hazardous.
- IMSBC - Seed Cake (non-hazardous)
Seed Cake (non-hazardous) IMSBC Code cargo summary - Group C, bulk density 520 kg/m³, angle of repose ~32°.
- IMSBC - Seedcake Pellets (hazardous)
Seedcake Pellets (hazardous) IMSBC Code cargo summary - Group B, bulk density 650 kg/m³, angle of repose ~32°.
- IMSBC - Serpentine
Serpentine IMSBC Code cargo summary - Group C, bulk density 2700 kg/m³, angle of repose ~30°.
- IMSBC - Silica Fume
Silica Fume IMSBC Code cargo summary - Group C, bulk density 400 kg/m³. Dust.
- IMSBC - Silica Sand
Silica Sand IMSBC Code cargo summary - Group C, bulk density 1500 kg/m³. Dust.
- IMSBC - Silicomanganese Fines
Silicomanganese Fines IMSBC Code cargo summary - Group C, bulk density 3500 kg/m³, angle of repose ~32°.
- IMSBC - Silicon Manganese
Silicon Manganese IMSBC Code cargo summary - Group C, bulk density 3800 kg/m³, angle of repose ~32°.
- IMSBC - Silicon Ores
Silicon Ores IMSBC Code cargo summary - Group C, bulk density 2400 kg/m³. Heavy.
- IMSBC - Silver Concentrate
Silver Concentrate IMSBC Code cargo summary - Group A, bulk density 2800 kg/m³. Liquefaction.
- IMSBC - Slag
Slag IMSBC Code cargo summary - Group C, bulk density 1400 kg/m³. Heats when wet.
- IMSBC - Soda Ash
Soda Ash IMSBC Code cargo summary - Group C, bulk density 900 kg/m³. Corrosive to aluminium.
- IMSBC - Soda Ash (Dense)
Soda Ash (Dense) IMSBC Code cargo summary - Group C, bulk density 1100 kg/m³, angle of repose ~32°.
- IMSBC - Sodium Nitrate
Sodium Nitrate IMSBC Code cargo summary - Group B, bulk density 1300 kg/m³. Oxidiser class 5.1.
- IMSBC - Sodium Sulphate
Sodium Sulphate IMSBC Code cargo summary - Group C, bulk density 1400 kg/m³. Not dangerous.
- IMSBC - Sodium Sulphide Anhydrous
Sodium Sulphide Anhydrous IMSBC Code cargo summary - Group B, bulk density 1500 kg/m³, angle of repose ~30°.
- IMSBC - Soya Bean Meal Extracted
Soya Bean Meal Extracted IMSBC Code cargo summary - Group B, bulk density 650 kg/m³. Self-heat.
- IMSBC - Soya Meal
Soya Meal IMSBC Code cargo summary - Group B, bulk density 650 kg/m³. Self-heat.
- IMSBC - Soybean Mash
Soybean Mash IMSBC Code cargo summary - Group B, bulk density 700 kg/m³, angle of repose ~32°.
- IMSBC - Sulphur (Granular)
Sulphur (Granular) IMSBC Code cargo summary - Group B, bulk density 1300 kg/m³. Dust explosion.
- IMSBC - Sulphur Cake (Wet)
Sulphur Cake (Wet) IMSBC Code cargo summary - Group C, bulk density 1300 kg/m³. Not hazardous if wet.
- IMSBC - Sulphur Lump
Sulphur Lump IMSBC Code cargo summary - Group B, bulk density 1300 kg/m³. Dust.
- IMSBC - Sunflower Seed Meal
Sunflower Seed Meal IMSBC Code cargo summary - Group B, bulk density 550 kg/m³. Self-heat.
- IMSBC - Sunflower Seed Pellets
Sunflower Seed Pellets IMSBC Code cargo summary - Group B, bulk density 650 kg/m³, angle of repose ~32°.
- IMSBC - Sunflower Seeds
Sunflower Seeds IMSBC Code cargo summary - Group B, bulk density 420 kg/m³, angle of repose ~32°.
- IMSBC - Superphosphate
Superphosphate IMSBC Code cargo summary - Group C, bulk density 1200 kg/m³. Acidic.
- IMSBC - Talc
Talc IMSBC Code cargo summary - Group C, bulk density 1000 kg/m³. Dust.
- IMSBC - Tapioca
Tapioca IMSBC Code cargo summary - Group C, bulk density 650 kg/m³, angle of repose ~30°.
- IMSBC - Thorium Ore
Thorium Ore IMSBC Code cargo summary - Group C, bulk density 3500 kg/m³, angle of repose ~32°.
- IMSBC - Timber
Timber IMSBC Code cargo summary - Group C, bulk density 700 kg/m³, angle of repose ~30°.
- IMSBC - Tin Concentrate
Tin Concentrate IMSBC Code cargo summary - Group A, bulk density 3200 kg/m³. Liquefaction, heavy.
- IMSBC - Tin Ore
Tin Ore IMSBC Code cargo summary - Group A, bulk density 3200 kg/m³. Liquefaction.
- IMSBC - Titanium Sponge
Titanium Sponge IMSBC Code cargo summary - Group B, bulk density 2200 kg/m³, angle of repose ~30°.
- IMSBC - Triple Superphosphate
Triple Superphosphate IMSBC Code cargo summary - Group C, bulk density 1200 kg/m³. Acidic dust.
- IMSBC - Uranium Concentrate Yellowcake
Uranium Concentrate Yellowcake IMSBC Code cargo summary - Group C, bulk density 2200 kg/m³, angle of repose ~32°.
- IMSBC - Uranium Tetrafluoride
Uranium Tetrafluoride IMSBC Code cargo summary - Group B, bulk density 3000 kg/m³, angle of repose ~30°.
- IMSBC - Urea Ammonium Nitrate
Urea Ammonium Nitrate IMSBC Code cargo summary - Group B, bulk density 1100 kg/m³. Oxidiser UN3375.
- IMSBC - Vanadium Slag
Vanadium Slag IMSBC Code cargo summary - Group C, bulk density 2500 kg/m³, angle of repose ~30°.
- IMSBC - Vermiculite
Vermiculite IMSBC Code cargo summary - Group C, bulk density 400 kg/m³. Not hazardous.
- IMSBC - Wood Chips
Wood Chips IMSBC Code cargo summary - Group B, bulk density 350 kg/m³. Self-heat; CO.
- IMSBC - Wood Logs
Wood Logs IMSBC Code cargo summary - Group C, bulk density 700 kg/m³. Shift risk.
- IMSBC - Wood Pellets
Wood Pellets IMSBC Code cargo summary - Group B, bulk density 700 kg/m³. Self-heat; CO fatalities.
- IMSBC - Wood Pulp Pellets
Wood Pulp Pellets IMSBC Code cargo summary - Group B, bulk density 700 kg/m³, angle of repose ~35°.
- IMSBC - Wood Shavings
Wood Shavings IMSBC Code cargo summary - Group B, bulk density 200 kg/m³, angle of repose ~30°.
- IMSBC - Wood Strands
Wood Strands IMSBC Code cargo summary - Group B, bulk density 200 kg/m³, angle of repose ~35°.
- IMSBC - Zinc Ash
Zinc Ash IMSBC Code cargo summary - Group B, bulk density 1500 kg/m³, angle of repose ~32°.
- IMSBC - Zinc Calcine
Zinc Calcine IMSBC Code cargo summary - Group B, bulk density 3000 kg/m³, angle of repose ~30°.
- IMSBC - Zinc Concentrate
Zinc Concentrate IMSBC Code cargo summary - Group A, bulk density 2800 kg/m³. Liquefaction.
- IMSBC - Zinc Dross
Zinc Dross IMSBC Code cargo summary - Group C, bulk density 2800 kg/m³, angle of repose ~30°.
- IMSBC - Zinc Skimmings
Zinc Skimmings IMSBC Code cargo summary - Group B, bulk density 2400 kg/m³, angle of repose ~32°.
- IMSBC - Zircon
Zircon IMSBC Code cargo summary - Group C, bulk density 2800 kg/m³. Heavy.
- IMSBC Angle of Repose
Angle of repose test (ISO 3435 / IMSBC 9.1) for Group C cargoes - governs shifting behaviour in partially filled holds.
- IMSBC Group A - Liquefaction Risk
Liquefaction risk check for a Group A cargo using TML (transportable moisture limit) vs current moisture content.
- IMSBC Group A/B/C Classification
Classify a solid bulk cargo by its IMSBC Code hazard group - A (liquefaction), B (chemical hazard), C (low hazard).
- IMSBC TML Moisture Check
Transportable Moisture Limit - maximum moisture at which a Group A cargo may be loaded. Measured vs FMP / TML.
- Inches Hg to Millibar
Convert inHg to mbar using the internationally-agreed conversion factor - the bridge between metric and Imperial marine units.
- Inches to Millimetres
Convert in to mm using the internationally-agreed conversion factor - the bridge between metric and Imperial marine units.
- Inclining Experiment - GM from Pendulum
GM result from an inclining experiment - weight shift × arm / (displacement × tan θ). Mandatory verification for new-build / major modification per SOLAS II-1 Reg. 5.
- Incoterms 2020 - Risk Transfer Point
Incoterms 2020 risk-transfer point by term - determines who insures the cargo during shipment.
- Indicated horsepower to kW
Convert ihp to kW. Precise factor for marine engine engineering; sourced from NIST / ISO / MEPC reference tables.
- Indicated Mean Effective Pressure (IMEP)
IMEP derived from indicator-card area - the fundamental input for cylinder-balance and performance-trend checks.
- Induction Motor - Starting Current Estimate
Locked-rotor (inrush) current for a squirrel-cage induction motor - the basis for switchgear sizing and generator voltage-dip calculation.
- Induction Motor Slip
Slip s = (Ns − N) / Ns - the fractional difference between synchronous and rotor speed. Directly proportional to rotor losses and torque.
- Inert Gas - O₂ ≤ 8 % Check
Check oxygen concentration in inert gas output and cargo tank atmosphere per SOLAS II-2 Reg. 4: ≤ 5 % at IG deck seal output, ≤ 8 % in any tank, positive pressure maintained.
- Inert Gas Supply Capacity Check (SOLAS II-2 Reg 32)
SOLAS requires IGS capacity ≥ 125 % of the maximum discharge rate of cargo pumps.
- Inert-Gas Plant - Required Capacity
Inert-gas plant capacity required per SOLAS II-2 Reg. 4: 125 % of the maximum combined cargo-discharge rate for all tanks simultaneously.
- Initial Turning - IMO MSC.137(76)
Initial-turning ability compliance: ship must achieve 10° heading change within 2.5 ship-lengths from rudder application.
- Injector - Fuel Injection Timing
Check actual fuel-injection advance vs design - the indicator-diagram sanity check for 2-stroke or 4-stroke engines.
- Inland Waterway Vessel Fuel & CO₂
Rhine / Danube / Mississippi / Yangtze barges and push-boats. Outside IMO CII (inland waterway exemption) but regulated nationally - CCNR Stage V in EU; EPA Tier 4 in US.
- Insulation Resistance - Meggering Check
Compare meggered insulation resistance against IEC 60092-507 minimum - 1 MΩ for < 500 V systems, higher for HV.
- Iron Ore Fines - Moisture Check
Iron Ore Fines moisture check - added to IMSBC 2013 after the Vale Beijing / Bulk Jupiter incidents. TML threshold for IOF specifically.
- IS Code - General Intact Criteria Check
Pass/fail summary of the IS Code 2008 Part A §2.2 general intact-stability criteria: area under GZ to 30°, 40°, 30-40°, GZ at 30°, angle of max GZ, and initial GM.
- IS Code - Severe-Wind & Rolling Criterion
Intact stability weather criterion (IS Code §2.3) - the dead-ship side-wind + roll assessment that governs many passenger and offshore vessels.
- ISM - DOC / SMC Audit Cycle
Document of Compliance (DOC) / Safety Management Certificate (SMC) renewal and intermediate audit cycle.
- ISM - Internal Audit Interval
ISM internal audit interval for each ship + office - at least annually per ISM Code Section 12.
- ISM - SMS Gap-Analysis Score
Gap-analysis score for an ISM SMS against Chapter IX of SOLAS - quick screening before ISM external audit.
- ISO 10307-1 - Total sediment by hot filtration
ISO 10307-1 test method - Total sediment by hot filtration. Common lab test used for marine fuel quality assessment.
- ISO 10307-2 - Potential total sediment after ageing
ISO 10307-2 test method - Potential total sediment after ageing. Common lab test used for marine fuel quality assessment.
- ISO 10370 - Carbon residue - micro method
ISO 10370 test method - Carbon residue - micro method. Common lab test used for marine fuel quality assessment.
- ISO 10816 Vibration Severity Zone
Classify a measured RMS vibration velocity against ISO 10816-3 zones A/B/C/D for machinery condition.
- ISO 12156-1 - Lubricity - HFRR wear scar
ISO 12156-1 test method - Lubricity - HFRR wear scar. Common lab test used for marine fuel quality assessment.
- ISO 12185 - Density by oscillating U-tube
ISO 12185 test method - Density by oscillating U-tube. Common lab test used for marine fuel quality assessment.
- ISO 12937 - Water by Karl Fischer coulometric
ISO 12937 test method - Water by Karl Fischer coulometric. Common lab test used for marine fuel quality assessment.
- ISO 14596 - Sulphur by WD-XRF
ISO 14596 test method - Sulphur by WD-XRF. Common lab test used for marine fuel quality assessment.
- ISO 15013 - Heat-transfer fluid specification
ISO 15013 test method - Heat-transfer fluid specification. Common lab test used for marine fluids quality assessment.
- ISO 19030 Performance Indicator
Speed-loss percentage vs reference-period baseline - the ISO 19030 Part 2 hull-and-propeller performance metric.
- ISO 19458 - Water sampling for microbiology
ISO 19458 test method - Water sampling for microbiology. Common lab test used for marine water quality assessment.
- ISO 3014 - Fuel stability reserve test
ISO 3014 test method - Fuel stability reserve test. Common lab test used for marine fuel quality assessment.
- ISO 3104 - Kinematic viscosity
ISO 3104 test method - Kinematic viscosity. Common lab test used for marine fuel quality assessment.
- ISO 3170 - Manual sampling
ISO 3170 test method - Manual sampling. Common lab test used for marine fuel quality assessment.
- ISO 3171 - Automatic sampling
ISO 3171 test method - Automatic sampling. Common lab test used for marine fuel quality assessment.
- ISO 3448 - ISO viscosity grades
ISO 3448 test method - ISO viscosity grades. Common lab test used for marine lube quality assessment.
- ISO 3675 - Density by hydrometer
ISO 3675 test method - Density by hydrometer. Common lab test used for marine fuel quality assessment.
- ISO 3733 - Water content - distillation method
ISO 3733 test method - Water content - distillation method. Common lab test used for marine fuel quality assessment.
- ISO 4406 - Cleanliness - solid contamination code
ISO 4406 test method - Cleanliness - solid contamination code. Common lab test used for marine lube quality assessment.
- ISO 8178 - Emission test cycles (E1/E2/E3/D2)
ISO 8178 test method - Emission test cycles (E1/E2/E3/D2). Common lab test used for marine emissions quality assessment.
- ISO 8217 - DMA Parameter Check
Check distillate marine fuel (DMA grade) parameters - kinematic viscosity, density, flash, pour, and sulphur against ISO 8217:2017 limits.
- ISO 8217 - Petroleum product specifications
ISO 8217 test method - Petroleum product specifications. Common lab test used for marine fuel quality assessment.
- ISO VG ↔ SAE Viscosity Grade
Approximate mapping between ISO VG grade numbers (viscosity at 40 °C) and SAE J300 engine-oil / gear-oil grades.
- ISPS - Port Facility Security Level
Port-facility / ship security level (1-3) declaration per ISPS Code Part A - the baseline for security measures.
- Istanbul (Ambarli) (TR) - Port Card
Istanbul (Ambarli), TR - annual throughput ~110,000 TEU, max draft 14 m. Bosphorus.
- ITTC 1957 - Friction Coefficient
Flat-plate friction coefficient per ITTC 1957 formula - the basis for model-to-ship extrapolation of frictional resistance.
- ITTC-57 Friction Coefficient
The agreed frictional-resistance coefficient in model-to-ship correlation.
- Jackup Rig Fuel & CO₂
Self-elevating jackup MODUs. Outside CII scope; per-operating-day intensity is the North Sea / Gulf of Mexico benchmark.
- Jakarta (Tanjung Priok) (ID) - Port Card
Jakarta (Tanjung Priok), ID - annual throughput ~80,000 TEU, max draft 14 m. Indonesia Java.
- Jeddah (SA) - Port Card
Jeddah, SA - annual throughput ~120,000 TEU, max draft 16 m. Red Sea.
- JONSWAP Peak Frequency
Peak angular frequency of the JONSWAP spectrum: ω_p = 22 (g²/(V·F))^(1/3).
- Joukowsky Surge Pressure
Water-hammer pressure rise from instantaneous valve closure. Δp = ρ · c · Δv.
- Journal Bearing - Minimum Film Thickness
Minimum oil-film thickness in a journal bearing - Sommerfeld-based approximation for safe operation.
- Jubail (SA) - Port Card
Jubail, SA - annual throughput ~100,000 TEU, max draft 15 m. KSA industrial.
- Just-in-Time Arrival
Fuel saving from converting anchor-wait time into slower steaming time.
- Just-In-Time Arrival - Economic Speed
Speed and fuel savings from slowing down to match a pilot-boarding slot instead of steaming full-speed then waiting at anchor - per IMO MEPC.323(74) GreenVoyage / JIT initiative.
- Kaohsiung (TW) - Port Card
Kaohsiung, TW - annual throughput ~190,000 TEU, max draft 16 m. Taiwan strait.
- Karachi (PK) - Port Card
Karachi, PK - annual throughput ~80,000 TEU, max draft 12 m. Pakistan.
- Kawasaki Kawasaki MAN-B&W 6G35ME-C9 - MCR per Cylinder
Kawasaki Kawasaki MAN-B&W 6G35ME-C9 engine card: 2300 kW per cylinder at 130 rpm, SFOC 175 g/kWh.
- Keller - Cavitation Criterion
Minimum blade-area ratio A_E/A_0 to avoid cavitation per Keller formula - the screening calculation for propeller sizing given thrust and shaft depth.
- Kelvin to Celsius
Convert K to °C using the internationally-agreed conversion factor - the bridge between metric and Imperial marine units.
- Kelvin to Fahrenheit
Convert K to °F. Precise factor for marine general engineering; sourced from NIST / ISO / MEPC reference tables.
- KG Limit - Intact (from GM-required)
Maximum allowable KG (fluid) for an intact condition given KM at the draft and the required minimum GM.
- Khor Fakkan (AE) - Port Card
Khor Fakkan, AE - annual throughput ~150,000 TEU, max draft 17 m. Outside Strait of Hormuz.
- Kilocalories to Kilojoules
Convert kcal to kJ using the internationally-agreed conversion factor - the bridge between metric and Imperial marine units.
- Kilograms to Pounds
Convert kg to lb using the internationally-agreed conversion factor - the bridge between metric and Imperial marine units.
- Kilometres to Nautical Miles
Convert km to nm using the internationally-agreed conversion factor - the bridge between metric and Imperial marine units.
- Kilonewtons to Kilogram-force
Convert kN to kgf using the internationally-agreed conversion factor - the bridge between metric and Imperial marine units.
- Kilowatt-hours to Megajoules
Convert kWh to MJ using the internationally-agreed conversion factor - the bridge between metric and Imperial marine units.
- Kilowatts to Horsepower (mech)
Convert kW to hp using the internationally-agreed conversion factor - the bridge between metric and Imperial marine units.
- Kilowatts to Metric Horsepower
Convert kW to mhp using the internationally-agreed conversion factor - the bridge between metric and Imperial marine units.
- Kinematic to Dynamic Viscosity
Convert cSt to cP using the internationally-agreed conversion factor - the bridge between metric and Imperial marine units.
- Kinematic viscosity units equivalence
Convert mm²/s to cSt. Precise factor for marine fuel engineering; sourced from NIST / ISO / MEPC reference tables.
- km/h to Knots
Convert km/h to kn using the internationally-agreed conversion factor - the bridge between metric and Imperial marine units.
- Knots to km per day
Convert knot to km/day. Precise factor for marine navigation engineering; sourced from NIST / ISO / MEPC reference tables.
- Knots to km/h
Convert kn to km/h using the internationally-agreed conversion factor - the bridge between metric and Imperial marine units.
- Knots to m/s
Convert kn to m/s using the internationally-agreed conversion factor - the bridge between metric and Imperial marine units.
- Kobe (JP) - Port Card
Kobe, JP - annual throughput ~120,000 TEU, max draft 14 m. Container + auto.
- Kochi (IN) - Port Card
Kochi, IN - annual throughput ~70,000 TEU, max draft 13 m. India south.
- kW to million BTU per hour
Convert kW to MBTU/h. Precise factor for marine energy engineering; sourced from NIST / ISO / MEPC reference tables.
- L/s to m³/h
Convert l/s to m³/h using the internationally-agreed conversion factor - the bridge between metric and Imperial marine units.
- Lagos (Tin Can/Apapa) (NG) - Port Card
Lagos (Tin Can/Apapa), NG - annual throughput ~80,000 TEU, max draft 13 m. Nigeria.
- Las Palmas (ES) - Port Card
Las Palmas, ES - annual throughput ~90,000 TEU, max draft 14 m. Atlantic bunker.
- Latent Heat of Vaporisation
Enthalpy of vaporisation h_fg at a given pressure - the heat required to turn 1 kg of saturated water into 1 kg of saturated steam.
- Latitude from Polaris
Latitude from a Polaris altitude using the a₀ + a₁ + a₂ Nautical Almanac corrections.
- Laytime - NOR Tendering
NOR (Notice of Readiness) valid tendering - ship must be at the agreed place, ready in all respects, within office hours.
- Laytime / Demurrage - Days & USD
Laytime used vs allowed and demurrage payable from days-on-demurrage at the charter-party daily rate - the fundamental charter calculation.
- Laytime Used
Laytime used = arrival to completion minus excepted periods. Compare against CP-allowed laytime to determine demurrage/despatch.
- LCV from ISO 8217 Analysis
Estimate the lower calorific value of a marine fuel from a short assay (density, water, sulphur, ash) per ASTM D4868 / ISO 8217 Annex G. The IMO DCS fallback when direct bomb-calorimeter data is missing.
- League to nautical miles
Convert league to nm. Precise factor for marine navigation engineering; sourced from NIST / ISO / MEPC reference tables.
- Leeway Angle
Approximate leeway angle from the beam-wind component and ship speed, using the rule of thumb: leeway (°) = wind speed / ship speed × f.
- Length Converter
Convert between metres, feet, nautical miles, statute miles, cables, fathoms, yards.
- Lifeboat - Falls Load Test
Lifeboat-falls load-test compliance - 1.1 × lifeboat + full complement, performed at 5-yearly interval per LSA Code / MSC.402(96).
- Lifeboat Capacity - SOLAS LSA Check
Check total lifeboat capacity against 125 % of the largest population to be carried per SOLAS III Reg. 21 / LSA Code - the standard lifeboat-coverage calculation.
- Lifeboat Capacity Verification (SOLAS III Reg 31)
Check that lifeboat capacity meets the 100 %-each-side rule (cargo ships) - aggregate capacity must cover 100 % POB on each side independently.
- Lifeboat Fuel - 24 h Autonomy
Lifeboat fuel-tank sizing for ≥ 24 h continuous autonomy per LSA Code 4.4.6 - includes 25 % safety margin.
- Lifeboat Release Hook - Upgrade
Lifeboat on-load release-hook upgrade requirement per SOLAS III Reg. 20.11 - all ships must upgrade to compliant hooks by 2019.
- Lifebuoys - Distribution & Lights
Lifebuoy count and light requirements per SOLAS III Reg. 32 - a function of vessel length.
- Lifejacket Count (SOLAS III Reg 7)
Minimum number of lifejackets: 100 % POB + 5 % spares on passenger ships + 10 % child-size where children present.
- Liferaft - Servicing Interval
Liferaft servicing interval per LSA Code Ch. 4 - 12 months annual service; 5-yearly deep service by approved station.
- Liferafts - Distribution Check
Liferaft capacity vs persons on board per SOLAS III Reg. 31 - each side carries ≥ 50 % POB in inflatable / rigid rafts.
- List Angle from Transverse Weight Shift
List angle in degrees resulting from a transverse weight shift on board - tan θ = w·d/(Δ·GM).
- List from Off-Centre Weight Addition
Static list when a weight is added at a transverse offset from the centreline, after accounting for the new KG and displacement.
- List from Weight Shift
Static heel when a weight is moved transversely.
- Litres to Cubic Feet
Convert l to ft³ using the internationally-agreed conversion factor - the bridge between metric and Imperial marine units.
- Livestock Carrier CII
General-cargo reference under MEPC.337 applies. Ventilation + water-supply aux load makes this fleet CII-sensitive.
- Lloyd Seakeeping Criteria - Pass Check
Lloyd 1989 seakeeping criteria pass / fail check - integrated operability assessment of roll, pitch and vertical acceleration.
- Lloyd's Register ECO Notation
Descriptive notation using individual letter tags for environmental features.
- LNG - Boil-off Rate Calc
LNG boil-off rate estimate from tank surface heat-gain and insulation U-value - screens BOG management design.
- LNG - Core Properties
LNG reference fuel card - NCV, density, CO₂ factor for energy-budget and emission calculations.
- LNG - NCV / Density / Tankage
LNG fuel: energy content, liquid density, and equivalent tank size compared to VLSFO - the tank-sizing step for DF conversions.
- LNG BOG Compressor - Shaft Power
Adiabatic shaft-power estimate for a boil-off gas (BOG) compressor handling methane from atmospheric tank vapour to the DF-engine supply pressure.
- LNG BOG Reliquefaction - Duty
BOG reliquefaction plant duty for an LNG carrier with steam-free electric propulsion - sized for continuous laden BOR.
- LNG Boil-Off Rate from Heat Ingress
Daily BOR from tank surface, U-value and temperature drop - useful cross-check against trial-measured BOR.
- LNG Carrier CII
LNGCs use a unique flat MEPC.337 reference line (a=9827, c=0) reflecting the narrow size range and homogenous trading patterns.
- LNG Density - Klosek-McKinley
Liquid density of LNG at cargo-tank temperature using the Klosek-McKinley corresponding-states method - the custody-transfer default for LNG cargo measurement.
- LNG GCU - Required Capacity
Minimum Gas Combustion Unit (GCU) heat-release rate required to burn 100 % of boil-off gas at laden-passage conditions with the DF engines unavailable.
- LNG Gross Calorific Value - ISO 6976
Mass-based gross calorific value (HHV) of an LNG cargo from gas-chromatograph composition per ISO 6976:2016 - the reference method for invoice energy on LNG bills of lading.
- LNG Heel for Return Voyage
Minimum LNG heel to keep cargo tanks cold during ballast leg, allowing next load without full cool-down.
- LNG m³ liquid to kg (approx)
Convert m³ gas to kg LNG. Precise factor for marine gas engineering; sourced from NIST / ISO / MEPC reference tables.
- LNG m³ to MMBtu energy
Convert m³ gas to MMBtu. Precise factor for marine gas engineering; sourced from NIST / ISO / MEPC reference tables.
- LNG Methane Slip - GWP20 / GWP100 GHG
Methane-slip-corrected GHG footprint of an LNG DF engine using GWP_20 and GWP_100 factors - reveals the well-to-wake penalty of unburnt CH₄.
- LNG STS Bunkering - Transfer Time
Ship-to-ship LNG bunker transfer time given bunker volume and max pump rate - basis for operational planning and WTW compliance analytics.
- LNG Tank - Displacement Purge Volume
Nitrogen volume required for a displacement (layered, density-driven) purge - used to inert LNG cargo tanks before gassing-up, ~1.05× tank volume when well-controlled.
- LNG Tank - Secondary Barrier Requirement
Secondary barrier carriage requirement per IGC Code Ch. 4 - driven by tank type + pressure.
- LNG Tank Cool-Down Time
Approximate time to cool tank structure from ambient to −162 °C using LNG spray injection.
- LNG Tank Inerting - Dilution Purge Volume
Nitrogen volume required to dilute an LNG cargo tank from initial O₂/HC concentration down to the target using a dilution (well-mixed) purge - the baseline method when displacement cannot be guaranteed.
- LNG Type C - MARVS Setpoint
Typical MARVS setting for LNG Type C fuel tanks - usually 7–10 bar(g) balanced against insulation limit.
- LNG-Gulf-Asia - Sabine Pass → Tokyo Bay
LNG-Gulf-Asia benchmark route for LNGC 174k: Sabine Pass → Tokyo Bay. Rate × distance → TCE.
- LNG-Gulf-NWE - Sabine Pass → Isle of Grain
LNG-Gulf-NWE benchmark route for LNGC 174k: Sabine Pass → Isle of Grain. Rate × distance → TCE.
- LNG-Qatar-Asia - Ras Laffan → Incheon
LNG-Qatar-Asia benchmark route for LNGC 174k: Ras Laffan → Incheon. Rate × distance → TCE.
- LO Filter - Differential-Pressure Alarm
Lube-oil filter differential-pressure alarm and change-out threshold per OEM guidance - typically 0.8 bar alarm and 1.2 bar change-out for 2-stroke slow-speed engines.
- Load Line - Seasonal Marks Check
Load-line seasonal mark (S, W, T, F, TF, WNA) applicable for the ship's voyage - a function of Load Line Zone and date.
- Local Time ↔ UTC Conversion
Convert local time to UTC given zone description / longitude - the basis for navigational time-keeping and chronometer corrections.
- Log Mean Temperature Difference (LMTD)
LMTD for counter-flow / parallel-flow heat exchangers. The design temperature difference that goes into Q = U·A·LMTD.
- Lomé (TG) - Port Card
Lomé, TG - annual throughput ~60,000 TEU, max draft 15 m. West Africa hub.
- Long Beach (US) - Port Card
Long Beach, US - annual throughput ~180,000 TEU, max draft 17 m. Next to LA.
- Long Tons to Metric
Convert lt to t using the internationally-agreed conversion factor - the bridge between metric and Imperial marine units.
- Los Angeles (US) - Port Card
Los Angeles, US - annual throughput ~190,000 TEU, max draft 17 m. US West largest.
- Lower Stool - Required Thickness
Required lower-stool top-plate thickness for a bulk-carrier corrugated bulkhead - a screening sizing formula after Erika / Derbyshire.
- LPG / Gas Carrier CII
Two-size reference-line regime for LPG / ethylene / ammonia carriers.
- LPG Propane - Core Properties
LPG Propane reference fuel card - NCV, density, CO₂ factor for energy-budget and emission calculations.
- LPG Reliquefaction COP
Simplified reliquefaction plant COP - boil-off absorbed / electrical compressor power.
- LR - CAC (Cargo air)
LR class notation CAC - Cargo air. Eligibility + survey-scope check.
- LR - CCS (Cargo control)
LR class notation CCS - Cargo control. Eligibility + survey-scope check.
- LR - COW(LR1) (Crude oil washing)
LR class notation COW(LR1) - Crude oil washing. Eligibility + survey-scope check.
- LR - Descriptive Note LNG (LNG DF)
LR class notation Descriptive Note LNG - LNG DF. Eligibility + survey-scope check.
- LR - ENV (Enhanced environmental)
LR class notation ENV - Enhanced environmental. Eligibility + survey-scope check.
- LR - IBT (Integrated bridge)
LR class notation IBT - Integrated bridge. Eligibility + survey-scope check.
- LR - IGS (Inert gas)
LR class notation IGS - Inert gas. Eligibility + survey-scope check.
- LR - IWS (In-water survey)
LR class notation IWS - In-water survey. Eligibility + survey-scope check.
- LR - PCWBT (Coating ballast)
LR class notation PCWBT - Coating ballast. Eligibility + survey-scope check.
- LR - SDA (Structural design)
LR class notation SDA - Structural design. Eligibility + survey-scope check.
- LR - Smart (Smart ship)
LR class notation Smart - Smart ship. Eligibility + survey-scope check.
- LR LNG-Ready Notation
Lloyd's Register LNG-Ready 1-2-3 levels mirroring DNV's Gas Ready.
- LRIT - Reporting Interval
LRIT reporting interval per SOLAS V Reg. 19-1 - 4 reports per day standard, 15-minute on request.
- Luanda (AO) - Port Card
Luanda, AO - annual throughput ~40,000 TEU, max draft 14 m. Angola.
- Lube Oil TAN / Water - Condition Check
Condition monitoring pass/fail for Total Acid Number (TAN) and water content against typical marine system-oil limits.
- Lube TBN - Depletion Rate
Cylinder-oil TBN depletion rate based on fuel sulphur content and feed rate - the basis for selecting 40/70/100/140 BN grades.
- m/s to Knots
Convert m/s to kn using the internationally-agreed conversion factor - the bridge between metric and Imperial marine units.
- m³/h to CFM
Convert m³/h to ft³/min. Precise factor for marine hvac engineering; sourced from NIST / ISO / MEPC reference tables.
- m³/h to L/s
Convert m³/h to l/s using the internationally-agreed conversion factor - the bridge between metric and Imperial marine units.
- m³/h to US gpm
Convert m³/h to USgpm using the internationally-agreed conversion factor - the bridge between metric and Imperial marine units.
- MAN ES 8L58/64 - MCR per Cylinder
MAN ES 8L58/64 engine card: 1870 kW per cylinder at 428 rpm, SFOC 182 g/kWh.
- MAN ES 9L58/64 - MCR per Cylinder
MAN ES 9L58/64 engine card: 1870 kW per cylinder at 428 rpm, SFOC 182 g/kWh.
- MAN ES G45ME-C9.5 - MCR per Cylinder
MAN ES G45ME-C9.5 baseline: 2250 kW per cylinder at 104 rpm, SFOC 165 g/kWh. Compute MCR + fuel for given cylinder count.
- MAN ES G50ME-C9.5 - MCR per Cylinder
MAN ES G50ME-C9.5 baseline: 2780 kW per cylinder at 100 rpm, SFOC 164 g/kWh. Compute MCR + fuel for given cylinder count.
- MAN ES G60ME-C9.5 - MCR per Cylinder
MAN ES G60ME-C9.5 baseline: 4170 kW per cylinder at 87 rpm, SFOC 163 g/kWh. Compute MCR + fuel for given cylinder count.
- MAN ES G70ME-C10.5 - MCR per Cylinder
MAN ES G70ME-C10.5 baseline: 5720 kW per cylinder at 76 rpm, SFOC 162 g/kWh. Compute MCR + fuel for given cylinder count.
- MAN ES G80ME-C10.5 - MCR per Cylinder
MAN ES G80ME-C10.5 baseline: 7760 kW per cylinder at 68 rpm, SFOC 161 g/kWh. Compute MCR + fuel for given cylinder count.
- MAN ES G80ME-GI 9.7 - MCR per Cylinder
MAN ES G80ME-GI 9.7 engine card: 7760 kW per cylinder at 68 rpm, SFOC 157 g/kWh.
- MAN ES G90ME-C10.5 - MCR per Cylinder
MAN ES G90ME-C10.5 baseline: 10000 kW per cylinder at 73 rpm, SFOC 160 g/kWh. Compute MCR + fuel for given cylinder count.
- MAN ES G95ME-C9.5 - MCR per Cylinder
MAN ES G95ME-C9.5 baseline: 10900 kW per cylinder at 80 rpm, SFOC 160 g/kWh. Compute MCR + fuel for given cylinder count.
- MAN ES L32/44CR - MCR per Cylinder
MAN ES L32/44CR baseline: 580 kW per cylinder at 720 rpm, SFOC 183 g/kWh. Compute MCR + fuel for given cylinder count.
- MAN ES L42DF - MCR per Cylinder
MAN ES L42DF baseline: 1080 kW per cylinder at 514 rpm, SFOC 180 g/kWh. Compute MCR + fuel for given cylinder count.
- MAN ES L48/60CR - MCR per Cylinder
MAN ES L48/60CR baseline: 1260 kW per cylinder at 500 rpm, SFOC 182 g/kWh. Compute MCR + fuel for given cylinder count.
- MAN ES L51/60DF - MCR per Cylinder
MAN ES L51/60DF baseline: 1500 kW per cylinder at 500 rpm, SFOC 181 g/kWh. Compute MCR + fuel for given cylinder count.
- MAN ES L58/64 - MCR per Cylinder
MAN ES L58/64 baseline: 1870 kW per cylinder at 428 rpm, SFOC 182 g/kWh. Compute MCR + fuel for given cylinder count.
- MAN ES S26MC - MCR per Cylinder
MAN ES S26MC baseline: 850 kW per cylinder at 250 rpm, SFOC 174 g/kWh. Compute MCR + fuel for given cylinder count.
- MAN ES S35MC7 - MCR per Cylinder
MAN ES S35MC7 baseline: 1630 kW per cylinder at 167 rpm, SFOC 170 g/kWh. Compute MCR + fuel for given cylinder count.
- MAN ES S40ME-B9.5 - MCR per Cylinder
MAN ES S40ME-B9.5 baseline: 2000 kW per cylinder at 146 rpm, SFOC 165 g/kWh. Compute MCR + fuel for given cylinder count.
- MAN ES S46ME-B8.5 - MCR per Cylinder
MAN ES S46ME-B8.5 baseline: 2660 kW per cylinder at 129 rpm, SFOC 164 g/kWh. Compute MCR + fuel for given cylinder count.
- MAN ES S50ME-B9.5 - MCR per Cylinder
MAN ES S50ME-B9.5 baseline: 3195 kW per cylinder at 117 rpm, SFOC 163 g/kWh. Compute MCR + fuel for given cylinder count.
- MAN ES S50ME-LGIA - MCR per Cylinder
MAN ES S50ME-LGIA engine card: 3195 kW per cylinder at 117 rpm, SFOC 160 g/kWh.
- MAN ES S50ME-LGIP - MCR per Cylinder
MAN ES S50ME-LGIP engine card: 3195 kW per cylinder at 117 rpm, SFOC 159 g/kWh.
- MAN ES S60ME-B8.5 - MCR per Cylinder
MAN ES S60ME-B8.5 baseline: 4610 kW per cylinder at 97 rpm, SFOC 162 g/kWh. Compute MCR + fuel for given cylinder count.
- MAN ES S60ME-GI - MCR per Cylinder
MAN ES S60ME-GI engine card: 4610 kW per cylinder at 97 rpm, SFOC 159 g/kWh.
- MAN ES S60ME-LGIM - MCR per Cylinder
MAN ES S60ME-LGIM engine card: 4610 kW per cylinder at 97 rpm, SFOC 160 g/kWh.
- MAN ES S65ME-C8.5 - MCR per Cylinder
MAN ES S65ME-C8.5 baseline: 5230 kW per cylinder at 95 rpm, SFOC 162 g/kWh. Compute MCR + fuel for given cylinder count.
- MAN ES S70ME-C8.5 - MCR per Cylinder
MAN ES S70ME-C8.5 baseline: 5970 kW per cylinder at 91 rpm, SFOC 161 g/kWh. Compute MCR + fuel for given cylinder count.
- MAN ES S70ME-GI - MCR per Cylinder
MAN ES S70ME-GI engine card: 5970 kW per cylinder at 91 rpm, SFOC 158 g/kWh.
- MAN ES S80ME-C9.5 - MCR per Cylinder
MAN ES S80ME-C9.5 baseline: 7690 kW per cylinder at 78 rpm, SFOC 160 g/kWh. Compute MCR + fuel for given cylinder count.
- MAN ES S90ME-C10.5 - MCR per Cylinder
MAN ES S90ME-C10.5 baseline: 9400 kW per cylinder at 72 rpm, SFOC 159 g/kWh. Compute MCR + fuel for given cylinder count.
- MAN ES V48/60B - MCR per Cylinder
MAN ES V48/60B baseline: 1260 kW per cylinder at 500 rpm, SFOC 182 g/kWh. Compute MCR + fuel for given cylinder count.
- MAN ES V51/60DF - MCR per Cylinder
MAN ES V51/60DF baseline: 1500 kW per cylinder at 500 rpm, SFOC 181 g/kWh. Compute MCR + fuel for given cylinder count.
- Manila (PH) - Port Card
Manila, PH - annual throughput ~70,000 TEU, max draft 13 m. Philippines.
- Marginal Abatement Cost
Per-measure cost of CO₂ abatement in USD per tonne CO₂ avoided. The building block for a fleet-level MAC curve.
- MARPOL - Fuel Oil Sampling
MARPOL representative fuel-oil sample retention per Annex VI Reg. 18 - bunker delivery note + sample 1 year onboard.
- MARPOL Annex I/12 - Tanks for oil residues
MARPOL Annex I/12 - Tanks for oil residues. Scope and compliance baseline.
- MARPOL Annex I/12A - Fuel oil tank protection
MARPOL Annex I/12A - Fuel oil tank protection. Scope and compliance baseline.
- MARPOL Annex I/14 - Oil filtering equipment
MARPOL Annex I/14 - Oil filtering equipment. Scope and compliance baseline.
- MARPOL Annex I/15 - Control of discharge
MARPOL Annex I/15 - Control of discharge. Scope and compliance baseline.
- MARPOL Annex I/17 - Oil record book Part I
MARPOL Annex I/17 - Oil record book Part I. Scope and compliance baseline.
- MARPOL Annex I/18 - Segregated ballast oil tankers
MARPOL Annex I/18 - Segregated ballast oil tankers. Scope and compliance baseline.
- MARPOL Annex I/19 - Double hull
MARPOL Annex I/19 - Double hull. Scope and compliance baseline.
- MARPOL Annex I/20 - Condition assessment
MARPOL Annex I/20 - Condition assessment. Scope and compliance baseline.
- MARPOL Annex I/22 - Pumping piping arrangements
MARPOL Annex I/22 - Pumping piping arrangements. Scope and compliance baseline.
- MARPOL Annex I/23 - Accidental oil outflow
MARPOL Annex I/23 - Accidental oil outflow. Scope and compliance baseline.
- MARPOL Annex I/27 - Intact stability
MARPOL Annex I/27 - Intact stability. Scope and compliance baseline.
- MARPOL Annex I/28 - Subdivision damage stability
MARPOL Annex I/28 - Subdivision damage stability. Scope and compliance baseline.
- MARPOL Annex I/29 - Slop tanks
MARPOL Annex I/29 - Slop tanks. Scope and compliance baseline.
- MARPOL Annex I/30 - Pumping piping offshore
MARPOL Annex I/30 - Pumping piping offshore. Scope and compliance baseline.
- MARPOL Annex I/33 - Crude oil washing
MARPOL Annex I/33 - Crude oil washing. Scope and compliance baseline.
- MARPOL Annex I/34 - Control oil discharge at sea
MARPOL Annex I/34 - Control oil discharge at sea. Scope and compliance baseline.
- MARPOL Annex I/36 - Oil Record Book Part II
MARPOL Annex I/36 - Oil Record Book Part II. Scope and compliance baseline.
- MARPOL Annex I/37 - Shipboard Oil Pollution Emergency Plan
MARPOL Annex I/37 - Shipboard Oil Pollution Emergency Plan. Scope and compliance baseline.
- MARPOL Annex I/38 - Reception facilities oil
MARPOL Annex I/38 - Reception facilities oil. Scope and compliance baseline.
- MARPOL Annex I/4 - Oil discharge
MARPOL Annex I/4 - Oil discharge. Scope and compliance baseline.
- MARPOL Annex II - NLS Discharge Compliance
Noxious Liquid Substance discharge compliance check per MARPOL Annex II - distance from land, depth, en-route speed, and residue concentration.
- MARPOL Annex II Category X/Y/Z Assignment
Classify a chemical cargo by MARPOL Annex II hazard category. Drives prewash, stripping and discharge-distance requirements.
- MARPOL Annex II/10 - International pollution prevention cert NLS
MARPOL Annex II/10 - International pollution prevention cert NLS. Scope and compliance baseline.
- MARPOL Annex II/11 - Duration of certificate
MARPOL Annex II/11 - Duration of certificate. Scope and compliance baseline.
- MARPOL Annex II/13 - Control of discharge residues
MARPOL Annex II/13 - Control of discharge residues. Scope and compliance baseline.
- MARPOL Annex II/14 - Shipboard marine pollution plan NLS
MARPOL Annex II/14 - Shipboard marine pollution plan NLS. Scope and compliance baseline.
- MARPOL Annex II/15 - P&A Manual
MARPOL Annex II/15 - P&A Manual. Scope and compliance baseline.
- MARPOL Annex II/16 - Cargo Record Book
MARPOL Annex II/16 - Cargo Record Book. Scope and compliance baseline.
- MARPOL Annex II/17 - Cargo segregation
MARPOL Annex II/17 - Cargo segregation. Scope and compliance baseline.
- MARPOL Annex II/3 - Exceptions (NLS)
MARPOL Annex II/3 - Exceptions (NLS). Scope and compliance baseline.
- MARPOL Annex II/5 - NLS discharge prohibition
MARPOL Annex II/5 - NLS discharge prohibition. Scope and compliance baseline.
- MARPOL Annex II/6 - Exceptions NLS special area
MARPOL Annex II/6 - Exceptions NLS special area. Scope and compliance baseline.
- MARPOL Annex II/7 - Reception facilities NLS
MARPOL Annex II/7 - Reception facilities NLS. Scope and compliance baseline.
- MARPOL Annex II/8 - Measures control
MARPOL Annex II/8 - Measures control. Scope and compliance baseline.
- MARPOL Annex II/9 - Survey certificates NLS
MARPOL Annex II/9 - Survey certificates NLS. Scope and compliance baseline.
- MARPOL Annex III - Packaged Harmful Substances
Packaged harmful-substances (marine pollutant) check per MARPOL Annex III - marking, stowage, documentation.
- MARPOL Annex III/3 - General packaged HS
MARPOL Annex III/3 - General packaged HS. Scope and compliance baseline.
- MARPOL Annex III/4 - Marking and labelling
MARPOL Annex III/4 - Marking and labelling. Scope and compliance baseline.
- MARPOL Annex III/5 - Documentation HS
MARPOL Annex III/5 - Documentation HS. Scope and compliance baseline.
- MARPOL Annex III/6 - Stowage
MARPOL Annex III/6 - Stowage. Scope and compliance baseline.
- MARPOL Annex III/7 - Quantity limitations HS
MARPOL Annex III/7 - Quantity limitations HS. Scope and compliance baseline.
- MARPOL Annex III/8 - Exceptions HS
MARPOL Annex III/8 - Exceptions HS. Scope and compliance baseline.
- MARPOL Annex III/9 - Port state control HS
MARPOL Annex III/9 - Port state control HS. Scope and compliance baseline.
- MARPOL Annex IV Sewage Discharge
Minimum distance from land and rate/speed limits for sewage discharge per MARPOL Annex IV.
- MARPOL Annex IV/11 - Discharge of sewage
MARPOL Annex IV/11 - Discharge of sewage. Scope and compliance baseline.
- MARPOL Annex IV/12 - Reception facilities sewage
MARPOL Annex IV/12 - Reception facilities sewage. Scope and compliance baseline.
- MARPOL Annex IV/12A - Passenger ships special areas
MARPOL Annex IV/12A - Passenger ships special areas. Scope and compliance baseline.
- MARPOL Annex IV/3 - Exceptions (sewage)
MARPOL Annex IV/3 - Exceptions (sewage). Scope and compliance baseline.
- MARPOL Annex IV/9 - Sewage system - options
MARPOL Annex IV/9 - Sewage system - options. Scope and compliance baseline.
- MARPOL Annex V - Garbage Disposal Check
Allowable garbage discharge verification - which categories may be disposed at sea given distance from land and special-area designation per MARPOL Annex V.
- MARPOL Annex V Garbage Discharge Distance
Legal discharge distances from nearest land for various garbage categories per MARPOL Annex V (as amended).
- MARPOL Annex V/10 - Garbage Record Book
MARPOL Annex V/10 - Garbage Record Book. Scope and compliance baseline.
- MARPOL Annex V/3 - Garbage disposal general
MARPOL Annex V/3 - Garbage disposal general. Scope and compliance baseline.
- MARPOL Annex V/4 - Cargo residues garbage
MARPOL Annex V/4 - Cargo residues garbage. Scope and compliance baseline.
- MARPOL Annex V/5 - Incineration
MARPOL Annex V/5 - Incineration. Scope and compliance baseline.
- MARPOL Annex V/6 - Reception facilities garbage
MARPOL Annex V/6 - Reception facilities garbage. Scope and compliance baseline.
- MARPOL Annex V/7 - Exceptions garbage
MARPOL Annex V/7 - Exceptions garbage. Scope and compliance baseline.
- MARPOL Annex V/8 - Port state inspection garbage
MARPOL Annex V/8 - Port state inspection garbage. Scope and compliance baseline.
- MARPOL Annex V/9 - Placards garbage management plan
MARPOL Annex V/9 - Placards garbage management plan. Scope and compliance baseline.
- MARPOL Annex VI - CII Rating by Year
Calculate attained CII and the A–E rating band for a given calendar year - the operational carbon-intensity check introduced 2023-01-01.
- MARPOL Annex VI - EEDI Required
Required EEDI for new-build ship per MEPC.281(70) - the baseline the designer must meet vs reference line.
- MARPOL Annex VI - EEXI Required Index
Required EEXI for a given ship type and DWT per MEPC.328(76) - the benchmark that every in-service ship (in-force 2023-01-01) must meet.
- MARPOL Annex VI - NOx Tier II Limit
NOx emission limit for Tier II per MARPOL Annex VI Reg. 13 as a function of rated engine speed - the baseline cap for keel dates ≥ 2011-01-01.
- MARPOL Annex VI - NOx Tier III Limit
NOx emission limit for Tier III (ECA) per MARPOL Annex VI Reg. 13 - keel dates ≥ 2016-01-01 operating in North American / US Caribbean / Baltic / North Sea ECAs.
- MARPOL Annex VI/10 - Port state control NOx
MARPOL Annex VI/10 - Port state control NOx. Scope and compliance baseline.
- MARPOL Annex VI/12 - Ozone-depleting substances
MARPOL Annex VI/12 - Ozone-depleting substances. Scope and compliance baseline.
- MARPOL Annex VI/13 - NOx emissions
MARPOL Annex VI/13 - NOx emissions. Scope and compliance baseline.
- MARPOL Annex VI/14 - Sulphur emissions
MARPOL Annex VI/14 - Sulphur emissions. Scope and compliance baseline.
- MARPOL Annex VI/15 - VOC emissions
MARPOL Annex VI/15 - VOC emissions. Scope and compliance baseline.
- MARPOL Annex VI/16 - Shipboard incineration
MARPOL Annex VI/16 - Shipboard incineration. Scope and compliance baseline.
- MARPOL Annex VI/18 - Fuel oil quality
MARPOL Annex VI/18 - Fuel oil quality. Scope and compliance baseline.
- MARPOL Annex VI/21 - EEDI
MARPOL Annex VI/21 - EEDI. Scope and compliance baseline.
- MARPOL Annex VI/22 - SEEMP
MARPOL Annex VI/22 - SEEMP. Scope and compliance baseline.
- MARPOL Annex VI/22A - Data collection system
MARPOL Annex VI/22A - Data collection system. Scope and compliance baseline.
- MARPOL Annex VI/23 - Transfer of efficiency tech
MARPOL Annex VI/23 - Transfer of efficiency tech. Scope and compliance baseline.
- MARPOL Annex VI/25 - EEXI
MARPOL Annex VI/25 - EEXI. Scope and compliance baseline.
- MARPOL Annex VI/26 - SEEMP revised
MARPOL Annex VI/26 - SEEMP revised. Scope and compliance baseline.
- MARPOL Annex VI/27 - Data collection system
MARPOL Annex VI/27 - Data collection system. Scope and compliance baseline.
- MARPOL Annex VI/28 - CII
MARPOL Annex VI/28 - CII. Scope and compliance baseline.
- MARPOL Annex VI/5 - Survey and certification
MARPOL Annex VI/5 - Survey and certification. Scope and compliance baseline.
- MARPOL Annex VI/6 - IAPP certificate
MARPOL Annex VI/6 - IAPP certificate. Scope and compliance baseline.
- MARPOL Annex VI/7 - Duration of certificate
MARPOL Annex VI/7 - Duration of certificate. Scope and compliance baseline.
- Marseille-Fos (FR) - Port Card
Marseille-Fos, FR - annual throughput ~110,000 TEU, max draft 18 m. South France.
- MARVS Safety Margin (IGC 8.2)
Maximum Allowable Relief Valve Setting check - tank operating pressure must not exceed MARVS.
- Mass Converter
Convert between kilograms, tonnes, long tons (UK), short tons (US), pounds.
- MASS Time-to-Collision
Time-to-collision between own ship and target based on relative-position vector. Used inside autonomous collision-avoidance algorithms.
- MCR - Micro Carbon Residue Assessment
Micro Carbon Residue (MCR) classification for residual fuels per ISO 8217 RMG/RMK - predicts carbonaceous deposit tendency in cylinders and piston crowns.
- MDO DMB - Core Properties
MDO DMB reference fuel card - NCV, density, CO₂ factor for energy-budget and emission calculations.
- Mean & True Mean Draft
Simple mean, mean-of-means, and UNCTAD true mean at LCF.
- Mean Effective Pressure - PME vs BMEP
Relationship between indicated (PMI) and brake (BMEP) mean effective pressure with mechanical efficiency - cross-checks indicator card against brake power test.
- Mean Piston Speed
Cm = 2·s·N/60. Slow-speed engines 7–9 m/s; medium-speed 9–11 m/s; high-speed 12–16 m/s. Ring-reliability ceiling ≈ 10 m/s.
- Mechanical Efficiency (η_m)
Ratio of brake to indicated power. A falling η_m at fixed IMEP is the earliest sign of rising friction (piston rings, bearings, seals).
- Mechanical HP to Kilowatts
Convert hp to kW using the internationally-agreed conversion factor - the bridge between metric and Imperial marine units.
- Megajoules to Kilowatt-hours
Convert MJ to kWh using the internationally-agreed conversion factor - the bridge between metric and Imperial marine units.
- Megapascals to Bar
Convert MPa to bar using the internationally-agreed conversion factor - the bridge between metric and Imperial marine units.
- Megawatt-hour to megajoule
Convert MWh to MJ. Precise factor for marine energy engineering; sourced from NIST / ISO / MEPC reference tables.
- Melbourne (AU) - Port Card
Melbourne, AU - annual throughput ~90,000 TEU, max draft 14 m. Victorian.
- MEPC.117 - Oil Outflow Parameter
Accidental oil-outflow parameter per MEPC.117(52) - probabilistic measure of environmental performance of double-hull tanker design.
- MEPC.184(59) - EGCS wash-water discharge limits
MEPC.184(59) test method - EGCS wash-water discharge limits. Common lab test used for marine water quality assessment.
- MEPC.259(68) - BWMS D-2 performance standard
MEPC.259(68) test method - BWMS D-2 performance standard. Common lab test used for marine water quality assessment.
- MEPC.300(72) - BWMS type approval (G8)
MEPC.300(72) test method - BWMS type approval (G8). Common lab test used for marine water quality assessment.
- Mercator Sailing
Rhumb-line (constant-course) distance and true bearing between two positions using Mercator meridional parts.
- Mercator Sailing - Rhumb Course & Distance
Mercator sailing solution - rhumb-line course and distance between two points using meridional parts, the canonical chart-work method.
- Meridional Parts
Meridional parts at a given latitude - the core quantity behind Mercator sailing and chart construction.
- MES - Deployment Time
Marine Evacuation System (MES) chute / platform deployment time - must deploy 100 % complement within 30 min per LSA Code Ch. VI.
- Metacentric Height (GM)
Solid and fluid transverse metacentric height. IS Code requires fluid GM ≥ 0.15 m.
- Methane Slip → CO₂-equivalent
Convert measured CH₄ slip (g/kWh) to CO₂-equivalent per GWP100 (AR5 = 28; AR6 = 29.8). Used in FuelEU / IMO LCA accounting.
- Methanol - Core Properties
Methanol reference fuel card - NCV, density, CO₂ factor for energy-budget and emission calculations.
- Methanol - Net Calorific Value
Methanol net calorific value and CO₂ factor - the basis for bunker-stem conversion from VLSFO to methanol.
- Metres to Fathoms
Convert m to fath using the internationally-agreed conversion factor - the bridge between metric and Imperial marine units.
- Metres to Feet
Convert m to ft using the internationally-agreed conversion factor - the bridge between metric and Imperial marine units.
- Metres to Inches
Convert m to in using the internationally-agreed conversion factor - the bridge between metric and Imperial marine units.
- Metric HP to Kilowatts
Convert mhp to kW using the internationally-agreed conversion factor - the bridge between metric and Imperial marine units.
- Metric to Long Tons
Convert t to lt using the internationally-agreed conversion factor - the bridge between metric and Imperial marine units.
- Metric to Short Tons
Convert t to st using the internationally-agreed conversion factor - the bridge between metric and Imperial marine units.
- Metric Tonnes to Kilograms
Convert t to kg using the internationally-agreed conversion factor - the bridge between metric and Imperial marine units.
- Mewis Duct - Fuel Savings Estimate
Annual fuel savings from a Becker Mewis Duct - typically 4–8 % for full-form hulls (tankers, bulkers).
- MGO DMA - Core Properties
MGO DMA reference fuel card - NCV, density, CO₂ factor for energy-budget and emission calculations.
- Mho to Siemens
Convert mho to S. Precise factor for marine electrical engineering; sourced from NIST / ISO / MEPC reference tables.
- Miami (US) - Port Card
Miami, US - annual throughput ~70,000 TEU, max draft 13 m. Cruise + cargo.
- Midship Section Modulus - Rule Minimum
Rule-minimum midship section modulus from total bending moment (SWBM + WBM) and the allowable stress per IACS UR S11.
- MII - Motion-Induced Interruption
Motion-Induced Interruption (MII) rate per minute at a work location - NORDFORSK criterion for work-ability in rough weather.
- Millibars to Hectopascals
Convert mbar to hPa using the internationally-agreed conversion factor - the bridge between metric and Imperial marine units.
- Million BTU per hour to kW
Convert MBTU/h to kW. Precise factor for marine energy engineering; sourced from NIST / ISO / MEPC reference tables.
- Million BTU to GJ
Convert MMBtu to GJ. Precise factor for marine energy engineering; sourced from NIST / ISO / MEPC reference tables.
- Milliroentgen to millisievert
Convert mRem to mSv. Precise factor for marine radiation engineering; sourced from NIST / ISO / MEPC reference tables.
- Miner's Rule Cumulative Damage
Cumulative fatigue damage D = Σ n_i / N_i. Failure predicted at D = 1.
- Minimum Propulsion Power
Safety floor under MEPC.1/Circ.850/Rev.3. Level 1 (bulkers/tankers only) gives a simple linear formula:
- Mixed Cylinder Oil BN
BN of a mix of two cylinder oils (e.g., BN 70 + BN 140 topping-up): mass-weighted log-linear approximation.
- MLC - Hours of Work (Alternative)
Alternative MLC work-hours limit - 14 hours in 24 + 72 hours in 7 days (replacing rest-based calc).
- MLC 2006 - Cabin Floor Area
MLC 2006 minimum cabin floor area requirement per seafarer - the baseline standard for new builds after 2013-08-20.
- MLC 2006 - Seafarer Wage Protection
MLC 2006 Title 2 - seafarer wage payment requirements, records, monthly transfer to account.
- mmHg to Pascals
Convert mmHg to Pa using the internationally-agreed conversion factor - the bridge between metric and Imperial marine units.
- Model-Ship Correlation Allowance ΔC_F
Hull-roughness correlation allowance ΔC_F per ITTC 1978 performance prediction - added to flat-plate C_F in ship extrapolation.
- Molar enthalpy — SI to Imperial
Convert kJ/mol to kcal/mol. Precise factor for marine thermo engineering; sourced from NIST / ISO / MEPC reference tables.
- Mombasa (KE) - Port Card
Mombasa, KE - annual throughput ~70,000 TEU, max draft 13 m. East Africa.
- Moment to Change Trim 1 cm
Longitudinal-moment sensitivity of trim for a wall-sided ship.
- Mooring - Dynamic Amplification Factor
Dynamic amplification factor (DAF) for mooring-line peak tension - required to scale static mean wind + current tension to the true peak.
- Mooring Line - Elongation under Load
Mooring-line elongation at a given tension - elongation = tension·length/(EA). Used to verify combined static + dynamic response stays within MBL margin.
- Mooring Line - OCIMF Design Factor
Mooring-line design load limit per OCIMF MEG4 - 55 % of MBL for steel wire, 50 % for synthetics in normal conditions, 60 % in storm.
- Mooring Line - Replacement Interval
Mooring-line replacement interval - based on cycles + visible deterioration + time.
- Mooring Line Catenary Tension
Horizontal tension component of a hanging catenary (wire or chain) from the weight, horizontal span and sag.
- Mooring Line Safety Factor
Safety factor (MBL / working load) for a mooring line; OCIMF MEG4 requires SDMBL ≥ 125 % of expected peak load.
- Mooring Pattern - Line Utilisation
Mooring-line maximum utilisation from standard wind + current, counted over each rope - used for pattern design per OCIMF MEG4.
- Motor Efficiency - vs Load
Induction-motor efficiency curve - peaks ~75 % load; drops sharply below 30 %.
- Motor Starting Current
Starting-current multiplier on full-load amps for DOL, star-delta, autotransformer, and soft-starter modes.
- Motor Synchronous Speed
Ns = 120·f / P - fundamental relationship between line frequency, pole count and a synchronous/induction motor's magnetic-field speed.
- Motor Yacht Fuel & CO₂
Private and commercial motor yachts. Not subject to IMO CII unless engaged in commerce ≥ 5,000 GT. Operators use CO₂ per charter-day for sustainability reporting.
- mph to Knots
Convert mph to kn using the internationally-agreed conversion factor - the bridge between metric and Imperial marine units.
- MTBF & MTTR
Mean Time Between Failures (MTBF) and Mean Time To Repair (MTTR) - two most-cited reliability metrics.
- MTU / Rolls-Royce MTU 16V 4000 M93L - MCR per Cylinder
MTU / Rolls-Royce MTU 16V 4000 M93L engine card: 2720 kW per cylinder at 1800 rpm, SFOC 202 g/kWh.
- MTU / Rolls-Royce MTU 20V 4000 M73L - MCR per Cylinder
MTU / Rolls-Royce MTU 20V 4000 M73L engine card: 3440 kW per cylinder at 1800 rpm, SFOC 202 g/kWh.
- MTU / Rolls-Royce MTU 20V 8000 M71R - MCR per Cylinder
MTU / Rolls-Royce MTU 20V 8000 M71R engine card: 9100 kW per cylinder at 1150 rpm, SFOC 195 g/kWh.
- Multi-port reversible laytime
Aggregate per-port laytime used across multiple calls under reversibility.
- Mumbai/Nhava Sheva (IN) - Port Card
Mumbai/Nhava Sheva, IN - annual throughput ~110,000 TEU, max draft 14 m. India west.
- Mundra (IN) - Port Card
Mundra, IN - annual throughput ~100,000 TEU, max draft 15 m. Gujarat.
- Murray's Method - Hogging SWBM
Still-water bending moment in hogging using Murray's method - the old-school hand-calc for bulk-carrier and tanker midship SWBM.
- Muster Drill - Evacuation Time Estimate
Approximate evacuation time to muster stations per IMO MSC.1/Circ.1533 - a function of POB, flow rate through doors, and walking distance.
- N₂O CO₂-Equivalent
Nitrous-oxide emissions × GWP100 → CO₂-equivalent. Becomes material when burning ammonia (NH₃) fuel.
- N₂O Emissions
- Nairobi - Wreck Removal Insurance
Nairobi Wreck Removal Convention 2007 - compulsory insurance covering costs of locating and removing a sunken wreck.
- Natural Roll Period - Rational Formula
Natural rolling period from GM and ship beam - the Weiss formula used for synchronous rolling check and inclining verification.
- Nautical Miles to Kilometres
Convert nm to km using the internationally-agreed conversion factor - the bridge between metric and Imperial marine units.
- Nautical Miles to Statute Miles
Convert nm to mi using the internationally-agreed conversion factor - the bridge between metric and Imperial marine units.
- Naval Auxiliary Fuel & CO₂
Replenishment oilers, fleet tankers, sealift ships. Exempt from IMO regulation (Article 3.3 of MARPOL) but most navies now track CO₂ per steaming day as an internal metric - NATO Green Defence Framework.
- Net Positive Suction Head Available (NPSHA)
Available suction head at the pump inlet - must exceed NPSH required (from the pump curve) with a ≥ 0.5 m margin to avoid cavitation.
- New KG after Vertical Weight Shift
KG change when an existing weight is moved vertically - e.g., lowering a lifeboat, moving cargo from under-deck to deck.
- New KG after Weight Addition
Moment-method update of KG when a weight is loaded at a known height above keel.
- New KG after Weight Removal
Moment-method update of KG when a weight is discharged - e.g., bunkers consumed, cargo discharged, ballast deballasted.
- New Orleans (US) - Port Card
New Orleans, US - annual throughput ~90,000 TEU, max draft 14 m. Mississippi.
- New York / NJ (US) - Port Card
New York / NJ, US - annual throughput ~150,000 TEU, max draft 15 m. US East hub.
- Newbuild CAPEX - Per DWT
Newbuild capital cost benchmark per DWT or per TEU - order-of-magnitude capital planning.
- NH₃ Slip
Ammonia is acutely toxic (IDLH 300 ppm). N₂O co-product handled separately.
- Nickel Ore - FMP Test Check
Nickel ore flow moisture point test - the IMSBC test required pre-loading to confirm TML vs actual moisture.
- Niigata Niigata 6L28HX - MCR per Cylinder
Niigata Niigata 6L28HX engine card: 1200 kW per cylinder at 720 rpm, SFOC 195 g/kWh.
- Ningbo-Zhoushan (CN) - Port Card
Ningbo-Zhoushan, CN - annual throughput ~280,000 TEU, max draft 21 m. Largest by tonnage.
- Nomoto K - Turning-Rate Gain
Nomoto first-order K index from turning-circle steady-state rate of turn - a compact ship-handling metric used in IMO zig-zag and turning tests.
- Nomoto K and T from Zig-zag
First-order Nomoto response coefficients K (yaw-rate sensitivity) and T (yaw time constant) from zig-zag trial data. K/T characterises how responsive a ship is to rudder.
- Nomoto T - Turning Time Constant
Nomoto first-order time constant T from the yaw-rate rise-to-steady time - measures how quickly the ship responds to rudder.
- Noon Sun - Latitude from Meridian Altitude
Latitude at local apparent noon from observed meridian altitude of the sun and its declination - the classical LAN sight.
- NOR validity check
Confirm whether a Notice of Readiness is valid under the four principal conditions.
- norway nox fund
See live calculator aside for regulator URLs.
- NOx Tier Compliance Check
MARPOL Annex VI Regulation 13 establishes a three-tier engine-certification regime for marine diesel engines, with the maximum permitted NOx emission rate set as a function of the engine's rated rotational speed n in rpm. The applicable tie
- NOₓ Tier I / II / III Limits
Tier I (engines built 2000–2010):
- NTU–Effectiveness Method
Effectiveness ε of a heat exchanger from NTU and capacity-rate ratio Cr, for counter-flow and parallel-flow.
- Oakland (US) - Port Card
Oakland, US - annual throughput ~100,000 TEU, max draft 14 m. Bay.
- OCIMF Current Load - Transverse
Transverse current force on hull per OCIMF MEG4 - the other half of the mooring environmental envelope after wind.
- OCIMF Wind Load - VLCC Approximation
Longitudinal / transverse wind force on a VLCC using OCIMF wind-coefficient tables - the basis for mooring pattern and bollard pull selection.
- ODME - 30 L/nm Compliance Check
Check ODME cargo discharge rate against the MARPOL Annex I Reg. 34 limits: ≤ 30 L oil content per nautical mile, ≤ 1/30 000 of total cargo, en route, > 50 nm from nearest land.
- ODME - NLS vs Oil Setting Check
ODME operational-mode check - correct setting for oil (MARPOL I) vs noxious-liquid-substance (MARPOL II) cargoes.
- Off-Hire Deduction (NYPE)
Hire deduction under NYPE clause 17 - charterer not to pay hire during off-hire period; any over-consumption bunkered during off-hire is deductible.
- Offshore - BOP shear ram activation
BOP shear ram activation operation card: Emergency 9-12 kpsi close-out.
- Offshore - BOP test
BOP test operation card: Blowout preventer weekly function + annual pressure test.
- Offshore - Bunker transfer - offshore
Bunker transfer - offshore operation card: Shuttle + riser hose + metering.
- Offshore - Casing running
Casing running operation card: Joint make-up + float equipment.
- Offshore - Cementing - primary
Cementing - primary operation card: Casing cement from bottom up.
- Offshore - Cementing - squeeze
Cementing - squeeze operation card: Remedial cement through perforations.
- Offshore - Crane operator permit
Crane operator permit operation card: Load chart + wind limit.
- Offshore - Cyclone evacuation
Cyclone evacuation operation card: Tropical cyclone pre-warning threshold.
- Offshore - DP watch level 1 - Green
DP watch level 1 - Green operation card: No failure, full envelope.
- Offshore - DP watch level 2 - Yellow
DP watch level 2 - Yellow operation card: Single fault, reduced envelope.
- Offshore - DP watch level 3 - Red
DP watch level 3 - Red operation card: Loss of position - drive-off/drift.
- Offshore - Drill ahead
Drill ahead operation card: Normal drilling at target ROP.
- Offshore - Fire drill - facility
Fire drill - facility operation card: Monthly alarm test + action.
- Offshore - Flowline hydrate prevention
Flowline hydrate prevention operation card: MEG / methanol injection.
- Offshore - Flowline wax prevention
Flowline wax prevention operation card: Pigging + heating + inhibitor.
- Offshore - Gas lift
Gas lift operation card: Injected gas for flow assurance.
- Offshore - Gas-release drill
Gas-release drill operation card: H2S or HC detection + muster.
- Offshore - Helicopter operations
Helicopter operations operation card: Helideck approach / refuel / shutdown.
- Offshore - Helideck clear-of-obstructions
Helideck clear-of-obstructions operation card: CAP 437 monthly inspection.
- Offshore - Jacket installation
Jacket installation operation card: Barge launch + upend + piles.
- Offshore - Kick detection
Kick detection operation card: Pit level + flow-in vs flow-out.
- Offshore - Life raft - throw-overboard
Life raft - throw-overboard operation card: Self-righting 25-40 pax.
- Offshore - Lifeboat - free-fall
Lifeboat - free-fall operation card: Stern-mounted, 20 m drop.
- Offshore - Lifeboat - totally enclosed
Lifeboat - totally enclosed operation card: 50-70 pax, free-fall or davit-launched.
- Offshore - Man-overboard drill
Man-overboard drill operation card: Throw-rescue line + recovery.
- Offshore - Mud displacement
Mud displacement operation card: Spacer + cement + mud.
- Offshore - Pipelay - J-lay
Pipelay - J-lay operation card: Deep water, vertical tower.
- Offshore - Pipelay - reel-lay
Pipelay - reel-lay operation card: Reel ship, pre-spooled pipe.
- Offshore - Pipelay - S-lay
Pipelay - S-lay operation card: Shallow to moderate water.
- Offshore - Platform abandonment
Platform abandonment operation card: Plug + abandon well + topside removal.
- Offshore - PTW - confined space
PTW - confined space operation card: Rescue crew + monitoring.
- Offshore - PTW - diving
PTW - diving operation card: Saturation or air, surface-supplied.
- Offshore - PTW - hot work
PTW - hot work operation card: Permit-to-work, gas-free + stand-by.
- Offshore - PTW - working at height
PTW - working at height operation card: Fall-arrest + tethered tools.
- Offshore - Riser disconnect - EDS
Riser disconnect - EDS operation card: Emergency Disconnect Sequence in < 2 min.
- Offshore - Riser recoil
Riser recoil operation card: Tensioner oscillation after disconnect.
- Offshore - Riser running
Riser running operation card: RPE / Tensioner + joint make-up.
- Offshore - ROV inspection
ROV inspection operation card: Remotely Operated Vehicle survey.
- Offshore - ROV valve operation
ROV valve operation operation card: Subsea intervention.
- Offshore - Subsea tree installation
Subsea tree installation operation card: Running tool + guideline jaws.
- Offshore - Subsea trenching
Subsea trenching operation card: Jetting / cutter ROV.
- Offshore - Topside installation - float-over
Topside installation - float-over operation card: Barge positioned + ballast.
- Offshore - Topside installation - lift
Topside installation - lift operation card: Heavy-lift crane or SSCV.
- Offshore - Tripping in / out
Tripping in / out operation card: Pipe movement in open hole.
- Offshore - Water injection
Water injection operation card: Seawater for pressure maintenance.
- Offshore - Well control - hard shut-in
Well control - hard shut-in operation card: Complete closure after kick.
- Offshore - Well control - soft shut-in
Well control - soft shut-in operation card: Pressure monitoring before full closure.
- Offshore - Well logging - LWD
Well logging - LWD operation card: Logging While Drilling - real-time.
- Offshore - Well logging - wireline
Well logging - wireline operation card: Electric cable conveyed tools.
- Offshore Jacket - Fundamental Period
Fundamental (sway) period of an offshore steel jacket from overall height and mass - determines wave-load dynamic amplification.
- Offshore Rig - Day Rate
Offshore drilling / production rig day-rate benchmark - drillship vs semisubmersible vs jack-up.
- Offshore Topside - Centre of Gravity Check
Topside VCG check against barge/jacket stability for float-over or lift installation - the critical transport constraint.
- Oil Mist Detector Trip (IACS UR M10)
Crankcase oil-mist concentration trip at 2.5 mg/L per IACS UR M10 on engines ≥ 2250 kW or cylinder bore ≥ 300 mm.
- Oil Wear-Metal Alert Levels
Flag ICP wear-metal concentrations against typical trending limits - a step change of >2× baseline is the classic CBM alert.
- Open-Deck Torsion - Containership
Warping + St. Venant torsional stiffness for an open-deck containership - determines warping restraint at stool / bulkhead.
- Open-Top Container - Over-Height Lashing
Additional lashing for over-height cargo in an open-top container - rule-of-thumb number of lashing ropes.
- Open-Water Efficiency η_O
η_O = (J · KT) / (2π · KQ). Peak open-water efficiency of a typical merchant propeller 0.60–0.72.
- Open-Water KT - Wageningen B-Series
Dimensionless thrust coefficient KT at a given advance coefficient J for a B4-40 Wageningen B-series propeller at P/D = 1.0 - simple regression lookup for preliminary design.
- Ore Carrier / VLOC CII
MEPC.337 combination-carrier reference line.
- OSV (Offshore Supply Vessel) Fuel & CO₂
OSVs sit outside the IMO CII regime (no transport-work denominator). Operators benchmark on daily or bollard-pull-hour intensity.
- OWS - 15 ppm Alarm Threshold Check
Check whether the oil content of overboard discharge from the 15 ppm Oily Water Separator is compliant with MARPOL Annex I Reg. 14 - assumes bilge holding tank, OWS flow rate, and alarm settings.
- Ozone-Depleting Substances - Phase-Out Check
Compliance check for ODS (CFC, HCFC, halon) on board per MARPOL Annex VI Reg. 12 - phased out installation after 2020.
- P&I - IG Mutual Premium Quote
Approximate IG Club P&I premium based on GT, tonnage rate, and claims record - the mutual-cover quote structure.
- P&I Club - American Club
American Club - International Group of P&I Clubs member. Pools claims 40 M USD+ with other IG clubs.
- P&I Club - Britannia
Britannia - International Group of P&I Clubs member. Pools claims 40 M USD+ with other IG clubs.
- P&I Club - Gard
Gard - International Group of P&I Clubs member. Pools claims 40 M USD+ with other IG clubs.
- P&I Club - Japan P&I Club
Japan P&I Club - International Group of P&I Clubs member. Pools claims 40 M USD+ with other IG clubs.
- P&I Club - London Steamship
London Steamship - International Group of P&I Clubs member. Pools claims 40 M USD+ with other IG clubs.
- P&I Club - North Standard
North Standard - International Group of P&I Clubs member. Pools claims 40 M USD+ with other IG clubs.
- P&I Club - Shipowners Mutual
Shipowners Mutual - International Group of P&I Clubs member. Pools claims 40 M USD+ with other IG clubs.
- P&I Club - Skuld
Skuld - International Group of P&I Clubs member. Pools claims 40 M USD+ with other IG clubs.
- P&I Club - Steamship Mutual
Steamship Mutual - International Group of P&I Clubs member. Pools claims 40 M USD+ with other IG clubs.
- P&I Club - Swedish Club
Swedish Club - International Group of P&I Clubs member. Pools claims 40 M USD+ with other IG clubs.
- P&I Club - UK Club
UK Club - International Group of P&I Clubs member. Pools claims 40 M USD+ with other IG clubs.
- P&I Club - West of England
West of England - International Group of P&I Clubs member. Pools claims 40 M USD+ with other IG clubs.
- P1A_82 - Atlantic RV
P1A_82 benchmark route for Panamax: Atlantic RV. Rate × distance → TCE.
- P2A_82 - Skaw-Gibraltar → Far East
P2A_82 benchmark route for Panamax: Skaw-Gibraltar → Far East. Rate × distance → TCE.
- P3A_82 - Pacific RV
P3A_82 benchmark route for Panamax: Pacific RV. Rate × distance → TCE.
- P4_82 - Far East → Continent
P4_82 benchmark route for Panamax: Far East → Continent. Rate × distance → TCE.
- Panama (Balboa) (PA) - Port Card
Panama (Balboa), PA - annual throughput ~120,000 TEU, max draft 18 m. Panama Pacific.
- Panama (Colon-MIT) (PA) - Port Card
Panama (Colon-MIT), PA - annual throughput ~130,000 TEU, max draft 18 m. Panama Caribbean.
- Panama Canal - PC/UMS Toll
Panama Canal toll using PC/UMS net tonnage and the ACP tariff schedule by segment (locks, TEU capacity for containerships, or DWT for dry-bulk / tankers).
- Parallel Indexing - Clearance Line
Parallel indexing distance for radar clearance.
- Parallel Sailing - D.Long from Departure
Parallel-sailing conversion: difference of longitude (D.Long) from departure and latitude - applies when course is east-west.
- Parametric Roll Susceptibility
Screening criterion - parametric roll likely if wave length λ ≈ L_pp AND encounter period 2·T_φ (twice natural roll period).
- Paris Law Crack Growth
Fatigue crack growth rate da/dN = C·(ΔK)^m. Integrates the life from initial to critical crack size.
- Paris MOU - Detention Probability
Paris MOU detention probability given flag performance list + ship-risk-profile (SRP) scoring.
- Passage Plan - 4-Stage Coverage
IMO 4-stage passage plan: appraise, plan, execute, monitor.
- Passenger Crowding - Heeling Moment
Heeling moment from passenger crowding to one side per IS Code §3.1.2 - 75 kg per person at 80 % of the effective beam.
- Passenger Ferry CII
Short-sea passenger ferries share the Ro-Pax reference line under IMO CII.
- Passenger Muster - Briefing Time
Passenger muster drill timing per SOLAS III Reg. 19.2.3 - before departure or within 24 h after embarkation on voyage > 24 h.
- Passenger Ship - Lifejacket Count
Passenger-ship lifejacket count per SOLAS III Reg. 7.2 - 100 % POB + 5 % at muster stations + 10 % infant + watchkeeper personal.
- PBCF - Propeller Boss Cap Fin Savings
Estimated fuel saving from a Propeller Boss Cap Fin (PBCF) - 3–5 % through hub-vortex elimination, scales with propeller load.
- Per-Unit Synchronous Reactance (Xd)
Convert the generator's ohmic synchronous reactance into a per-unit value using MVA, kV base.
- Petroff's Law Friction
Viscous friction torque on a concentric journal bearing: T = 4π²·η·N·R³·L / c (R, c in consistent units).
- Petroleum flow — barrels per day to m³/h
Convert bbl/day to m³/h. Precise factor for marine cargo engineering; sourced from NIST / ISO / MEPC reference tables.
- PID - Ziegler-Nichols Ultimate Tuning
Classical Ziegler-Nichols PID gains from ultimate gain K_u and ultimate period T_u - an on-line tuning recipe for level, pressure and flow loops.
- Pierson-Moskowitz - Peak Frequency
Peak frequency ω_p of the Pierson-Moskowitz fully-developed spectrum - used as input for strip-theory motion analysis.
- Pierson-Moskowitz - Peak Period vs Wind
Peak spectral period T_p of the Pierson-Moskowitz fully-developed sea given 19.5 m wind speed - the fundamental fully-developed-sea relationship.
- Pierson-Moskowitz Spectrum Value
One-point PM spectrum S(ω) = α·g²/ω⁵ · exp(−β·(ω_p/ω)⁴). Used for fully-developed seas.
- Pilot Boarding - Wake Risk
Wake-wash risk during pilot boarding - ship speed-height-above-water threshold before ladder unsafe.
- Pilot Boat Wake - Height & Angle
Wake-height estimate of a pilot boat at boarding speed - used to select safe boarding sea state.
- Pilot Ladder - Angle & Deployment Height
Pilot-ladder deployment angle and height-above-water check per SOLAS V Reg. 23 - safe access for embarking pilots.
- Pilot Ladder Rigging Height
Check pilot-ladder rigging height against SOLAS V Reg 23 - ladder length when freeboard exceeds 9 m requires combination with accommodation ladder.
- Pilot Transfer - Risk
Pilot Transfer - Risk - concept summary and example calculation.
- Pipe Friction - Coarse Estimate
Quick estimate of friction head loss per 100 m of straight pipe for a given flow and diameter - coarse engineering first-pass before Darcy-Weisbach refinement.
- Pipe Friction - Darcy-Weisbach
Pipe head-loss from Darcy-Weisbach equation - the fundamental pipe-friction calculation for any fluid system.
- Pipe Reynolds Number
Re = ρ·V·D/μ for an internal pipe flow. Determines whether the flow is laminar (< 2300), transitional, or turbulent (> 4000).
- Pipe Wall Thickness (ASME B31.1)
Minimum pipe wall thickness from ASME B31.1: t = P·D / (2·(SE + PY)) + c, with corrosion allowance c.
- Piracy - BMP5 Transit Speed
BMP5 recommended transit speed in a High-Risk Area (HRA) - 18 kn minimum, higher freeboard preferred.
- Piracy - Gulf of Guinea Precautions
Gulf of Guinea transit precautions per BMP West Africa 2020 - kidnap-for-ransom risk, different from Indian Ocean pattern.
- Piraeus (GR) - Port Card
Piraeus, GR - annual throughput ~120,000 TEU, max draft 18 m. East Med.
- Piston Ring Gap - Installation Check
Piston-ring end gap at installation and worn - typical 0.1–0.2 % of bore new, scrap at 0.5 %.
- Pitch RAO - Linear Approximation
Linear pitch RAO at a given frequency using SDOF damped oscillator approximation - preliminary pitch-motion estimate for seakeeping analysis.
- Pivot Point Location
Approximate pivot point location forward of amidships as a function of propeller thrust direction. Ahead motion: pivot ~ 1/4 L forward of amidships; astern: ~ 1/4 L aft.
- Pivot Point Location - Ship Handling
Pivot point location along the ship when making headway / stern way - the instantaneous point of zero transverse velocity that governs tug-handling.
- Plane Sailing - D.Lat & Departure
Plane-sailing solution: difference of latitude (D.Lat) and departure from course and distance, valid for short distances (≤ 300 nm).
- Plate Buckling - Elastic Critical Stress
Elastic critical buckling stress of a plate panel under uniaxial compression per class formula - screens for instability of shell/deck panels.
- Plate Joint - Fatigue Life (Miner)
Fatigue life of a welded detail using Miner's rule over a single stress range and SN curve - classical hull-detail fatigue calculation.
- Plate Thickness - Lateral Load
Required plate thickness under lateral pressure per classical rule formula - t = C·s·√(p/σ_allow) where s is the span (shorter side).
- PM - Particulate Matter
~90–95 % of marine PM is PM2.5.
- PMS Completion Rate
Planned Maintenance System completion rate - the ratio of jobs completed on time vs jobs scheduled over the period. Class minimum typically 85 %.
- Pointe-Noire (CG) - Port Card
Pointe-Noire, CG - annual throughput ~40,000 TEU, max draft 15 m. Congo.
- Polar - Thermal Protective Aid
Polar Code thermal-protective aid (TPA) requirement - mandatory for lifeboat occupants + each person on survival craft.
- Polar Class - Ice Pressure Distribution
Design ice pressure on hull plating per IACS Polar Class UR I - bow / mid-body / stern regional pressure factors.
- Polar Class - Selection Guide
Polar Class recommendation from route, season, and ice-concentration profile - PC1 to PC7 selector for project feasibility.
- Polar Class Ice-Belt Plate Thickness
Approximate ice-belt plate thickness per IACS UR I2 - scaled from ice design pressure.
- Polar Code - Minimum Manning & Advanced Training
Minimum bridge-watchkeeper certification per IMO Polar Code / STCW Ch. V/4 given the ship category (A/B/C) and operating ice concentration.
- Polar Code - Safe Speed in Ice
Recommended safe speed in ice per POLARIS / IMO MSC.1/Circ.1519 - speed reduced from open-water speed as RIO score approaches zero.
- Polar Code Survival Kit Duration
Required survival-kit duration per SOLAS XIV / Polar Code: 5 days (Polar Class A/B, max expected rescue time + 50 %).
- Polar Comms - Iridium Backup
Polar Code Chapter 10 communications - Iridium (GMDSS A4) mandatory for Polar Code voyages beyond INMARSAT coverage.
- Polar Op - Ice class - heavy ice
Ice class - heavy ice operation card: PC4 / IA / IA Super.
- Polar Op - Ice class - light ice
Ice class - light ice operation card: PC6 / Finnish-Swedish IC.
- Polar Op - Ice class - medium ice
Ice class - medium ice operation card: PC5 / IB / IC Super.
- Polar Op - Ice class - open water
Ice class - open water operation card: No ice strengthening (PC7+).
- Polar Op - Ice class - polar
Ice class - polar operation card: PC1-3 year-round Arctic / Antarctic.
- Polar Op - Ice reconnaissance - AARI
Ice reconnaissance - AARI operation card: Arctic and Antarctic Research Institute chart.
- Polar Op - Ice reconnaissance - Canadian Ice Service
Ice reconnaissance - Canadian Ice Service operation card: CIS egg-code ice chart.
- Polar Op - Ice reconnaissance - helicopter
Ice reconnaissance - helicopter operation card: On-board helo for close-in scouting.
- Polar Op - Ice reconnaissance - satellite
Ice reconnaissance - satellite operation card: SAR + optical multi-temporal.
- Polar Op - Ice-independent operation
Ice-independent operation operation card: Self-capable PC4+ without escort.
- Polar Op - Ice-safe speed
Ice-safe speed operation card: Per POLARIS RIO.
- Polar Op - Icebreaker escort
Icebreaker escort operation card: Convoy through close-pack ice.
- Polar Op - Polar ballast water
Polar ballast water operation card: Swap offshore or segregated tanks only.
- Polar Op - Polar beset / jamming
Polar beset / jamming operation card: Ship stopped in ice - wait for shift.
- Polar Op - Polar close-pack ice transit
Polar close-pack ice transit operation card: 7+ tenths, heavy icebreaker.
- Polar Op - Polar cold-weather suit
Polar cold-weather suit operation card: -30 °C rated with thermal lining.
- Polar Op - Polar communications - HF DSC
Polar communications - HF DSC operation card: Back-up for VHF / satellite.
- Polar Op - Polar communications - INMARSAT A3
Polar communications - INMARSAT A3 operation card: < 70° lat.
- Polar Op - Polar communications - Iridium A4
Polar communications - Iridium A4 operation card: Polar regions > 70°.
- Polar Op - Polar drift ice transit
Polar drift ice transit operation card: Under 3 tenths ice, low-power.
- Polar Op - Polar engineering - BWMS anti-freeze
Polar engineering - BWMS anti-freeze operation card: Heated storage for biocides.
- Polar Op - Polar engineering - deck drainage
Polar engineering - deck drainage operation card: Prevents surface ice accumulation.
- Polar Op - Polar engineering - winterisation
Polar engineering - winterisation operation card: Anti-icing + heat tracing + drainage.
- Polar Op - Polar escort + convoy
Polar escort + convoy operation card: Icebreaker-led convoy - follow-the-leader.
- Polar Op - Polar fast ice
Polar fast ice operation card: Attached to shore, fractured by tide.
- Polar Op - Polar first-year ice (FY)
Polar first-year ice (FY) operation card: Current-season ice - lower strength.
- Polar Op - Polar garbage
Polar garbage operation card: Shore reception only in Antarctic.
- Polar Op - Polar glacial ice
Polar glacial ice operation card: Hardened ice - slow speed mandatory.
- Polar Op - Polar icebreaking transit
Polar icebreaking transit operation card: Ahead + astern ramming.
- Polar Op - Polar lead sailing
Polar lead sailing operation card: Ice channel navigation.
- Polar Op - Polar multi-year ice (MY)
Polar multi-year ice (MY) operation card: Old ice - thick + strong.
- Polar Op - Polar navigation - celestial
Polar navigation - celestial operation card: Back-up for GNSS loss.
- Polar Op - Polar navigation - compass
Polar navigation - compass operation card: Gyro unreliable > 80° lat.
- Polar Op - Polar navigation - GNSS
Polar navigation - GNSS operation card: Multi-constellation, augmented.
- Polar Op - Polar navigation - radar
Polar navigation - radar operation card: Primary in poor visibility.
- Polar Op - Polar new ice (NI)
Polar new ice (NI) operation card: Nilas + grey ice - easily penetrated.
- Polar Op - Polar oil spill response
Polar oil spill response operation card: Booms useless < 0 °C - burn or disperse.
- Polar Op - Polar pack ice
Polar pack ice operation card: Drifting ice - vessel must keep steerage.
- Polar Op - Polar survival equipment
Polar survival equipment operation card: Immersion suits, TPAs, extra rations.
- Polar Op - Polar wastewater
Polar wastewater operation card: Hold tank voyage, shore discharge.
- Polar Survival Craft - Required Duration
Minimum survival craft duration in polar waters per IMO Polar Code Part I-A Ch. 8 - 5 days plus time to anticipated rescue, with personal and group survival equipment stocked accordingly.
- Polar Voyage - Fuel Margin
Polar voyage bunker planning - Polar Code Part I-A Ch. 3 requires sufficient fuel for maximum anticipated time to rescue + 50 % margin.
- POLARIS - Risk Index Outcome (RIO)
POLARIS Risk Index Outcome (RIO) for up to five ice-concentration bands per MSC.1/Circ.1519 - rapid operational check.
- Polaris Correction - Latitude Sight
Simplified Polaris sight reduction for northern-hemisphere latitude.
- POLARIS Risk Index Outcome (RIO)
Risk Index Outcome = sum over ice-type fractions × (ice-type-specific Risk Index Value). Per IMO MSC.1/Circ.1519.
- Polarisation Index (IR / PI)
Polarisation Index = R₁₀min / R₁min from a megger test. IEEE 43 minimum acceptable PI ≥ 2.0 for most machines.
- Port Disbursement Account - Estimate
Estimate the total Port Disbursement Account (DA) by summing the standard line items - port dues, pilotage, tugs, mooring, agency fee, launch, customs and sundries.
- Port Entry - BRM Checklist
Port Entry - BRM Checklist - concept summary and example calculation.
- Port Fee Rebate
ESI-linked port-fee rebate at participating ports.
- Port Hedland (AU) - Port Card
Port Hedland, AU - annual throughput ~60,000 TEU, max draft 19 m. Iron ore largest.
- Port Klang (MY) - Port Card
Port Klang, MY - annual throughput ~120,000 TEU, max draft 15 m. Malaysia west.
- Port Said (East) (EG) - Port Card
Port Said (East), EG - annual throughput ~180,000 TEU, max draft 19 m. Suez Mediterranean.
- Port Stay Fuel & CO₂
Fuel and CO₂ for a port call - aux hotel load, boiler duty, cargo-pump load.
- Port Turnaround - Productivity Check
Port turnaround time (arrival-to-departure) benchmark - function of cargo type and terminal productivity.
- Portable Extinguisher Count (FSS Code Ch.4)
Minimum portable extinguishers per accommodation, control-station and cargo area per FSS Code Ch.4 / SOLAS II-2 Reg 10.3.
- Poseidon Principles - Portfolio Climate Alignment
Poseidon Principles portfolio-alignment score for maritime loan portfolio - measures borrower fleet trajectory vs IMO path.
- Poseidon Principles Climate Alignment
Percentage deviation of a ship's AER from the Poseidon Principles decarbonisation trajectory.
- Potable Water - MLC Minimum
MLC 2006 minimum potable water per seafarer per day - baseline 70 L; comfortable 150–200 L.
- Pound-force to Kilonewtons
Convert lbf to kN using the internationally-agreed conversion factor - the bridge between metric and Imperial marine units.
- Pounds to Kilograms
Convert lb to kg using the internationally-agreed conversion factor - the bridge between metric and Imperial marine units.
- Power Converter
Convert between kilowatts, metric horsepower (PS), imperial horsepower (hp), tons of refrigeration (TR).
- Power Triangle - kVA / kW / kVAR
Relate apparent (kVA), real (kW) and reactive (kVAR) power via the cos φ power factor.
- Power-Factor Correction - Capacitor kVAR
Capacitor kVAR required to raise a load's power factor from pf₁ to a target pf₂.
- ppmv to mg/Nm³ conversion for SO₂
Convert ppmv to mg/Nm³ (SO₂). Precise factor for marine emissions engineering; sourced from NIST / ISO / MEPC reference tables.
- ppmv to mg/Nm³ for NOx (as NO₂)
Convert ppmv to mg/Nm³ (NOx as NO₂). Precise factor for marine emissions engineering; sourced from NIST / ISO / MEPC reference tables.
- Pre-Swirl Stator - Energy Saving
Fuel-saving estimate from a pre-swirl stator (asymmetric guide vanes ahead of propeller) - 3–6 % typical on full-form hulls.
- Pressure Converter
Convert between bar, kPa, MPa, psi, mmHg, inHg, kgf/cm², atm.
- Pressure-time integral — bar·s to Pa·s
Convert bar·s to Pa·s. Precise factor for marine thermo engineering; sourced from NIST / ISO / MEPC reference tables.
- Prewash Requirement Check (Annex II Reg 13)
Decision support for whether a prewash is required after discharging a Category X/Y cargo.
- Prismatic Coefficient (Cp)
Longitudinal fullness - Cp = Cb / Cm. A finer stern/bow has lower Cp; a parallel mid-body ship has higher Cp.
- Product / Chemical Tanker CII
Shares the MEPC.337 tanker reference line with crude tankers - CII regime treats all tankers as one type.
- Production Riser - Top Tension
Top-tension requirement for a production riser given wet weight, internal content weight and safety margin - OSV / FPSO design input.
- Propeller - Advance Coefficient J
Propeller advance coefficient J = V_A / (n·D) - the dimensionless speed on open-water characteristics.
- Propeller - Optimal Pitch-Diameter
Optimal pitch-diameter ratio maximising open-water efficiency for a given advance coefficient - the basic diameter / pitch trade-off.
- Propeller Advance Ratio J
Dimensionless speed ratio J = V_A / (n·D) - the horizontal axis of every propeller open-water chart.
- Propeller Cavitation Number - Inception
Cavitation number σ_n at a given depth and rpm compared to the empirical inception threshold - the first check before Burrill / Keller chart assessment.
- Propeller Thrust Coefficient KT
Non-dimensional thrust KT = T / (ρ·n²·D⁴). The vertical-axis quantity read from open-water propeller charts.
- Propeller Torque Coefficient KQ
Non-dimensional torque KQ = Q / (ρ·n²·D⁵). Open-water charts typically tabulate 10·KQ to keep KQ and KT on the same chart scale.
- Protection - Selectivity Check
Protection selectivity check - downstream breaker must trip before upstream for faults on its branch.
- PSC - Targeting Factor
Paris MOU targeting factor combining flag, RO, age, ship-type and company performance - drives inspection priority.
- psi to Bar
Convert psi to bar using the internationally-agreed conversion factor - the bridge between metric and Imperial marine units.
- PSPC NDFT 90/10 Check
Performance Standard for Protective Coatings - 90 % of DFT readings ≥ nominal, and no reading < 0.9 × nominal.
- PSV - Deck Area & DWT
PSV deck area and deadweight planning - cargo mud, cement, base oil, drill water based on deck area.
- Psychrometrics - RH from Dew Point
Relative humidity from dry-bulb and dew-point temperatures using the Tetens saturation-pressure formula.
- Pull-Down Time (Cold Room)
Time to cool a loaded cold room from ambient to set-point, given refrigeration plant duty and thermal load.
- Pump - Affinity Law
Centrifugal-pump performance scaling when impeller speed or diameter changes - Q ∝ n, H ∝ n², P ∝ n³.
- Pump - NPSH Available (NPSHa)
Net Positive Suction Head Available (NPSHa) at pump inlet - must exceed NPSHr to avoid cavitation. Classical hydraulics check for cargo / ballast pumps.
- Pump - NPSH Required (NPSHr)
Pump NPSH required estimation from impeller geometry and operating point - the value that NPSHa must exceed for reliable operation.
- Pump Affinity Law - Flow & Head
Flow ∝ N; Head ∝ N²; Power ∝ N³ for a given pump with speed change (or geometrically similar impeller-diameter change).
- Pump Hydraulic Power
P_hyd = ρ·g·Q·H - useful power transferred to the fluid. Brake power = P_hyd / η_pump.
- Pump Priming Time
Time for a self-priming centrifugal pump to evacuate the suction line to a specified vacuum.
- Pumps in Parallel or Series
Two identical pumps added in parallel double flow at fixed head; added in series double head at fixed flow (against a flat enough system curve).
- Purifier - Separation Temperature
Recommended feed-oil separation temperature vs density - 98 °C for HFO ≥ 991 kg/m³ @ 15 °C.
- Purifier Stokes Settling Velocity
Settling velocity of a dispersed-water droplet in oil: v = d²·(ρ_w − ρ_o)·g / (18·μ). The basis of centrifugal purifier sizing.
- Purse Seiner Fuel & CO₂
Pelagic purse-seine fishing vessels. Outside CII scope; per-kg-catch intensity - much lower than trawlers (~0.3–1.0 kg CO₂/kg pelagic catch).
- Quasi-Propulsive Coefficient η_D
Quasi-propulsive coefficient η_D = η_H × η_O × η_R - the ratio between effective power (EHP) and delivered power (DHP).
- Quasi-Propulsive Coefficient η_D
η_D = η_O · η_H · η_R - the efficiency of energy transmission from delivered power to effective (towing) power.
- Radar & Optical Horizon
Horizon distance - how far a radar or an observer can see - as a function of antenna/eye height.
- Radar Refraction - Coefficient
Radar refraction coefficient k for horizon calculation.
- Radians to Degrees
Convert rad to deg using the internationally-agreed conversion factor - the bridge between metric and Imperial marine units.
- Radio/EPIRB Battery - 6 h Autonomy
Check reserve-source battery capacity for VHF / MF-HF radio and EPIRB per SOLAS IV Reg. 13 - minimum 6 h (or 1 h if ship has emergency generator running > 36 h).
- Rankine Cycle Efficiency
Ideal Rankine cycle thermal efficiency from the four cycle enthalpies - the steam-plant / WHR / ORC benchmark.
- Rankine to Kelvin
Convert °R to K. Precise factor for marine general engineering; sourced from NIST / ISO / MEPC reference tables.
- Ras Al Khair (SA) - Port Card
Ras Al Khair, SA - annual throughput ~40,000 TEU, max draft 15 m. KSA bauxite/alumina.
- Re-order Point
Re-order point = (average demand × lead time) + safety stock. When current stock drops to this level, trigger a purchase order.
- Reefer - Temperature Range Tolerance
Acceptable deviation of reefer internal temperature vs setpoint during transit - OCIMF/Perishable agreement.
- Reefer Container - Freight Premium
Reefer-container freight premium over dry - typically 1.5-3× dry freight rate.
- Reefer Container - Power per Unit
Electrical power draw per active reefer container - basis for ship reefer-plant sizing and port-shore-power budget.
- Reefer Container Ship CII
Container ships with significant reefer-plug capacity. Same reference line as conventional container ships; the CII difference sits entirely in the aux-engine fuel term driven by reefer load.
- Reefer Ship CII
Conventional refrigerated-cargo ships - MEPC.337 refrigerated-cargo reference line.
- Refrigerant Charge (Tube Volume Method)
Estimate refrigerant charge from system pipe + component internal volume and refrigerant density at operating states.
- Refrigeration Condenser - Heat Rejection
Condenser heat rejection rate given evaporator duty and compressor power - Q_cond = Q_evap + W_comp.
- Refrigeration COP - Carnot & Actual
Coefficient of Performance of a vapour-compression cycle given evaporator and condenser temperatures, with Carnot reference.
- Refrigeration Pull-Down Time
Estimated pull-down time of a refrigerated hold given initial/target temperatures, cargo mass and cooling capacity.
- Refrigeration Tonnage (TR ↔ kW)
1 ton of refrigeration = 3.5169 kW. Handy converter when spec sheets mix US and SI.
- Reliability - Downtime from MTBF/MTTR
System availability A = MTBF / (MTBF + MTTR) and annual downtime hours - the baseline uptime metric for critical marine equipment.
- Required Section Modulus
Minimum hull-girder section modulus from total bending moment and steel grade allowable stress.
- Required Subdivision Index R (Cargo)
Required Subdivision Index for cargo ships per SOLAS II-1 Reg 6: R = 1 − 128 / (Ls + 152).
- Research Vessel Fuel & CO₂
Oceanographic research vessels. Outside CII scope; per-science-day intensity is the benchmark used by the International Research Ship Operators (IRSO).
- Reserve Buoyancy - Freeboard-based
Reserve buoyancy as a percentage of displacement - the volume above the load-water plane that provides resistance to flooding.
- Residual GM Check
Quick check of residual metacentric height after damage - SOLAS II-1 Reg 8 requires GM ≥ 0.05 m final.
- Resistivity units equivalent
Convert ohm·mm²/m to µΩ·m. Precise factor for marine electrical engineering; sourced from NIST / ISO / MEPC reference tables.
- Retrofit Payback
Simple payback and NPV for an energy-saving ship retrofit.
- Reverse-Carnot COP (Theoretical Limit)
Maximum possible cooling COP for a given evaporator and condenser temperature pair. Real cycles achieve 35–65 % of this.
- Reverse-Power Setting (ANSI 32)
ANSI 32 reverse-power relay setpoint - typically 5–15 % of rated kW for diesel generators, 2–6 % for turbine.
- Reversible laytime calculator
Combined load + discharge laytime under reversibility.
- Reynolds Number
Dimensionless ratio of inertial to viscous forces; the x-axis of every friction-coefficient correlation.
- Reynolds Number - Pipe Flow
Reynolds number for pipe flow - the dimensionless parameter separating laminar (Re < 2300), transitional (2300–4000), turbulent (> 4000).
- rfnuo eligiuility
Fuel factors from shared/fuel-factors.json (IMO MEPC.364(79) Cf + FuelEU Maritime Annex II WtW intensities).
- RightShip GHG Rating
A–G letter grade derived from a ship's EEDI Z-score within its ship-type + size peer group.
- Rigid Wing Sail - Thrust Estimate
Along-ship thrust of a rigid wing sail given sail area, lift coefficient, relative wind and angle - Oceanbird/WindWings design principle.
- RINA - CYBER RESILIENCE (Cyber)
RINA class notation CYBER RESILIENCE - Cyber. Eligibility + survey-scope check.
- RINA - DOLPHIN-NAV (Nautical)
RINA class notation DOLPHIN-NAV - Nautical. Eligibility + survey-scope check.
- RINA - Green Plus (Environmental)
RINA class notation Green Plus - Environmental. Eligibility + survey-scope check.
- RINA - SUSTAINABLE SHIP (Sustainability)
RINA class notation SUSTAINABLE SHIP - Sustainability. Eligibility + survey-scope check.
- RINA DOLPHIN QUIET-SHIP Notation
RINA's underwater-radiated-noise (URN) notation - aligned with IMO MEPC.1/Circ.906 and ABS UWN.
- RINA GREEN PLUS
Italian class society RINA's weighted-score environmental notation.
- Riser Vortex Shedding - Strouhal
Vortex-shedding frequency on a cylindrical riser from Strouhal number - basis for VIV fatigue assessment.
- RO Membrane Recovery Rate
RO recovery = permeate / feed. Low recovery = less scaling but more energy per m³; high recovery saves water but risks membrane fouling.
- Ro-Pax Ferry CII
MEPC.337 roro-passenger reference line.
- Ro-Ro Lashing - Trailer Holddown
Number of lashing points required for a ro-ro trailer from mass, acceleration and per-lashing WLL - CSS Code Annex 4.
- Ro-Ro Ramp - Angle Check
Ro-ro ramp angle vs vehicle clearance - limits for saloon car, truck and semi-trailer access.
- Ro-Ro Vehicle Carrier (PCTC) CII
MEPC.337 roro-cargo-vehicle reference line, GT-based.
- Rotterdam (NL) - Port Card
Rotterdam, NL - annual throughput ~250,000 TEU, max draft 23 m. ARA hub; LNG/ammonia bunker pioneer.
- Rotterdam Rules - Applicability Check
Check Rotterdam Rules applicability (not yet in force; partial adoption) vs Hague-Visby default - useful for long-term BOL drafting.
- Round Voyage P/L
Net voyage profit = freight − voyage costs − OPEX × days.
- RS - Arc6 (Russian Arctic)
RS class notation Arc6 - Russian Arctic. Eligibility + survey-scope check.
- RS - Icebreaker6 (Icebreaker)
RS class notation Icebreaker6 - Icebreaker. Eligibility + survey-scope check.
- Rudder - Bearing Clearance Check
Rudder-stock bearing clearance at drydock survey - scrapping limit typically 5-6 mm.
- Rudder Area - Archer Rule
Rudder-area rule-of-thumb using Archer's formula - a function of underwater lateral area, used in early design feasibility.
- Rudder Normal Force - Class Formula
Rudder normal-force per typical classification-society rule - F_N = 132·A·v²·κ for full-spade rudders.
- Rudder Rate Check (SOLAS II-1 Reg 29)
Rate check: full rudder 35°→30° other side in ≤ 28 s, meaning ≥ 2.32 °/s average. SOLAS fundamental steering-gear duty.
- Rule of Sixty - Track Error
Simple track-error correction: 1° off at 60 nm = 1 nm cross-track.
- Running Fix - Two Observations
Estimate running-fix error at second observation from interval, own speed, and advance-method correction - sensitivity of the fix to course/speed change.
- Ruwais (AE) - Port Card
Ruwais, AE - annual throughput ~70,000 TEU, max draft 16 m. UAE petroleum.
- S10_58 - South China trip to East Africa
S10_58 benchmark route for Supramax: South China trip to East Africa. Rate × distance → TCE.
- S1A_58 - Far East → Continent
S1A_58 benchmark route for Supramax: Far East → Continent. Rate × distance → TCE.
- S1B_58 - Canakkale → South China
S1B_58 benchmark route for Supramax: Canakkale → South China. Rate × distance → TCE.
- S3_58 - Far East to Arabian Gulf
S3_58 benchmark route for Supramax: Far East to Arabian Gulf. Rate × distance → TCE.
- S4A_58 - US Gulf to Continent
S4A_58 benchmark route for Supramax: US Gulf to Continent. Rate × distance → TCE.
- S4B_58 - Continent to US Gulf
S4B_58 benchmark route for Supramax: Continent to US Gulf. Rate × distance → TCE.
- S5_58 - WAfr to Far East
S5_58 benchmark route for Supramax: WAfr to Far East. Rate × distance → TCE.
- S8_58 - South China trip via Indonesia
S8_58 benchmark route for Supramax: South China trip via Indonesia. Rate × distance → TCE.
- S9_58 - Continent trip via Mediterranean
S9_58 benchmark route for Supramax: Continent trip via Mediterranean. Rate × distance → TCE.
- Sacrificial Anode - Service Life
Service life of a sacrificial anode (Al-In or Zn) from mass, capacity, and protection current demand - bare-anode lifetime before replacement.
- Sacrificial Anode Mass
Anode mass required to deliver a given current over an intended life, using the Faraday-style relation M = I·T / (u·ε).
- Safe Range - Shallow Water
Check ship's under-keel clearance in shallow channel.
- Safety Stock
Safety stock = z · σ · √L - how many spares to carry above expected demand to cover lead-time demand variability.
- Safety Valve Area (ASME I)
Approximate required safety-valve throat area from steam capacity and set pressure using the ASME Section I formula.
- Sailing Yacht Fuel & CO₂
Cruising / racing sailing yachts. Power-plant used for aux and manoeuvring rather than primary propulsion. Per-running-hour intensity and sail-assist fraction tell the story.
- Salvage - LOF SCOPIC Rate
Lloyd's Open Form + SCOPIC special-compensation rate - daily rate for no-success environmental salvage.
- Santos (BR) - Port Card
Santos, BR - annual throughput ~150,000 TEU, max draft 15 m. Brazil largest.
- Saturation Temperature & Pressure
Saturation temperature for a given pressure (or vice-versa) using IAPWS-IF97 approximation - the basis of every boiler / turbine calc.
- Savannah (US) - Port Card
Savannah, US - annual throughput ~130,000 TEU, max draft 14 m. US SE.
- Saybolt Universal to cSt (< 1000 cSt)
Convert SUS to cSt using the internationally-agreed conversion factor - the bridge between metric and Imperial marine units.
- Saybolt Universal to Saybolt Furol seconds
Convert SUS to SSF. Precise factor for marine fuel engineering; sourced from NIST / ISO / MEPC reference tables.
- SBTi - Shipping 1.5° Path
Science-Based Targets initiative 1.5 °C aligned path for maritime - 100 % zero-emission vessels by 2050.
- Scavenge Air Pressure - 2-Stroke Estimate
Estimated 2-stroke scavenge-air pressure at a given load given turbocharger pressure ratio and ambient conditions - baseline for verifying cylinder fill and smoke-density performance.
- SCBA Air Duration
Theoretical air-cylinder duration from cylinder volume, pressure, and consumption rate. Apply safety factor.
- Schlichting Shallow-Water Correction
Speed reduction for a given delivered power when a ship enters shallow water - Schlichting's 1934 correction.
- Schoenherr ATTC Friction Line
Alternative friction-resistance correlation (Schoenherr 1932 / ATTC) used by some model basins instead of ITTC-57. Implicit equation solved via Newton iteration.
- SCOPIC - Invocation Trigger
SCOPIC invocation trigger under LOF - threat of damage to environment enables salvor to invoke special compensation.
- SCR Urea Consumption
Urea (as 32.5 % AdBlue solution) consumption for a selective-catalytic-reduction NOx aftertreatment.
- Scrap Price - Per LDT
Vessel scrap value from LDT (lightweight) and prevailing $/LDT rates - the floor price on old ships.
- Scrubber - Wash Water pH Check
Open-loop scrubber wash water pH + PAH + turbidity compliance per MEPC.340(77).
- Scrubber SO₂/CO₂ Ratio Check
MEPC.340(77) equivalence: SO₂/CO₂ ratio must be ≤ 4.3 for 0.50 % global cap (or ≤ 21.7 for 3.5 % cap) when using an EGCS scrubber instead of compliant fuel.
- Sea Cargo Charter Alignment
Charterer-side alignment against the SCC decarbonisation trajectory.
- Sea Ice - Compressive Strength
Compressive strength of columnar sea ice as a function of temperature and strain rate - the driver for ice-hull interaction loads.
- Sea Water Cooling Pump Capacity
Q = Q_cooling_duty / (ρ·cp·ΔT) - cooling-water pump sized to reject engine heat at design ΔT.
- Seakeeping - MSW / MSH Comfort Criterion
Motion sickness incidence from ISO 2631-1 / NORDFORSK - integrated weighted acceleration exposure over 2 hours.
- Seattle-Tacoma (US) - Port Card
Seattle-Tacoma, US - annual throughput ~90,000 TEU, max draft 16 m. Pacific Northwest.
- SEEMP Combined Operational Measures
A SEEMP Part III implementation plan typically combines several operational measures (slow steaming, weather routing, hull cleaning, trim optimisation, just-in-time arrival, fuel switching, energy-saving devices). The total fuel saving from
- SEEMP Part I Measure Evaluator
Per-ship energy-efficiency plan, mandatory since 1 January 2013.
- SEEMP Part II / III Tracker
Monitors three-year CII rating history and flags SEEMP Part III triggers.
- SEEMP Part III - Corrective Action
SEEMP Part III corrective-action plan trigger - a CII rating D for 3 consecutive years or E for 1 year.
- Sensible Heat Ratio (SHR)
Ratio of sensible to total cooling load. Drives coil-apparatus-dew-point selection.
- Service Allowance - Added Resistance
Service allowance (or "sea margin") applied to trial-condition power to reach design contract - covers weather, fouling, and ageing.
- Set & Drift - Current Triangle
Resolve set and drift of a current into along-track and across-track components for leeway compensation - the classical vector triangle.
- Sewage Holding Tank - Capacity Check
Required sewage holding-tank capacity for a given POB and passage length per MARPOL Annex IV special-area carriage rules - baseline 70 L/person·day.
- Sewage Treatment - STP Efficiency
Compare STP effluent water-quality readings against MEPC.227(64) limits - BOD, TSS, fecal coliform, pH.
- SFOC - Intake Temperature Sensitivity
Change in SFOC per °C change in intake / charge-air temperature - typical 0.3-0.5 g/kWh per °C.
- Shackle (chain) to metres
Convert shackle to m. Precise factor for marine navigation engineering; sourced from NIST / ISO / MEPC reference tables.
- Shaft & Gearbox Losses
Converts engine brake power to power delivered at the propeller shaft.
- Shaft Alignment - Cold-to-Hot Sag
Cold-to-hot shaft-alignment compensation - thermal growth ME + jacket water heating compensates geometry.
- Shaft Diameter (IACS UR M68)
Minimum intermediate shaft diameter per IACS UR M68 from rated power, rpm and material UTS.
- Shaft Generator - Output Capability
Shaft-generator available electrical power given main-engine load and PTO design capacity - enables one-generator-at-sea config on slow-steaming.
- Shaft horsepower to kW
Convert shp to kW. Precise factor for marine engine engineering; sourced from NIST / ISO / MEPC reference tables.
- Shaft Torsional - 1st Critical Speed
First torsional critical speed of the propulsion shaft - must stay outside the engine's continuous-running band.
- Shaft-Generator / PTO Credit
Fuel and CO₂ impact of running a Power Take-Off (PTO) shaft generator instead of an auxiliary engine.
- Shanghai (CN) - Port Card
Shanghai, CN - annual throughput ~350,000 TEU, max draft 18 m. Busiest container port.
- ShaPoLi - Shaft Power Limitation
Identical to EPL:
- Shear Flow - Q·V/I Check
Shear flow q = V·Q/I for a longitudinal member at a specific height above keel - the stress check for side plating, deck plating.
- Shear Force - Quarter-Length Estimate
Still-water shear force at quarter-length for a simplified load case - screening sanity-check before full longitudinal-strength analysis.
- Shell Plating - Rule Minimum Thickness
Rule-minimum shell-plating thickness by ship length per class standard formulation - t_min = k·√L + corrosion addition.
- Shenzhen (CN) - Port Card
Shenzhen, CN - annual throughput ~300,000 TEU, max draft 16 m. Yantian + Shekou.
- SHEX SHINC time exclusion
Convert elapsed hours into counted laytime under SHEX or SHINC.
- Ship-Ship Interaction - Bank / Meeting
Ship-Ship Interaction - Bank / Meeting - concept summary and example calculation.
- Shipboard Incinerator - Capacity Check
Estimate daily waste generation and required incinerator throughput per MEPC.244(66) (revised IMO Type-Approval) - plastic, food, sludge.
- Shipping - Asset Depreciation Schedule
Vessel depreciation accounting - typically 20-30 year useful life, straight-line or units-of-production, over scrap value.
- Shore Power - Required Cable Size
Shore-connection cable size for high-voltage ship-shore power per ISO/IEC/IEEE 80005-1 - based on load current and cable derating for parallel runs.
- Short Circuit - Switchboard kA Rating
Switchboard fault-rating check - Icu (ultimate breaking capacity) ≥ calculated I_k'' with 10 % margin.
- Short Tons to Metric
Convert st to t using the internationally-agreed conversion factor - the bridge between metric and Imperial marine units.
- Short-Circuit Current (IEC 61363)
Peak and RMS symmetrical short-circuit currents on a shipboard bus - IEC 61363-1 approach for switchgear sizing.
- SHP vs DHP - Transmission Efficiency
Shaft horse power (SHP) vs delivered horse power (DHP) accounting for bearing losses, gearbox / shaft-line transmission.
- Sig. Wave Height from Wind Speed
Fully-developed seas: H_s ≈ 0.22 · V² / g · f(fetch). Simplified Hasselmann + Pierson-Moskowitz asymptote.
- Significant to Maximum Wave Height
Maximum expected wave height in a 3-hour storm given significant wave height, using Rayleigh statistics - 1/n highest × σ relationship.
- Simpson's First Rule - Area Integrator
Compute area under a curve sampled at three equally-spaced ordinates using Simpson's first rule - the building block for every naval-architecture volume, area and centroid integration.
- Simpson's Second Rule - 4-Ordinate Integrator
Area under a curve sampled at four equally-spaced ordinates using Simpson's second (3/8) rule - used when ordinate count is a multiple of 3 + 1.
- Singapore (SG) - Port Card
Singapore, SG - annual throughput ~500,000 TEU, max draft 20 m. Bunker capital world.
- singapore greenship reuate
See live calculator aside for regulator URLs.
- Slam Location - Worst-Case Station
Longitudinal station most susceptible to bow slamming based on vertical motion and relative velocity - typically 0.08–0.15 L from FP.
- Slamming Relative Velocity Threshold
Bottom-slamming threshold velocity v_thresh = 0.093·√(g·L) from Ochi-Motter 1971.
- Slow Steaming - Fuel Savings per Voyage
Fuel savings from reducing voyage speed - cubic-law estimate compared to baseline speed over a fixed route.
- Slow Steaming Savings
Fuel and CO₂ impact of reducing voyage speed, accounting for the cube-law main-engine behaviour and the constant auxiliary baseline.
- Slow-Steaming GHG - CII Rating Sensitivity
CII sensitivity to speed reduction - cubic fuel-speed relationship improves CII but reduces transport work.
- Sludge Tank - MARPOL Minimum Capacity
Minimum sludge-tank capacity per MARPOL Annex I Reg. 12.1 - based on daily fuel consumption and voyage length between ports of sludge landing.
- Small Commercial Craft Fuel & CO₂
Pilot cutters, crew boats, patrol craft, whale-watching boats. Outside CII scope; CO₂ per operating hour is the portable benchmark across work-boat categories.
- SMWW 2540D - Total suspended solids
SMWW 2540D test method - Total suspended solids. Common lab test used for marine water quality assessment.
- SMWW 5210B - Biochemical oxygen demand
SMWW 5210B test method - Biochemical oxygen demand. Common lab test used for marine water quality assessment.
- SMWW 9222D - Faecal coliform - membrane filter
SMWW 9222D test method - Faecal coliform - membrane filter. Common lab test used for marine water quality assessment.
- Sohar (OM) - Port Card
Sohar, OM - annual throughput ~70,000 TEU, max draft 16 m. Oman hub.
- Solar PV on Deck
Annual energy yield of a deck-mounted photovoltaic array and the auxiliary-engine fuel it displaces.
- SOLAS - Fire Drill Frequency
Minimum frequency of fire-drill / abandonment-drill per SOLAS III Reg. 19 - applies to all crew.
- SOLAS - Probabilistic R for Passenger Ships
Required subdivision index R for passenger ships per SOLAS II-1 Reg. 6.2 - based on N (lifeboat + extra persons).
- SOLAS I/10 - Hull surveys
SOLAS Chapter I Regulation 10 - Hull surveys. Scope + typical compliance check.
- SOLAS I/12 - Issuance of certificates
SOLAS Chapter I Regulation 12 - Issuance of certificates. Scope + typical compliance check.
- SOLAS II-1/10 - Construction of WT bulkheads
SOLAS Chapter II-1 Regulation 10 - Construction of WT bulkheads. Scope + typical compliance check.
- SOLAS II-1/11 - Testing of WT bulkheads
SOLAS Chapter II-1 Regulation 11 - Testing of WT bulkheads. Scope + typical compliance check.
- SOLAS II-1/12 - Peak and machinery bulkheads
SOLAS Chapter II-1 Regulation 12 - Peak and machinery bulkheads. Scope + typical compliance check.
- SOLAS II-1/13 - Openings in WT bulkheads
SOLAS Chapter II-1 Regulation 13 - Openings in WT bulkheads. Scope + typical compliance check.
- SOLAS II-1/14 - WT doors in passenger ships
SOLAS Chapter II-1 Regulation 14 - WT doors in passenger ships. Scope + typical compliance check.
- SOLAS II-1/15 - Openings in shell plating
SOLAS Chapter II-1 Regulation 15 - Openings in shell plating. Scope + typical compliance check.
- SOLAS II-1/16 - Construction of WT subdivision
SOLAS Chapter II-1 Regulation 16 - Construction of WT subdivision. Scope + typical compliance check.
- SOLAS II-1/17 - Integrity of hull above bulkhead deck
SOLAS Chapter II-1 Regulation 17 - Integrity of hull above bulkhead deck. Scope + typical compliance check.
- SOLAS II-1/2 - Definitions
SOLAS Chapter II-1 Regulation 2 - Definitions. Scope + typical compliance check.
- SOLAS II-1/20 - Loading & operating condition
SOLAS Chapter II-1 Regulation 20 - Loading & operating condition. Scope + typical compliance check.
- SOLAS II-1/22 - Stability information
SOLAS Chapter II-1 Regulation 22 - Stability information. Scope + typical compliance check.
- SOLAS II-1/23 - Construction of passenger ships
SOLAS Chapter II-1 Regulation 23 - Construction of passenger ships. Scope + typical compliance check.
- SOLAS II-1/25 - Damage control plans
SOLAS Chapter II-1 Regulation 25 - Damage control plans. Scope + typical compliance check.
- SOLAS II-1/26 - Machinery
SOLAS Chapter II-1 Regulation 26 - Machinery. Scope + typical compliance check.
- SOLAS II-1/29 - Steering gear
SOLAS Chapter II-1 Regulation 29 - Steering gear. Scope + typical compliance check.
- SOLAS II-1/32 - Starting arrangements
SOLAS Chapter II-1 Regulation 32 - Starting arrangements. Scope + typical compliance check.
- SOLAS II-1/36 - Protection against noise
SOLAS Chapter II-1 Regulation 36 - Protection against noise. Scope + typical compliance check.
- SOLAS II-1/37 - Communication between bridge and ER
SOLAS Chapter II-1 Regulation 37 - Communication between bridge and ER. Scope + typical compliance check.
- SOLAS II-1/4 - General
SOLAS Chapter II-1 Regulation 4 - General. Scope + typical compliance check.
- SOLAS II-1/41 - Electrical power
SOLAS Chapter II-1 Regulation 41 - Electrical power. Scope + typical compliance check.
- SOLAS II-1/42 - Emergency source
SOLAS Chapter II-1 Regulation 42 - Emergency source. Scope + typical compliance check.
- SOLAS II-1/43 - Emergency source in passenger ships
SOLAS Chapter II-1 Regulation 43 - Emergency source in passenger ships. Scope + typical compliance check.
- SOLAS II-1/5 - Intact stability
SOLAS Chapter II-1 Regulation 5 - Intact stability. Scope + typical compliance check.
- SOLAS II-1/8 - Watertight integrity
SOLAS Chapter II-1 Regulation 8 - Watertight integrity. Scope + typical compliance check.
- SOLAS II-1/9 - Double bottoms
SOLAS Chapter II-1 Regulation 9 - Double bottoms. Scope + typical compliance check.
- SOLAS II-2 - Safe Return to Port Time
Safe-Return-to-Port (SRtP) endurance check for passenger ships - minimum 3 hours on each of 13 essential systems after a design casualty.
- SOLAS II-2/1 - Application fire safety
SOLAS Chapter II-2 Regulation 1 - Application fire safety. Scope + typical compliance check.
- SOLAS II-2/10 - Fire fighting
SOLAS Chapter II-2 Regulation 10 - Fire fighting. Scope + typical compliance check.
- SOLAS II-2/11 - Structural integrity
SOLAS Chapter II-2 Regulation 11 - Structural integrity. Scope + typical compliance check.
- SOLAS II-2/12 - Crew notification
SOLAS Chapter II-2 Regulation 12 - Crew notification. Scope + typical compliance check.
- SOLAS II-2/13 - Means of escape
SOLAS Chapter II-2 Regulation 13 - Means of escape. Scope + typical compliance check.
- SOLAS II-2/14 - Operational readiness
SOLAS Chapter II-2 Regulation 14 - Operational readiness. Scope + typical compliance check.
- SOLAS II-2/15 - Instructions / drills
SOLAS Chapter II-2 Regulation 15 - Instructions / drills. Scope + typical compliance check.
- SOLAS II-2/16 - Operations
SOLAS Chapter II-2 Regulation 16 - Operations. Scope + typical compliance check.
- SOLAS II-2/17 - Alternative designs
SOLAS Chapter II-2 Regulation 17 - Alternative designs. Scope + typical compliance check.
- SOLAS II-2/18 - Helicopter facilities
SOLAS Chapter II-2 Regulation 18 - Helicopter facilities. Scope + typical compliance check.
- SOLAS II-2/19 - Carriage of DG
SOLAS Chapter II-2 Regulation 19 - Carriage of DG. Scope + typical compliance check.
- SOLAS II-2/20 - Vehicle/special category spaces
SOLAS Chapter II-2 Regulation 20 - Vehicle/special category spaces. Scope + typical compliance check.
- SOLAS II-2/21 - Casualty threshold passenger ship
SOLAS Chapter II-2 Regulation 21 - Casualty threshold passenger ship. Scope + typical compliance check.
- SOLAS II-2/22 - Design for safe return passenger
SOLAS Chapter II-2 Regulation 22 - Design for safe return passenger. Scope + typical compliance check.
- SOLAS II-2/23 - Safety centre passenger
SOLAS Chapter II-2 Regulation 23 - Safety centre passenger. Scope + typical compliance check.
- SOLAS II-2/4 - Probability of ignition
SOLAS Chapter II-2 Regulation 4 - Probability of ignition. Scope + typical compliance check.
- SOLAS II-2/5 - Fire growth potential
SOLAS Chapter II-2 Regulation 5 - Fire growth potential. Scope + typical compliance check.
- SOLAS II-2/7 - Detection and alarm
SOLAS Chapter II-2 Regulation 7 - Detection and alarm. Scope + typical compliance check.
- SOLAS II-2/8 - Control of smoke spread
SOLAS Chapter II-2 Regulation 8 - Control of smoke spread. Scope + typical compliance check.
- SOLAS II-2/9 - Containment
SOLAS Chapter II-2 Regulation 9 - Containment. Scope + typical compliance check.
- SOLAS III/1 - Application LSA
SOLAS Chapter III Regulation 1 - Application LSA. Scope + typical compliance check.
- SOLAS III/10 - Manning survival craft
SOLAS Chapter III Regulation 10 - Manning survival craft. Scope + typical compliance check.
- SOLAS III/11 - Survival craft muster arrangement
SOLAS Chapter III Regulation 11 - Survival craft muster arrangement. Scope + typical compliance check.
- SOLAS III/12 - Embarkation stations
SOLAS Chapter III Regulation 12 - Embarkation stations. Scope + typical compliance check.
- SOLAS III/13 - Stowage survival craft
SOLAS Chapter III Regulation 13 - Stowage survival craft. Scope + typical compliance check.
- SOLAS III/14 - Stowage rescue boats
SOLAS Chapter III Regulation 14 - Stowage rescue boats. Scope + typical compliance check.
- SOLAS III/15 - MES arrangements
SOLAS Chapter III Regulation 15 - MES arrangements. Scope + typical compliance check.
- SOLAS III/16 - Survival craft launching
SOLAS Chapter III Regulation 16 - Survival craft launching. Scope + typical compliance check.
- SOLAS III/19 - Emergency training and drills
SOLAS Chapter III Regulation 19 - Emergency training and drills. Scope + typical compliance check.
- SOLAS III/20 - Operational readiness
SOLAS Chapter III Regulation 20 - Operational readiness. Scope + typical compliance check.
- SOLAS III/21 - Survival craft capacity
SOLAS Chapter III Regulation 21 - Survival craft capacity. Scope + typical compliance check.
- SOLAS III/31 - Survival craft and rescue boats
SOLAS Chapter III Regulation 31 - Survival craft and rescue boats. Scope + typical compliance check.
- SOLAS III/6 - Communications
SOLAS Chapter III Regulation 6 - Communications. Scope + typical compliance check.
- SOLAS III/7 - Personal life-saving
SOLAS Chapter III Regulation 7 - Personal life-saving. Scope + typical compliance check.
- SOLAS III/8 - Muster list
SOLAS Chapter III Regulation 8 - Muster list. Scope + typical compliance check.
- SOLAS III/9 - Operating instructions
SOLAS Chapter III Regulation 9 - Operating instructions. Scope + typical compliance check.
- SOLAS IV/10 - Sea area A3
SOLAS Chapter IV Regulation 10 - Sea area A3. Scope + typical compliance check.
- SOLAS IV/11 - Sea area A4
SOLAS Chapter IV Regulation 11 - Sea area A4. Scope + typical compliance check.
- SOLAS IV/13 - Sources of energy (radio)
SOLAS Chapter IV Regulation 13 - Sources of energy (radio). Scope + typical compliance check.
- SOLAS IV/14 - Performance standards
SOLAS Chapter IV Regulation 14 - Performance standards. Scope + typical compliance check.
- SOLAS IV/3 - Exemptions radio
SOLAS Chapter IV Regulation 3 - Exemptions radio. Scope + typical compliance check.
- SOLAS IV/4 - Functional requirements radio
SOLAS Chapter IV Regulation 4 - Functional requirements radio. Scope + typical compliance check.
- SOLAS IV/5 - Provision of radio services
SOLAS Chapter IV Regulation 5 - Provision of radio services. Scope + typical compliance check.
- SOLAS IV/6 - Radio installations
SOLAS Chapter IV Regulation 6 - Radio installations. Scope + typical compliance check.
- SOLAS IV/7 - Radio equipment general
SOLAS Chapter IV Regulation 7 - Radio equipment general. Scope + typical compliance check.
- SOLAS IV/8 - Sea area A1
SOLAS Chapter IV Regulation 8 - Sea area A1. Scope + typical compliance check.
- SOLAS IV/9 - Sea area A2
SOLAS Chapter IV Regulation 9 - Sea area A2. Scope + typical compliance check.
- SOLAS IX/3 - ISM - documents
SOLAS Chapter IX Regulation 3 - ISM - documents. Scope + typical compliance check.
- SOLAS IX/4 - ISM - certification
SOLAS Chapter IX Regulation 4 - ISM - certification. Scope + typical compliance check.
- SOLAS V/14 - Manning
SOLAS Chapter V Regulation 14 - Manning. Scope + typical compliance check.
- SOLAS V/15 - Bridge design principles
SOLAS Chapter V Regulation 15 - Bridge design principles. Scope + typical compliance check.
- SOLAS V/18 - Approval, survey, performance of nav equipment
SOLAS Chapter V Regulation 18 - Approval, survey, performance of nav equipment. Scope + typical compliance check.
- SOLAS V/19 - Carriage requirements
SOLAS Chapter V Regulation 19 - Carriage requirements. Scope + typical compliance check.
- SOLAS V/2 - Definitions (navigation)
SOLAS Chapter V Regulation 2 - Definitions (navigation). Scope + typical compliance check.
- SOLAS V/20 - VDR
SOLAS Chapter V Regulation 20 - VDR. Scope + typical compliance check.
- SOLAS V/21 - International Code of Signals
SOLAS Chapter V Regulation 21 - International Code of Signals. Scope + typical compliance check.
- SOLAS V/22 - Navigation bridge visibility
SOLAS Chapter V Regulation 22 - Navigation bridge visibility. Scope + typical compliance check.
- SOLAS V/23 - Pilot transfer arrangement
SOLAS Chapter V Regulation 23 - Pilot transfer arrangement. Scope + typical compliance check.
- SOLAS V/24 - Use of heading control or track
SOLAS Chapter V Regulation 24 - Use of heading control or track. Scope + typical compliance check.
- SOLAS V/25 - Operation of main source
SOLAS Chapter V Regulation 25 - Operation of main source. Scope + typical compliance check.
- SOLAS V/26 - Steering gear - tests & drills
SOLAS Chapter V Regulation 26 - Steering gear - tests & drills. Scope + typical compliance check.
- SOLAS V/33 - Distress alerts and MSS
SOLAS Chapter V Regulation 33 - Distress alerts and MSS. Scope + typical compliance check.
- SOLAS VI/2 - Cargo information (VGM)
SOLAS Chapter VI Regulation 2 - Cargo information (VGM). Scope + typical compliance check.
- SOLAS VI/5 - Stowage and securing
SOLAS Chapter VI Regulation 5 - Stowage and securing. Scope + typical compliance check.
- SOLAS VII/3 - Carriage of dangerous goods
SOLAS Chapter VII Regulation 3 - Carriage of dangerous goods. Scope + typical compliance check.
- SOLAS X/3 - HSC Code applicability
SOLAS Chapter X Regulation 3 - HSC Code applicability. Scope + typical compliance check.
- SOLAS XI-1/3 - Identification number
SOLAS Chapter XI-1 Regulation 3 - Identification number. Scope + typical compliance check.
- SOLAS XI-1/6 - Administration investigation
SOLAS Chapter XI-1 Regulation 6 - Administration investigation. Scope + typical compliance check.
- SOLAS XI-2/6 - Ship Security Alert System
SOLAS Chapter XI-2 Regulation 6 - Ship Security Alert System. Scope + typical compliance check.
- SOLAS XI-2/8 - Master's authority security
SOLAS Chapter XI-2 Regulation 8 - Master's authority security. Scope + typical compliance check.
- Sommerfeld Number
S = (η·N)/(P)·(R/c)² - dimensionless bearing operating parameter. Low S → thick film, hydrodynamic; high S → thin, boundary.
- Southampton (GB) - Port Card
Southampton, GB - annual throughput ~90,000 TEU, max draft 14 m. UK South.
- SOₓ from Fuel Sulphur
- SOx Scrubber - NaOH Dosing Rate
NaOH consumption rate for a closed-loop EGCS - dependent on fuel sulphur mass flow and stoichiometry.
- Specific fuel consumption — Imperial to metric
Convert lb/BHP-hr to g/kWh. Precise factor for marine fuel engineering; sourced from NIST / ISO / MEPC reference tables.
- Specific fuel consumption — metric to Imperial
Convert g/kWh to lb/BHP-hr. Precise factor for marine fuel engineering; sourced from NIST / ISO / MEPC reference tables.
- Specific gravity to API (petroleum)
Convert SG to °API. Precise factor for marine fuel engineering; sourced from NIST / ISO / MEPC reference tables.
- Specific heat — SI to Imperial
Convert kJ/kg·K to Btu/lb·°F. Precise factor for marine thermo engineering; sourced from NIST / ISO / MEPC reference tables.
- Specific Speed Ns
Dimensionless ratio that characterises pump type. Low Ns (< 25) = radial; mid (25–50) = mixed flow; high (> 50) = axial.
- Speed Trial - Weather Correction (ISO 15016)
Apply wind and wave corrections to measured trial speed per ISO 15016:2015 - the contract speed verification method.
- Speed–Power Cubic Fit
Projects delivered power at any speed from a reference point using the Rayleigh cube law with an adjustable exponent.
- Splash-Filling Rest Time (ISGOTT)
Minimum rest time after initial loading before ullage measurements, per ISGOTT: allow 30 min for static-electricity decay before any non-bonded measuring tape is lowered.
- Sprinkler - Required Flow Rate
Sprinkler system flow per SOLAS II-2 Reg. 10 / FSS Ch. 8 - 5 L/m²·min over the largest hypothetical fire area.
- Squat (Barrass)
Maximum squat in metres using the Barrass simplified formula for open water and canal / shallow conditions.
- Standard to Normal cubic metres per hour (gas)
Convert Sm³/h to Nm³/h. Precise factor for marine gas engineering; sourced from NIST / ISO / MEPC reference tables.
- Starting Air Compressor - Sizing
Starting-air compressor sizing per SOLAS II-1 Reg. 32 - 12 consecutive starts in 1 h for reversing engine without reducer.
- Starting Air Receiver Capacity
SOLAS II-1 Reg 32: starting air for ≥ 12 reversing starts (or ≥ 6 non-reversing) on a reciprocating main engine without replenishment.
- Statement of Facts builder
Compute total elapsed and net laytime hours from a list of port events.
- Statute Miles to Nautical Miles
Convert mi to nm using the internationally-agreed conversion factor - the bridge between metric and Imperial marine units.
- STAWAVE-2 Added Resistance in Waves
ITTC STAWAVE-2 closed-form estimate of mean added resistance in head-seas irregular waves. Basis for the EEDI/EEXI weather factor $f_w$.
- STCW - Ice Navigation Certificate
Ice-navigation certificate requirement per STCW V/4 - basic vs advanced depending on role + ice concentration.
- STCW - Minimum Safe Manning
Minimum safe-manning guidance per IMO Res. A.1047(27) - screening check against typical number of officers, ratings, and deck/engine department.
- STCW - Tanker Certification Requirement
Tanker-endorsement certification tier per STCW Reg. V/1 - Basic vs Advanced training depending on role.
- STCW / MLC - Rest-Hours Compliance
STCW/MLC 2006 rest-hours check - minimum 10 hours rest in any 24 h and 77 h in any 7-day period.
- Steam Trap - Failure Rate
Steam trap failure rate benchmark - ≥ 10 % failed = significant energy loss.
- Steel Grade Selection (IACS UR W11)
Minimum steel grade by plate thickness and structural category (primary / secondary / tertiary) per IACS UR W11.
- Steering-Gear Hydraulic Torque
Required hydraulic torque on the rudder stock to satisfy the SOLAS II-1 Reg 29 duty: full rudder 35°→35° in ≤ 28 s at service speed.
- Stefan–Boltzmann Radiation
Net radiative heat transfer between two grey surfaces: Q = ε·σ·A·(T₁⁴ − T₂⁴).
- Stiffened Panel Euler Buckling
Euler critical stress σ_cr = π²·E·I / (L² · A) - the classical buckling limit for a pin-ended stiffened panel.
- Stiffener Section Modulus - Rule Check
Required section modulus of a longitudinal stiffener under lateral pressure - Z = c·s·l²·p/σ.
- Still-Water Bending Moment (IACS UR S11)
IACS UR S11 permissible still-water bending moment (hogging and sagging) as a function of L, B and Cb.
- Stoichiometric Air–Fuel Ratio
Theoretical AFR from elemental composition: AFR = (11.53·C + 34.34·(H − O/8) + 4.32·S) / 100, for mass fractions expressed in percent.
- Stopping Distance - Crash Stop
Crash-stop distance (head reach) from full-ahead speed per IMO A.751 - ≤ 15 ship-lengths unless waivered for VLCCs.
- Storm Avoidance - Right Semicircle Rule
Storm Avoidance - Right Semicircle Rule - concept summary and example calculation.
- Stribeck Regime Check
Position on the Stribeck curve from the Hersey parameter η·N/P - boundary, mixed, or full-film.
- Strip Theory - Added Mass (Heave)
Heave added mass coefficient m33 from strip-theory - the hydrodynamic inertia term used in ship motion equations.
- Stripping Efficiency Check
Verify stripping achieves the Annex II limit of 75 L per Cat Y/Z tank (100 L for existing ships, 75 L for new/Cat X).
- Subdivision - Attained Index A
Attained subdivision index A from partial indices at three drafts - ds (deepest), dp (partial), dl (lightest) per SOLAS II-1 Reg. 6.
- Subdivision - p-Factor (Damage Probability)
Probability p of damage in a given longitudinal zone per SOLAS II-1 Reg. 7-1 - based on zone length and position along L_S.
- Subdivision - Required Index R
Required subdivision index R for a cargo ship per SOLAS II-1 Reg. 6 - a function of subdivision length L_s.
- Subdivision - s-Factor (Survival Probability)
Probability of survival s in a damage case based on residual GZ curve - A = Σ (p · s · v) for attained subdivision index.
- Suez Canal - SCNT & Toll
Suez Canal Net Tonnage and indicative toll per SCA circular - SCNT differs from ITC NT by Suez-specific deductions and adds.
- Sun Altitude - Refraction Correction
Refraction correction for a sextant sun altitude at standard atmospheric conditions - Bennett empirical formula.
- Sun Amplitude - Compass Error
Sun's amplitude at rising / setting for compass deviation checks.
- Sun Azimuth - Time-Azimuth
Sun azimuth at local apparent time from declination + LHA.
- Superyacht Fuel & CO₂
Yachts 30–180 m. Outside CII scope but increasingly audited by owners and charterers against a CO₂-per-day or per-guest-night intensity.
- Surface tension — SI to CGS
Convert N/m to dyne/cm. Precise factor for marine fluids engineering; sourced from NIST / ISO / MEPC reference tables.
- SW Cooling - Pump Flow Required
Sea-water cooling-pump flow from total heat rejected, ΔT, and SW properties.
- Sway–Roll Coupling - Natural Frequency
Coupled sway-roll natural frequency including added mass - the basis for transverse-wave resonance analysis.
- Sydney Botany (AU) - Port Card
Sydney Botany, AU - annual throughput ~90,000 TEU, max draft 15 m. AU East.
- System - Accommodation Ladder: Hydraulic deployment
Accommodation Ladder component card: Hydraulic deployment. SOLAS III carriage.
- System - Air Dryer: Refrigerant / desiccant
Air Dryer component card: Refrigerant / desiccant. Prevents moisture in control air.
- System - Air Receiver: Pressure vessel
Air Receiver component card: Pressure vessel. 30 bar for starting, 7 bar for control.
- System - AIS Transponder: Class A
AIS Transponder component card: Class A. Auto-transmit at 12.5 W.
- System - Anchor Windlass: Hydraulic or electric
Anchor Windlass component card: Hydraulic or electric. IACS UR A1 sizing.
- System - Auxiliary Engine: Medium-speed 4-stroke
Auxiliary Engine component card: Medium-speed 4-stroke. MAN / Wärtsilä / Yanmar gensets.
- System - Azimuth Thruster: Pod / L-drive
Azimuth Thruster component card: Pod / L-drive. ASD / DP installations.
- System - Battery - Emergency: Lead-acid VRLA
Battery - Emergency component card: Lead-acid VRLA. 6-hour backup per SOLAS IV/13.
- System - Battery - ESS: Li-ion LFP
Battery - ESS component card: Li-ion LFP. Hybrid propulsion, MWh capacity.
- System - Bilge Pump ER: Self-priming centrifugal
Bilge Pump ER component card: Self-priming centrifugal. 10-20 m³/h, 3 bar, per SOLAS II-1 21.
- System - BNWAS: Watch alarm
BNWAS component card: Watch alarm. SOLAS V/19.2.2.3.
- System - Boiler Feed Pump: Multi-stage centrifugal
Boiler Feed Pump component card: Multi-stage centrifugal. 3-5× boiler MCR capacity.
- System - Boiler Water Sampler: Cooling coil + tap
Boiler Water Sampler component card: Cooling coil + tap. Weekly chemistry sample.
- System - Bow Thruster: Tunnel or azimuth
Bow Thruster component card: Tunnel or azimuth. 500-3000 kW manoeuvring.
- System - Calorifier: Hot water heater
Calorifier component card: Hot water heater. Steam or electric heating, 60-70 °C storage.
- System - Capstan: Hydraulic / electric
Capstan component card: Hydraulic / electric. Single-line mooring.
- System - Cargo Heater: Steam coil
Cargo Heater component card: Steam coil. In-tank or inline, LMTD-sized.
- System - Cascade Tank: Feed water surge tank
Cascade Tank component card: Feed water surge tank. Condensate + makeup water.
- System - Central Cooler: Plate cooler
Central Cooler component card: Plate cooler. SW vs FW, 32-40 °C outlet.
- System - Chlorinator: Electro-chlorinator
Chlorinator component card: Electro-chlorinator. Hypochlorite for potable water treatment.
- System - Condensate Tank: Gravity collection
Condensate Tank component card: Gravity collection. Recovers steam condensate.
- System - Control Air Compressor: Screw
Control Air Compressor component card: Screw. 7-10 bar instrument air.
- System - Controllable Pitch Propeller: Hydraulic hub
Controllable Pitch Propeller component card: Hydraulic hub. Rexroth or MAN spares.
- System - Davit - Lifeboat: Gravity / hinged
Davit - Lifeboat component card: Gravity / hinged. MSC.402(96) compliant.
- System - Deaerator: Spray / tray type
Deaerator component card: Spray / tray type. Removes O₂ from feed water.
- System - ECDIS: IEC 61174 approved
ECDIS component card: IEC 61174 approved. SOLAS V/19 + paper chart backup.
- System - Echo Sounder: Single-beam
Echo Sounder component card: Single-beam. IEC 61260 approved.
- System - Emergency Bilge Pump: Vertical submersible
Emergency Bilge Pump component card: Vertical submersible. ≥ 50 m³/h, own power source.
- System - Emergency Genset: High-speed diesel
Emergency Genset component card: High-speed diesel. Class-rule sizing, ≤ 45 s start.
- System - Emergency Switchboard: Separate deck
Emergency Switchboard component card: Separate deck. Outside ER, 24-hour feed.
- System - EPIRB: 406 MHz float-free
EPIRB component card: 406 MHz float-free. SOLAS IV/7.1.6.
- System - Exhaust Gas Boiler: Composite / integrated
Exhaust Gas Boiler component card: Composite / integrated. On ME exhaust, 4-8 bar steam.
- System - Flash Separator: Steam drying
Flash Separator component card: Steam drying. Removes moisture from saturated steam.
- System - Fuel Heater: Steam heat exchanger
Fuel Heater component card: Steam heat exchanger. HFO heated to 130-150 °C.
- System - Fuel Oil Purifier: Westfalia / Alfa Laval
Fuel Oil Purifier component card: Westfalia / Alfa Laval. High-speed centrifugal, 1.5-2 × fuel flow.
- System - Fuel Viscosity Controller: Inline viscometer
Fuel Viscosity Controller component card: Inline viscometer. Controls heating to 12-17 cSt injection.
- System - FW generator: Plate-type evaporator
FW generator component card: Plate-type evaporator. 10-35 m³/day, 3-5 bar vacuum, 98 °C jacket water.
- System - FW generator: Shell-and-tube evaporator
FW generator component card: Shell-and-tube evaporator. 35-60 m³/day, older installations.
- System - FW Pressure Pump: Multi-stage centrifugal
FW Pressure Pump component card: Multi-stage centrifugal. 3-5 bar discharge, VFD controlled.
- System - Generator Jacket Cooler: Plate cooler
Generator Jacket Cooler component card: Plate cooler. Aux-engine jacket water cooling.
- System - GPS / GNSS: Multi-constellation
GPS / GNSS component card: Multi-constellation. < 5 m accuracy.
- System - Gyrocompass: Laser / mechanical
Gyrocompass component card: Laser / mechanical. SOLAS V/19, 0.5° accuracy.
- System - Horn / Whistle: Electric / air-powered
Horn / Whistle component card: Electric / air-powered. COLREGs Rule 33 compliant.
- System - Hydrophore: Membrane tank
Hydrophore component card: Membrane tank. Pressure 3-5 bar, maintains FW supply.
- System - Immersion Suit: Polar / Arctic
Immersion Suit component card: Polar / Arctic. -20 to -30 °C survival.
- System - Inert Gas Plant: Flue gas scrubber
Inert Gas Plant component card: Flue gas scrubber. ≤ 5 % O₂ at deck seal.
- System - Lifejacket: SOLAS approved
Lifejacket component card: SOLAS approved. LSA Code 2.2.
- System - Liferaft: Inflatable 25-pax
Liferaft component card: Inflatable 25-pax. SOLAS III/31, HRU release.
- System - LRIT Terminal: INMARSAT / Iridium
LRIT Terminal component card: INMARSAT / Iridium. SOLAS V/19-1.
- System - Lube Oil Cooler: Plate heat exchanger
Lube Oil Cooler component card: Plate heat exchanger. Titanium or stainless, SW cooled.
- System - Lube Oil Purifier: Separator
Lube Oil Purifier component card: Separator. System oil conditioning, continuous operation.
- System - Magnetic Compass: Class II
Magnetic Compass component card: Class II. Binnacle + deviation card.
- System - Main Cargo Pump: Centrifugal deep-well
Main Cargo Pump component card: Centrifugal deep-well. 1000-5000 m³/h, submerged in cargo tank.
- System - Main Engine CAC: Plate-fin cooler
Main Engine CAC component card: Plate-fin cooler. Air side fouling monitored.
- System - Main Engine Jacket Cooler: Tube-type
Main Engine Jacket Cooler component card: Tube-type. Jacket water cooled by SW.
- System - Main Engine: Slow-speed 2-stroke
Main Engine component card: Slow-speed 2-stroke. MAN ES or WinGD, direct drive.
- System - Main Switchboard: IP32 drawout
Main Switchboard component card: IP32 drawout. 440 V or 6.6 kV, class approved.
- System - MES Chute: Inflatable
MES Chute component card: Inflatable. Cruise / pax ro-ro.
- System - Mooring Winch: Hydraulic or electric
Mooring Winch component card: Hydraulic or electric. OCIMF MEG4 design load.
- System - Navigation Light: LED 72 W bulb-equiv
Navigation Light component card: LED 72 W bulb-equiv. COLREGs visibility.
- System - Nitrogen Generator: Membrane PSA
Nitrogen Generator component card: Membrane PSA. 95-99.9 % pure N₂, 0.5-3 Nm³/h for small units.
- System - ODME: Cargo oil discharge monitor
ODME component card: Cargo oil discharge monitor. Reg 34, ≤ 30 L/nm.
- System - Oil-Fired Boiler: Alfa Laval Aalborg
Oil-Fired Boiler component card: Alfa Laval Aalborg. Auxiliary steam + in-port operation.
- System - OWS 15 ppm: Coalescing + filter
OWS 15 ppm component card: Coalescing + filter. MEPC.107(49), automatic recirculation.
- System - Pilot Ladder: Rope + wood
Pilot Ladder component card: Rope + wood. SOLAS V/23.
- System - Potable FW Tank: SS304 tank
Potable FW Tank component card: SS304 tank. Epoxy-coated steel or 304L stainless.
- System - Radar - S-band: Long-range
Radar - S-band component card: Long-range. MSC.192(79) Type approval.
- System - Radar - X-band: Short-range
Radar - X-band component card: Short-range. CSC / arpa.
- System - Rescue Boat: FRP + diesel
Rescue Boat component card: FRP + diesel. High-speed, ≥ 6 kn.
- System - RO Plant: High-pressure membrane
RO Plant component card: High-pressure membrane. 50-200 bar operation, 40-45 % recovery.
- System - Rudder: Spade / semi-spade / full
Rudder component card: Spade / semi-spade / full. DNV Pt.3 Ch.14 sizing.
- System - SART: Radar transponder
SART component card: Radar transponder. X-band, detected 5-10 nm.
- System - Shore Power Connection: HVSC 6.6 / 11 kV
Shore Power Connection component card: HVSC 6.6 / 11 kV. ISO/IEC/IEEE 80005.
- System - Speed Log: Pitot / Doppler
Speed Log component card: Pitot / Doppler. STW + SOG.
- System - Starting Air Compressor: Reciprocating
Starting Air Compressor component card: Reciprocating. 30 bar, 12 consecutive starts.
- System - Steam Relief Valve: Spring-loaded
Steam Relief Valve component card: Spring-loaded. Protects boiler pressure limit.
- System - Steam Trap: Thermostatic or float
Steam Trap component card: Thermostatic or float. Returns condensate, blocks steam.
- System - Steering Gear: Rotary vane / ram
Steering Gear component card: Rotary vane / ram. SOLAS II-1/29, 35° each side 28 s.
- System - Stern Thruster: Tunnel
Stern Thruster component card: Tunnel. Assists berthing.
- System - Stripping Pump Cargo: Reciprocating
Stripping Pump Cargo component card: Reciprocating. Final residue stripping, low flow high head.
- System - Turbocharger: Axial / radial exhaust
Turbocharger component card: Axial / radial exhaust. MAN ABB or MHI, cylinder-load matched.
- System - UPS: Inverter + battery
UPS component card: Inverter + battery. 60 min runtime critical loads.
- System - UV Sterilizer: Quartz sleeve UV
UV Sterilizer component card: Quartz sleeve UV. 40 mJ/cm² dose target, annual lamp change.
- System - VDR / S-VDR: Voyage data recorder
VDR / S-VDR component card: Voyage data recorder. MSC.333(90).
- System - VHF Handheld: GMDSS approved
VHF Handheld component card: GMDSS approved. SOLAS IV/7.1.4.
- Tanger Med (MA) - Port Card
Tanger Med, MA - annual throughput ~130,000 TEU, max draft 18 m. Morocco Mediterranean.
- Tanjung Pelepas (MY) - Port Card
Tanjung Pelepas, MY - annual throughput ~130,000 TEU, max draft 17 m. Malaysia south.
- Tank Cleaning - Machine Cycle Time
Estimate tank-cleaning machine programme time for a single cargo tank using butterworth/washing-machine coverage rate - typical ISGOTT 6 figure.
- Tank Cleaning - Water Budget
Total wash-water volume for a tank-cleaning programme - machine flow × number of machines × programme duration, used for slop-tank / shore-reception planning.
- Tank Container - T-Code Selection
IMDG tank-container T-code selection based on cargo hazard - T1 to T75 portable-tank classification.
- Tank Stripping - MARPOL Rate Check
Check stripping-system capacity against MARPOL Annex I Reg. 18 - stripping must empty each tank to ≤ 300 litres of oil-like residue at nominal rated capacity.
- Tanker Double-Hull - Space Volume
Double-hull wing-ballast volume for a given tanker - MARPOL Annex I Reg. 19 design restriction.
- Tanker Op - Bilge holding tank
Bilge holding tank procedure card: Under 15 ppm OWS treatment.
- Tanker Op - Bunker delivery note
Bunker delivery note procedure card: MARPOL Annex VI Reg 18 - signed sample.
- Tanker Op - Bunkering - ammonia
Bunkering - ammonia procedure card: Toxic - full PPE + evacuation plan.
- Tanker Op - Bunkering - HFO
Bunkering - HFO procedure card: Fuel-oil transfer with MSDS + sampling.
- Tanker Op - Bunkering - LNG
Bunkering - LNG procedure card: SGMF guidelines - cool-down required.
- Tanker Op - Bunkering - methanol
Bunkering - methanol procedure card: No heat + no inerting, shore valve.
- Tanker Op - Calibration - portable gas meter
Calibration - portable gas meter procedure card: Daily zero + span.
- Tanker Op - Calibration - UTI tape
Calibration - UTI tape procedure card: Ullage / temperature / interface tape.
- Tanker Op - Cargo cooling - chemical
Cargo cooling - chemical procedure card: Reefer plant on cargo tank.
- Tanker Op - Cargo cooling - LNG
Cargo cooling - LNG procedure card: Spray condensation BOG to maintain tank T.
- Tanker Op - Cargo cooling - LPG
Cargo cooling - LPG procedure card: Compressor / reliquefaction at MARVS.
- Tanker Op - Cargo heating - asphalt
Cargo heating - asphalt procedure card: 140-180 °C, insulated tanks.
- Tanker Op - Cargo heating - HFO
Cargo heating - HFO procedure card: Steam coils to 60-65 °C.
- Tanker Op - Cargo heating - sulphur
Cargo heating - sulphur procedure card: Molten 135-140 °C, sulphur cake if cold.
- Tanker Op - Cargo heating - wax
Cargo heating - wax procedure card: Palm oil / coconut oil heated 45 °C.
- Tanker Op - Cargo sample - composite
Cargo sample - composite procedure card: Proportional combination.
- Tanker Op - Cargo sample - foot sample
Cargo sample - foot sample procedure card: Bottom 1 m of tank, before loading.
- Tanker Op - Cargo sample - middle sample
Cargo sample - middle sample procedure card: Mid-depth while loading.
- Tanker Op - Cargo sample - surface sample
Cargo sample - surface sample procedure card: Upper 20-50 cm.
- Tanker Op - Confined space entry
Confined space entry procedure card: Permit + watchkeeper + portable gas meter.
- Tanker Op - Cool-down
Cool-down procedure card: Membrane LNG tank cool-down from ambient to -162 °C.
- Tanker Op - Crude oil washing - bottom-wash
Crude oil washing - bottom-wash procedure card: Remaining tank volume.
- Tanker Op - Crude oil washing - cycle
Crude oil washing - cycle procedure card: 3-4 tanks per voyage per MARPOL.
- Tanker Op - Crude oil washing - top-wash
Crude oil washing - top-wash procedure card: Upper 3 m of tank.
- Tanker Op - Discharge plan
Discharge plan procedure card: Pump sequence + ballast + stripping.
- Tanker Op - Emergency shutdown - ESD-1
Emergency shutdown - ESD-1 procedure card: Cargo operation stopped, valves closed.
- Tanker Op - Emergency shutdown - ESD-2
Emergency shutdown - ESD-2 procedure card: Hose disconnect + tugs + escape.
- Tanker Op - ESD-testing
ESD-testing procedure card: Pre-voyage + post-maintenance.
- Tanker Op - Flame arrester check
Flame arrester check procedure card: Pre-voyage + quarterly inspection.
- Tanker Op - Gas-free certificate
Gas-free certificate procedure card: Port authority + marine chemist for entry.
- Tanker Op - Gas-up
Gas-up procedure card: Replace nitrogen inerting with methane vapour.
- Tanker Op - Hot work permit
Hot work permit procedure card: Shore-issued + gas-free tank + monitoring.
- Tanker Op - Inerting - IG plant start
Inerting - IG plant start procedure card: Cold fuel-oil combustion or flue gas.
- Tanker Op - Inerting - negative pressure check
Inerting - negative pressure check procedure card: Alarms + P/V valve integrity.
- Tanker Op - Inerting - positive pressure
Inerting - positive pressure procedure card: Prevents atmospheric ingress.
- Tanker Op - Inerting - topping up
Inerting - topping up procedure card: Maintains < 5 % O₂ during discharge.
- Tanker Op - Line-flushing
Line-flushing procedure card: Clear manifold lines before closing.
- Tanker Op - Loading plan - crude
Loading plan - crude procedure card: Cargo distribution + stress + drafts.
- Tanker Op - Loading plan - product
Loading plan - product procedure card: Multi-grade segregation + heating requirements.
- Tanker Op - Mooring - CBM
Mooring - CBM procedure card: Conventional buoy mooring.
- Tanker Op - Mooring - drift anchor
Mooring - drift anchor procedure card: Emergency anchoring in open water.
- Tanker Op - Mooring - MBM
Mooring - MBM procedure card: Multi-buoy mooring offshore.
- Tanker Op - Mooring - SPM
Mooring - SPM procedure card: Single point mooring tanker.
- Tanker Op - Mooring - STS
Mooring - STS procedure card: Ship-to-ship lightering.
- Tanker Op - OBQ survey
OBQ survey procedure card: On-Board Quantity before loading.
- Tanker Op - Purging - cargo tank
Purging - cargo tank procedure card: Remove residual hydrocarbons with IG.
- Tanker Op - Purging - pipeline
Purging - pipeline procedure card: Remove residual cargo with blown air or IG.
- Tanker Op - ROB survey
ROB survey procedure card: Remaining On Board before discharge.
- Tanker Op - Slops handling
Slops handling procedure card: Tanker-specific, stripping + settling + shore.
- Tanker Op - Sludge disposal
Sludge disposal procedure card: Shore reception per MARPOL I Reg 12.
- Tanker Op - Stripping - cargo tank
Stripping - cargo tank procedure card: Final emptying via stripping pump.
- Tanker Op - Tank cleaning - crude wash
Tank cleaning - crude wash procedure card: COW programme per MARPOL Reg 33.
- Tanker Op - Tank cleaning - dilution
Tank cleaning - dilution procedure card: Gas dilution to safe entry.
- Tanker Op - Tank cleaning - displacement
Tank cleaning - displacement procedure card: Stratified purge with inert gas.
- Tanker Op - Tank cleaning - gas-free
Tank cleaning - gas-free procedure card: Ventilation to ≤ 1 % LEL.
- Tanker Op - Tank cleaning - water wash
Tank cleaning - water wash procedure card: Butterworth machine programme.
- Tanker Op - Tank-freeing (hot work)
Tank-freeing (hot work) procedure card: Permit-to-work + gas-free test.
- Tanker Op - VECS connection
VECS connection procedure card: Vapor emission control system shore side.
- Tanker Op - Venting - fully-refrigerated
Venting - fully-refrigerated procedure card: P/V valves set per tank type.
- Tanker Op - Venting - pressurised (C-tank)
Venting - pressurised (C-tank) procedure card: Only via relief valves at MARVS.
- Tanker Op - Venting - semi-refrigerated
Venting - semi-refrigerated procedure card: Partial reliquefaction + vent.
- Tanker Op - VOC management plan
VOC management plan procedure card: MARPOL Annex VI Reg 15 - crude tanker.
- Tanker Op - Washings - oil record book
Washings - oil record book procedure card: Entry for each crude-wash + disposal.
- Taylor-Gertler Series - Residuary Resistance
Residuary-resistance coefficient from the Taylor-Gertler systematic series - mid-20th-century database still used for concept-stage powering.
- TC12 - West Coast India → Japan
TC12 benchmark route for MR: West Coast India → Japan. Rate × distance → TCE.
- TC14 - US Gulf → Continent
TC14 benchmark route for MR: US Gulf → Continent. Rate × distance → TCE.
- TC17 - AG → East Africa
TC17 benchmark route for MR: AG → East Africa. Rate × distance → TCE.
- TC2 - Rotterdam → New York
TC2 benchmark route for MR: Rotterdam → New York. Rate × distance → TCE.
- TC5 - AG → Japan
TC5 benchmark route for LR1: AG → Japan. Rate × distance → TCE.
- TC6 - Skikda → Lavera
TC6 benchmark route for MR: Skikda → Lavera. Rate × distance → TCE.
- TC7 - Singapore → East Australia
TC7 benchmark route for MR: Singapore → East Australia. Rate × distance → TCE.
- TCE vs T/C - Capesize Decision
Voyage TCE vs prevailing time-charter rate - the daily comparison that drives fix decisions for owners.
- TD1 - Ras Tanura → LOOP
TD1 benchmark route for VLCC: Ras Tanura → LOOP. Rate × distance → TCE.
- TD14 - SE Asia → East Coast Australia
TD14 benchmark route for Aframax: SE Asia → East Coast Australia. Rate × distance → TCE.
- TD15 - West Africa → China
TD15 benchmark route for VLCC: West Africa → China. Rate × distance → TCE.
- TD17 - Baltic → UKC
TD17 benchmark route for Aframax: Baltic → UKC. Rate × distance → TCE.
- TD19 - Ceyhan → Mediterranean
TD19 benchmark route for Aframax: Ceyhan → Mediterranean. Rate × distance → TCE.
- TD2 - Ras Tanura → Singapore
TD2 benchmark route for VLCC: Ras Tanura → Singapore. Rate × distance → TCE.
- TD20 - West Africa → Rotterdam
TD20 benchmark route for Suezmax: West Africa → Rotterdam. Rate × distance → TCE.
- TD3C - Ras Tanura → Ningbo
TD3C benchmark route for VLCC: Ras Tanura → Ningbo. Rate × distance → TCE.
- TD6 - Novorossiysk → Augusta
TD6 benchmark route for Suezmax: Novorossiysk → Augusta. Rate × distance → TCE.
- TD7 - North Sea → Continent
TD7 benchmark route for Aframax: North Sea → Continent. Rate × distance → TCE.
- TD8 - Kuwait → Singapore
TD8 benchmark route for Aframax: Kuwait → Singapore. Rate × distance → TCE.
- TD9 - Caribbean → USGC
TD9 benchmark route for Aframax: Caribbean → USGC. Rate × distance → TCE.
- Terminal - Algeciras - APM Terminals
Algeciras - APM Terminals, BE terminal-card: Transshipment. Max ship size ~18,000 TEU (or bulk equivalent), max draft 18.5 m.
- Terminal - Antwerp - Delwaide
Antwerp - Delwaide, BE terminal-card: Container lock-gated. Max ship size ~14,000 TEU (or bulk equivalent), max draft 14 m.
- Terminal - Antwerp - Deurganck
Antwerp - Deurganck, BE terminal-card: Tidal container. Max ship size ~24,000 TEU (or bulk equivalent), max draft 17 m.
- Terminal - Buenos Aires - Exolgan
Buenos Aires - Exolgan, AR terminal-card: Container. Max ship size ~9,000 TEU (or bulk equivalent), max draft 13 m.
- Terminal - Busan - New Port
Busan - New Port, KR terminal-card: Deep-water container. Max ship size ~24,000 TEU (or bulk equivalent), max draft 17 m.
- Terminal - Busan - North Port
Busan - North Port, KR terminal-card: Old port container. Max ship size ~10,000 TEU (or bulk equivalent), max draft 14 m.
- Terminal - Cai Mep - SSIT / CMIT
Cai Mep - SSIT / CMIT, VN terminal-card: Deep-water container. Max ship size ~18,000 TEU (or bulk equivalent), max draft 15.5 m.
- Terminal - Cape Lambert - Rio Tinto
Cape Lambert - Rio Tinto, AU terminal-card: Iron ore Rio Tinto. Max ship size ~0 TEU (or bulk equivalent), max draft 22 m.
- Terminal - Cape Town - Container
Cape Town - Container, ZA terminal-card: Container. Max ship size ~14,000 TEU (or bulk equivalent), max draft 14 m.
- Terminal - Cartagena - Societe Portuaire
Cartagena - Societe Portuaire, CO terminal-card: Container. Max ship size ~14,000 TEU (or bulk equivalent), max draft 15 m.
- Terminal - Charleston - Leatherman
Charleston - Leatherman, US terminal-card: New deep-water. Max ship size ~16,000 TEU (or bulk equivalent), max draft 15.5 m.
- Terminal - Chennai - CITPL
Chennai - CITPL, IN terminal-card: Container. Max ship size ~8,000 TEU (or bulk equivalent), max draft 13 m.
- Terminal - Chittagong - NCT / GCB
Chittagong - NCT / GCB, BD terminal-card: Container. Max ship size ~8,000 TEU (or bulk equivalent), max draft 10 m.
- Terminal - Colombo - CICT / SAGT / JCT
Colombo - CICT / SAGT / JCT, LK terminal-card: Transshipment. Max ship size ~20,000 TEU (or bulk equivalent), max draft 18 m.
- Terminal - Dalian - PDA Container
Dalian - PDA Container, CN terminal-card: Container. Max ship size ~18,000 TEU (or bulk equivalent), max draft 17 m.
- Terminal - Dampier - Rio Tinto
Dampier - Rio Tinto, AU terminal-card: Iron ore + salt. Max ship size ~0 TEU (or bulk equivalent), max draft 19 m.
- Terminal - Dubai - Jebel Ali T2/T3
Dubai - Jebel Ali T2/T3, AE terminal-card: Container + bulk. Max ship size ~24,000 TEU (or bulk equivalent), max draft 17 m.
- Terminal - Fuzhou - Jiangyin
Fuzhou - Jiangyin, CN terminal-card: Container. Max ship size ~14,000 TEU (or bulk equivalent), max draft 16 m.
- Terminal - Gladstone - RG Tanna
Gladstone - RG Tanna, AU terminal-card: Coal. Max ship size ~0 TEU (or bulk equivalent), max draft 19 m.
- Terminal - Guangzhou - Nansha P4
Guangzhou - Nansha P4, CN terminal-card: Container. Max ship size ~20,000 TEU (or bulk equivalent), max draft 17 m.
- Terminal - Hamburg - Eurogate CTH
Hamburg - Eurogate CTH, DE terminal-card: Container. Max ship size ~18,000 TEU (or bulk equivalent), max draft 15.3 m.
- Terminal - Hamburg - HHLA CTA Altenwerder
Hamburg - HHLA CTA Altenwerder, DE terminal-card: Automated container. Max ship size ~14,000 TEU (or bulk equivalent), max draft 14.5 m.
- Terminal - Ho Chi Minh - Cat Lai
Ho Chi Minh - Cat Lai, VN terminal-card: Container. Max ship size ~10,000 TEU (or bulk equivalent), max draft 12 m.
- Terminal - Hong Kong - Kwai Chung
Hong Kong - Kwai Chung, HK terminal-card: Container. Max ship size ~14,000 TEU (or bulk equivalent), max draft 15.5 m.
- Terminal - Houston - Bayport
Houston - Bayport, US terminal-card: Container + chem. Max ship size ~14,000 TEU (or bulk equivalent), max draft 13.7 m.
- Terminal - Jakarta - Koja / JICT
Jakarta - Koja / JICT, ID terminal-card: Container. Max ship size ~14,000 TEU (or bulk equivalent), max draft 14 m.
- Terminal - Kaohsiung - Port 7th
Kaohsiung - Port 7th, TW terminal-card: Container deep-water. Max ship size ~18,000 TEU (or bulk equivalent), max draft 18 m.
- Terminal - Kobe - Port Island
Kobe - Port Island, JP terminal-card: Container + auto. Max ship size ~14,000 TEU (or bulk equivalent), max draft 15 m.
- Terminal - Kochi - Vallarpadam
Kochi - Vallarpadam, IN terminal-card: Container. Max ship size ~9,000 TEU (or bulk equivalent), max draft 14.5 m.
- Terminal - Kolkata - Haldia
Kolkata - Haldia, IN terminal-card: Container + bulk. Max ship size ~5,000 TEU (or bulk equivalent), max draft 8 m.
- Terminal - Le Havre - Port 2000
Le Havre - Port 2000, FR terminal-card: Container deep-water. Max ship size ~18,000 TEU (or bulk equivalent), max draft 16 m.
- Terminal - Long Beach - Pier T
Long Beach - Pier T, US terminal-card: TTI terminal. Max ship size ~16,000 TEU (or bulk equivalent), max draft 16 m.
- Terminal - Los Angeles - Pier 300
Los Angeles - Pier 300, US terminal-card: APM terminal. Max ship size ~14,000 TEU (or bulk equivalent), max draft 16 m.
- Terminal - Los Angeles - Pier 400
Los Angeles - Pier 400, US terminal-card: Deep-water container. Max ship size ~18,000 TEU (or bulk equivalent), max draft 16.7 m.
- Terminal - Mundra - Adani
Mundra - Adani, IN terminal-card: Container + bulk. Max ship size ~15,000 TEU (or bulk equivalent), max draft 16 m.
- Terminal - Nagoya - Tobishima
Nagoya - Tobishima, JP terminal-card: Auto + container. Max ship size ~14,000 TEU (or bulk equivalent), max draft 15 m.
- Terminal - New York - Elizabeth Marine
New York - Elizabeth Marine, US terminal-card: Container. Max ship size ~14,000 TEU (or bulk equivalent), max draft 15.2 m.
- Terminal - Newcastle NSW - Kooragang
Newcastle NSW - Kooragang, AU terminal-card: Coal world's largest. Max ship size ~0 TEU (or bulk equivalent), max draft 15 m.
- Terminal - Nhava Sheva - JNPCT / BMCT
Nhava Sheva - JNPCT / BMCT, IN terminal-card: Container. Max ship size ~14,000 TEU (or bulk equivalent), max draft 15 m.
- Terminal - Ningbo - Beilun
Ningbo - Beilun, CN terminal-card: Container + bulk. Max ship size ~25,000 TEU (or bulk equivalent), max draft 22 m.
- Terminal - Ningbo - Daxie iron ore
Ningbo - Daxie iron ore, CN terminal-card: Iron ore Valemax-capable. Max ship size ~0 TEU (or bulk equivalent), max draft 25 m.
- Terminal - Piraeus - Pier II/III
Piraeus - Pier II/III, GR terminal-card: Cosco operated. Max ship size ~24,000 TEU (or bulk equivalent), max draft 18 m.
- Terminal - Port Hedland - BHP Jimblebar / Nelson Point
Port Hedland - BHP Jimblebar / Nelson Point, AU terminal-card: Iron ore BHP. Max ship size ~0 TEU (or bulk equivalent), max draft 20 m.
- Terminal - Port Hedland - Fortescue
Port Hedland - Fortescue, AU terminal-card: Iron ore (FMG). Max ship size ~0 TEU (or bulk equivalent), max draft 19 m.
- Terminal - Port Klang - Westport / Northport
Port Klang - Westport / Northport, MY terminal-card: Container. Max ship size ~18,000 TEU (or bulk equivalent), max draft 18 m.
- Terminal - Prince Rupert - Fairview
Prince Rupert - Fairview, CA terminal-card: Container + rail. Max ship size ~14,000 TEU (or bulk equivalent), max draft 18 m.
- Terminal - Qingdao - Qianwan
Qingdao - Qianwan, CN terminal-card: Container. Max ship size ~24,000 TEU (or bulk equivalent), max draft 19 m.
- Terminal - Rotterdam - ECT Euromax
Rotterdam - ECT Euromax, NL terminal-card: Container + ro-ro. Max ship size ~15,000 TEU (or bulk equivalent), max draft 18 m.
- Terminal - Rotterdam - Europort oil
Rotterdam - Europort oil, NL terminal-card: Oil / petroleum products. Max ship size ~0 TEU (or bulk equivalent), max draft 23 m.
- Terminal - Rotterdam - Maasvlakte II APM
Rotterdam - Maasvlakte II APM, NL terminal-card: Ultra-large containership berth. Max ship size ~18,000 TEU (or bulk equivalent), max draft 23 m.
- Terminal - Rotterdam - Maasvlakte II RWG
Rotterdam - Maasvlakte II RWG, NL terminal-card: Deep-water container. Max ship size ~18,000 TEU (or bulk equivalent), max draft 23 m.
- Terminal - Saldanha Bay - Iron ore
Saldanha Bay - Iron ore, ZA terminal-card: Iron ore export (Kumba). Max ship size ~0 TEU (or bulk equivalent), max draft 21 m.
- Terminal - Santos - BTP / DP World
Santos - BTP / DP World, BR terminal-card: Container. Max ship size ~14,000 TEU (or bulk equivalent), max draft 14.5 m.
- Terminal - Savannah - Garden City
Savannah - Garden City, US terminal-card: World's single largest container terminal. Max ship size ~18,000 TEU (or bulk equivalent), max draft 14.3 m.
- Terminal - Shanghai - Waigaoqiao
Shanghai - Waigaoqiao, CN terminal-card: Container in-river. Max ship size ~20,000 TEU (or bulk equivalent), max draft 13 m.
- Terminal - Shanghai - Yangshan Phase 1-4
Shanghai - Yangshan Phase 1-4, CN terminal-card: Deep-water container. Max ship size ~40,000 TEU (or bulk equivalent), max draft 17.5 m.
- Terminal - Singapore - Jurong Island
Singapore - Jurong Island, SG terminal-card: Petrochemical. Max ship size ~0 TEU (or bulk equivalent), max draft 21 m.
- Terminal - Singapore - Pasir Panjang
Singapore - Pasir Panjang, SG terminal-card: Container megaterminal. Max ship size ~24,000 TEU (or bulk equivalent), max draft 18 m.
- Terminal - Singapore - Tanjong Pagar
Singapore - Tanjong Pagar, SG terminal-card: Container - relocating to Tuas. Max ship size ~15,000 TEU (or bulk equivalent), max draft 15 m.
- Terminal - Singapore - Tuas Mega Port
Singapore - Tuas Mega Port, SG terminal-card: Under construction - world's largest. Max ship size ~65,000 TEU (or bulk equivalent), max draft 21 m.
- Terminal - Sohar - Container terminal
Sohar - Container terminal, OM terminal-card: Hub. Max ship size ~15,000 TEU (or bulk equivalent), max draft 18 m.
- Terminal - Tangier Med - TC3
Tangier Med - TC3, MA terminal-card: Transshipment hub. Max ship size ~24,000 TEU (or bulk equivalent), max draft 18 m.
- Terminal - Tanjung Pelepas - PTP
Tanjung Pelepas - PTP, MY terminal-card: Transshipment. Max ship size ~24,000 TEU (or bulk equivalent), max draft 19 m.
- Terminal - Tianjin - Xingang
Tianjin - Xingang, CN terminal-card: Container + bulk. Max ship size ~18,000 TEU (or bulk equivalent), max draft 19.5 m.
- Terminal - Vancouver - Deltaport
Vancouver - Deltaport, CA terminal-card: Container. Max ship size ~15,000 TEU (or bulk equivalent), max draft 18 m.
- Terminal - Vizhinjam - International
Vizhinjam - International, IN terminal-card: New deep-water transshipment. Max ship size ~20,000 TEU (or bulk equivalent), max draft 18 m.
- Terminal - Xiamen - Haicang
Xiamen - Haicang, CN terminal-card: Container. Max ship size ~14,000 TEU (or bulk equivalent), max draft 15 m.
- Terminal - Yokohama - Honmoku / Daikoku
Yokohama - Honmoku / Daikoku, JP terminal-card: Container. Max ship size ~14,000 TEU (or bulk equivalent), max draft 16 m.
- Thermal NOx (Zeldovich Order-of-Magnitude)
Rough thermal-NOx formation rate from the extended Zeldovich mechanism. Doubling every ~90 K above 1800 K.
- Thickness Measurement Intervals (IACS UR Z10)
UR Z10 survey schedule for oil tankers (Z10.1) and bulk carriers (Z10.2) by age and survey cycle.
- Three-Regime Cost Bridge
Combined annual compliance exposure across IMO (CII corrective plan), EU ETS (EUA surrender) and FuelEU Maritime (€2,400 / VLSFO-eq deficit).
- Thrust Deduction - Holtrop Approximation
Thrust-deduction fraction t from the Holtrop-Mennen resistance regression - used to convert propeller thrust to ship resistance.
- Tide - Interpolated Height
Interpolate tide height between given low/high using half-cosine.
- Tide - M2 Semi-Diurnal Amplitude
Dominant M2 tidal constituent amplitude - scale for predictions.
- Tide Height - Rule of Twelfths
Approximate tidal height at any hour between LW and HW using the rule of 1-2-3-3-2-1 twelfths of the range.
- Time Charter - MPA & Daily Hire
Monthly payment-advance (MPA) calculation for a time-charter given daily hire rate - the hire billing cycle.
- Time Charter Equivalent (TCE)
Voyage's daily earnings on a time-charter basis: (gross freight − voyage costs) / round-voyage days. The standard cross-trade comparator.
- Time-Charter Equivalent (TCE) - Voyage
Voyage time-charter equivalent: (freight − voyage costs) / total voyage days - the comparable benchmark for fixing decisions.
- Tokyo (JP) - Port Card
Tokyo, JP - annual throughput ~150,000 TEU, max draft 14 m. Tokyo Bay.
- Tonne-nautical mile to tonne-km (transport work)
Convert t·nm to t·km. Precise factor for marine emissions engineering; sourced from NIST / ISO / MEPC reference tables.
- Tonnes per Centimetre Immersion
Parallel-sinkage derivative of displacement vs immersion.
- Tons of Refrigeration to kW
Convert TR to kW using the internationally-agreed conversion factor - the bridge between metric and Imperial marine units.
- Topping-off Loading Rate
Reduced rate for the final 10 % / slack-ullage stage to allow tank-level alarms to respond and avoid overfill.
- Topside Icing - Weight & Moment Allowance
Topside icing allowance per IS Code 2008 Part B §6 for fishing vessels and vessels operating in winter seasonal zones - 30 kg/m² horizontal projected + 15 kg/m² vertical.
- Towing Kite - Pulling Force
Pulling force of a towing kite at cruise conditions - for SkySails-style auxiliary propulsion assessment.
- TPC from Waterplane Simpson's Rule
Tonnes per centimetre (TPC) at any draft from waterplane-area ordinates using Simpson's composite rule - the hydrostatic table entry for draft sensitivity.
- Transformer - Required kVA Rating
Required transformer kVA rating given 3-phase secondary load, voltage, power-factor and 20 % safety margin.
- Transformer - Temperature Derating
Dry-type transformer capacity derating for ambient above 40 °C per IEC 60076.
- Transformer Inrush - Ip Estimate
Transformer energising inrush current 6–12× rated - basis for relay pickup and breaker withstand.
- Trawler Fuel & CO₂
Bottom and pelagic trawlers. Outside CII scope; benchmarked per kg of landed catch - fuel-intensive fisheries (prawn, demersal) sit 3–5 kg CO₂/kg catch; pelagic fisheries 0.5–1.5 kg/kg.
- Trim - From Loading Centroid
Total trim given LCB vs LCG separation and MCT1cm - the daily loading-computer readout.
- Trim from Weight Shift
Change of trim in cm from a longitudinal weight shift.
- Trim Moment - MCT1cm Usage
Change of trim from a longitudinal weight shift - Δtrim (cm) = w·d / MCT1cm.
- Trim Optimisation
Fuel saving from running a ship at its CFD- or model-tested optimum trim.
- Trim Optimization - Fuel Savings
Fuel saving from trim optimization (dynamic trim software) - typically 1–3 % of fuel over a year when used consistently.
- Tuck Effect - Shallow-Water Suction
Tuck Effect - Shallow-Water Suction - concept summary and example calculation.
- Tug Bollard Pull - Port Selection
Required bollard pull for assisting a ship at a port - a function of DWT and wind area.
- Tug Bollard Pull Required
Estimate tug bollard pull needed for a given displacement based on Henn & Dunlop empirical rule used in major ports.
- Tug Line Force - Pivot Moment
Turning moment generated by a tug pulling at a given position - used to evaluate effectiveness of stern / bow tugs during manoeuvring.
- Turbocharger - Surge Margin
Turbocharger surge margin - the distance between operating point and surge line on the compressor map.
- Turning Circle - Advance & Tactical Diameter
Advance and tactical diameter of a ship's 35° turning circle given length and speed, with IMO A.751 pass criteria check.
- Turning Circle - Steady-State Radius
Steady-state turning-circle radius estimate using simplified Clarke-style formula - quick operational check for port entry.
- Turning Circle Advance & Tactical Diameter
IMO MSC.137(76) turning-circle criteria: Advance ≤ 4.5 L and Tactical Diameter ≤ 5 L at 35° rudder angle and service speed.
- Two-Body Celestial Fix
Estimated position-error (covariance-based) of a two-body celestial fix given sight crossing angle and per-sight random error.
- uk ets shipping
See live calculator aside for regulator URLs.
- Ullage - Thermal Expansion Correction
Correct observed ullage reading for cargo-to-tank temperature difference using ASTM D1250 volume-correction factor - the fundamental step in ship-to-shore ullage reconciliation.
- Ullage Table - Volume by Trim
Ullage-table volume lookup with trim correction - the core cargo-measurement step.
- Ullage to GOV via Capacity Table
Interpolate between two capacity-table entries to turn an ullage into a Gross Observed Volume.
- ULSFO (0.10 %S) - Core Properties
ULSFO (0.10 %S) reference fuel card - NCV, density, CO₂ factor for energy-budget and emission calculations.
- UN1001 - Acetylene, dissolved (Class 2.1)
UN1001 Acetylene, dissolved - IMDG Class 2.1. Shipping name, class and placard requirement at a glance.
- UN1002 - Air, compressed (Class 2.2)
UN1002 Air, compressed - IMDG Class 2.2. Shipping name, class and placard requirement at a glance.
- UN1005 - Ammonia, anhydrous (Class 2.3)
UN1005 Ammonia, anhydrous - IMDG Class 2.3. Shipping name, class and packing group at a glance.
- UN1006 - Argon, compressed (Class 2.2)
UN1006 Argon, compressed - IMDG Class 2.2. Shipping name, class and placard requirement at a glance.
- UN1008 - Boron trifluoride (Class 2.3)
UN1008 Boron trifluoride - IMDG Class 2.3. Shipping name, class and placard requirement at a glance.
- UN1010 - Butadienes, stabilised (Class 2.1)
UN1010 Butadienes, stabilised - IMDG Class 2.1. Shipping name, class and placard requirement at a glance.
- UN1011 - Butane (Class 2.1)
UN1011 Butane - IMDG Class 2.1. Shipping name, class and placard requirement at a glance.
- UN1012 - Butylene (Class 2.1)
UN1012 Butylene - IMDG Class 2.1. Shipping name, class and placard requirement at a glance.
- UN1013 - Carbon dioxide (Class 2.2)
UN1013 Carbon dioxide - IMDG Class 2.2. Shipping name, class and placard requirement at a glance.
- UN1016 - Carbon monoxide, compressed (Class 2.3)
UN1016 Carbon monoxide, compressed - IMDG Class 2.3. Shipping name, class and placard requirement at a glance.
- UN1017 - Chlorine (Class 2.3)
UN1017 Chlorine - IMDG Class 2.3. Shipping name, class and packing group at a glance.
- UN1018 - Chlorodifluoromethane (Class 2.2)
UN1018 Chlorodifluoromethane - IMDG Class 2.2. Shipping name, class and placard requirement at a glance.
- UN1020 - Chloropentafluoroethane (Class 2.2)
UN1020 Chloropentafluoroethane - IMDG Class 2.2. Shipping name, class and placard requirement at a glance.
- UN1021 - 1-Chloro-1,2,2,2-tetrafluoroethane (Class 2.2)
UN1021 1-Chloro-1,2,2,2-tetrafluoroethane - IMDG Class 2.2. Shipping name, class and placard requirement at a glance.
- UN1022 - Chlorotrifluoromethane (Class 2.2)
UN1022 Chlorotrifluoromethane - IMDG Class 2.2. Shipping name, class and placard requirement at a glance.
- UN1023 - Coal gas, compressed (Class 2.3)
UN1023 Coal gas, compressed - IMDG Class 2.3. Shipping name, class and placard requirement at a glance.
- UN1026 - Cyanogen (Class 2.3)
UN1026 Cyanogen - IMDG Class 2.3. Shipping name, class and placard requirement at a glance.
- UN1027 - Cyclopropane (Class 2.1)
UN1027 Cyclopropane - IMDG Class 2.1. Shipping name, class and placard requirement at a glance.
- UN1028 - Dichlorodifluoromethane (R-12) (Class 2.2)
UN1028 Dichlorodifluoromethane (R-12) - IMDG Class 2.2. Shipping name, class and placard requirement at a glance.
- UN1029 - Dichlorofluoromethane (Class 2.2)
UN1029 Dichlorofluoromethane - IMDG Class 2.2. Shipping name, class and placard requirement at a glance.
- UN1030 - 1,1-Difluoroethane (Class 2.1)
UN1030 1,1-Difluoroethane - IMDG Class 2.1. Shipping name, class and placard requirement at a glance.
- UN1032 - Dimethylamine, anhydrous (Class 2.1)
UN1032 Dimethylamine, anhydrous - IMDG Class 2.1. Shipping name, class and placard requirement at a glance.
- UN1033 - Dimethyl ether (Class 2.1)
UN1033 Dimethyl ether - IMDG Class 2.1. Shipping name, class and placard requirement at a glance.
- UN1036 - Ethylamine (Class 2.1)
UN1036 Ethylamine - IMDG Class 2.1. Shipping name, class and placard requirement at a glance.
- UN1037 - Ethyl chloride (Class 2.1)
UN1037 Ethyl chloride - IMDG Class 2.1. Shipping name, class and placard requirement at a glance.
- UN1038 - Ethylene, refrigerated (Class 2.1)
UN1038 Ethylene, refrigerated - IMDG Class 2.1. Shipping name, class and placard requirement at a glance.
- UN1039 - Ethyl methyl ether (Class 2.1)
UN1039 Ethyl methyl ether - IMDG Class 2.1. Shipping name, class and placard requirement at a glance.
- UN1040 - Ethylene oxide (Class 2.3)
UN1040 Ethylene oxide - IMDG Class 2.3. Shipping name, class and packing group at a glance.
- UN1041 - Ethylene oxide-carbon dioxide mixture (Class 2.1)
UN1041 Ethylene oxide-carbon dioxide mixture - IMDG Class 2.1. Shipping name, class and placard requirement at a glance.
- UN1043 - Fertilizer ammoniating solution (Class 2.2)
UN1043 Fertilizer ammoniating solution - IMDG Class 2.2. Shipping name, class and placard requirement at a glance.
- UN1044 - Fire extinguishers (Class 2.2)
UN1044 Fire extinguishers - IMDG Class 2.2. Shipping name, class and placard requirement at a glance.
- UN1045 - Fluorine, compressed (Class 2.3)
UN1045 Fluorine, compressed - IMDG Class 2.3. Shipping name, class and placard requirement at a glance.
- UN1046 - Helium, compressed (Class 2.2)
UN1046 Helium, compressed - IMDG Class 2.2. Shipping name, class and placard requirement at a glance.
- UN1048 - Hydrogen bromide, anhydrous (Class 2.3)
UN1048 Hydrogen bromide, anhydrous - IMDG Class 2.3. Shipping name, class and placard requirement at a glance.
- UN1049 - Hydrogen (Class 2.1)
UN1049 Hydrogen - IMDG Class 2.1. Shipping name, class and packing group at a glance.
- UN1050 - Hydrogen chloride, anhydrous (Class 2.3)
UN1050 Hydrogen chloride, anhydrous - IMDG Class 2.3. Shipping name, class and placard requirement at a glance.
- UN1051 - Hydrogen cyanide, stabilised (Class 6.1)
UN1051 Hydrogen cyanide, stabilised - IMDG Class 6.1. Shipping name, class and placard requirement at a glance.
- UN1052 - Hydrogen fluoride, anhydrous (Class 8)
UN1052 Hydrogen fluoride, anhydrous - IMDG Class 8. Shipping name, class and placard requirement at a glance.
- UN1053 - Hydrogen sulphide (Class 2.3)
UN1053 Hydrogen sulphide - IMDG Class 2.3. Shipping name, class and packing group at a glance.
- UN1055 - Isobutylene (Class 2.1)
UN1055 Isobutylene - IMDG Class 2.1. Shipping name, class and placard requirement at a glance.
- UN1056 - Krypton, compressed (Class 2.2)
UN1056 Krypton, compressed - IMDG Class 2.2. Shipping name, class and placard requirement at a glance.
- UN1057 - Lighters or lighter refills (Class 2.1)
UN1057 Lighters or lighter refills - IMDG Class 2.1. Shipping name, class and placard requirement at a glance.
- UN1058 - Liquefied gases, non-flammable (Class 2.2)
UN1058 Liquefied gases, non-flammable - IMDG Class 2.2. Shipping name, class and placard requirement at a glance.
- UN1060 - Methylacetylene / propadiene mix (Class 2.1)
UN1060 Methylacetylene / propadiene mix - IMDG Class 2.1. Shipping name, class and placard requirement at a glance.
- UN1061 - Methylamine, anhydrous (Class 2.1)
UN1061 Methylamine, anhydrous - IMDG Class 2.1. Shipping name, class and placard requirement at a glance.
- UN1062 - Methyl bromide (Class 2.3)
UN1062 Methyl bromide - IMDG Class 2.3. Shipping name, class and placard requirement at a glance.
- UN1063 - Methyl chloride (R-40) (Class 2.1)
UN1063 Methyl chloride (R-40) - IMDG Class 2.1. Shipping name, class and placard requirement at a glance.
- UN1064 - Methyl mercaptan (Class 2.3)
UN1064 Methyl mercaptan - IMDG Class 2.3. Shipping name, class and placard requirement at a glance.
- UN1065 - Neon, compressed (Class 2.2)
UN1065 Neon, compressed - IMDG Class 2.2. Shipping name, class and placard requirement at a glance.
- UN1066 - Nitrogen, compressed (Class 2.2)
UN1066 Nitrogen, compressed - IMDG Class 2.2. Shipping name, class and placard requirement at a glance.
- UN1067 - Dinitrogen tetroxide (Class 2.3)
UN1067 Dinitrogen tetroxide - IMDG Class 2.3. Shipping name, class and placard requirement at a glance.
- UN1069 - Nitrosyl chloride (Class 2.3)
UN1069 Nitrosyl chloride - IMDG Class 2.3. Shipping name, class and placard requirement at a glance.
- UN1070 - Nitrous oxide (Class 2.2)
UN1070 Nitrous oxide - IMDG Class 2.2. Shipping name, class and placard requirement at a glance.
- UN1071 - Oil gas, compressed (Class 2.3)
UN1071 Oil gas, compressed - IMDG Class 2.3. Shipping name, class and placard requirement at a glance.
- UN1072 - Oxygen, compressed (Class 2.2)
UN1072 Oxygen, compressed - IMDG Class 2.2. Shipping name, class and packing group at a glance.
- UN1073 - Oxygen, refrigerated liquid (Class 2.2)
UN1073 Oxygen, refrigerated liquid - IMDG Class 2.2. Shipping name, class and placard requirement at a glance.
- UN1075 - LPG (Class 2.1)
UN1075 LPG - IMDG Class 2.1. Shipping name, class and packing group at a glance.
- UN1076 - Phosgene (Class 2.3)
UN1076 Phosgene - IMDG Class 2.3. Shipping name, class and placard requirement at a glance.
- UN1077 - Propylene (Class 2.1)
UN1077 Propylene - IMDG Class 2.1. Shipping name, class and placard requirement at a glance.
- UN1078 - Refrigerant gas, n.o.s. (Class 2.2)
UN1078 Refrigerant gas, n.o.s. - IMDG Class 2.2. Shipping name, class and placard requirement at a glance.
- UN1079 - Sulphur dioxide (Class 2.3)
UN1079 Sulphur dioxide - IMDG Class 2.3. Shipping name, class and placard requirement at a glance.
- UN1080 - Sulphur hexafluoride (Class 2.2)
UN1080 Sulphur hexafluoride - IMDG Class 2.2. Shipping name, class and placard requirement at a glance.
- UN1081 - Tetrafluoroethylene, stabilised (Class 2.1)
UN1081 Tetrafluoroethylene, stabilised - IMDG Class 2.1. Shipping name, class and placard requirement at a glance.
- UN1082 - Trifluorochloroethylene, stabilised (Class 2.3)
UN1082 Trifluorochloroethylene, stabilised - IMDG Class 2.3. Shipping name, class and placard requirement at a glance.
- UN1083 - Trimethylamine, anhydrous (Class 2.1)
UN1083 Trimethylamine, anhydrous - IMDG Class 2.1. Shipping name, class and placard requirement at a glance.
- UN1084 - Vinyl chloride, stabilised (Class 2.1)
UN1084 Vinyl chloride, stabilised - IMDG Class 2.1. Shipping name, class and placard requirement at a glance.
- UN1085 - Vinyl bromide, stabilised (Class 2.1)
UN1085 Vinyl bromide, stabilised - IMDG Class 2.1. Shipping name, class and placard requirement at a glance.
- UN1086 - Vinyl fluoride, stabilised (Class 2.1)
UN1086 Vinyl fluoride, stabilised - IMDG Class 2.1. Shipping name, class and placard requirement at a glance.
- UN1087 - Vinyl methyl ether, stabilised (Class 2.1)
UN1087 Vinyl methyl ether, stabilised - IMDG Class 2.1. Shipping name, class and placard requirement at a glance.
- UN1088 - Acetal (Class 3)
UN1088 Acetal - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1089 - Acetaldehyde (Class 3)
UN1089 Acetaldehyde - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1090 - Acetone (Class 3)
UN1090 Acetone - IMDG Class 3. Shipping name, class and packing group at a glance.
- UN1091 - Acetone oils (Class 3)
UN1091 Acetone oils - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1092 - Acrolein, stabilised (Class 6.1)
UN1092 Acrolein, stabilised - IMDG Class 6.1. Shipping name, class and placard requirement at a glance.
- UN1093 - Acrylonitrile, stabilised (Class 3)
UN1093 Acrylonitrile, stabilised - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1098 - Allyl alcohol (Class 6.1)
UN1098 Allyl alcohol - IMDG Class 6.1. Shipping name, class and placard requirement at a glance.
- UN1099 - Allyl bromide (Class 3)
UN1099 Allyl bromide - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1100 - Allyl chloride (Class 3)
UN1100 Allyl chloride - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1104 - Amyl acetates (Class 3)
UN1104 Amyl acetates - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1105 - Pentanols (Class 3)
UN1105 Pentanols - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1106 - Amylamines (Class 3)
UN1106 Amylamines - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1107 - Amyl chlorides (Class 3)
UN1107 Amyl chlorides - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1108 - n-Amylene (Class 3)
UN1108 n-Amylene - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1109 - Amyl formates (Class 3)
UN1109 Amyl formates - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1110 - n-Amyl methyl ketone (Class 3)
UN1110 n-Amyl methyl ketone - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1111 - Amyl mercaptan (Class 3)
UN1111 Amyl mercaptan - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1112 - Amyl nitrate (Class 3)
UN1112 Amyl nitrate - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1113 - Amyl nitrite (Class 3)
UN1113 Amyl nitrite - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1114 - Benzene (Class 3)
UN1114 Benzene - IMDG Class 3. Shipping name, class and packing group at a glance.
- UN1123 - Butyl acetates (Class 3)
UN1123 Butyl acetates - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1125 - n-Butylamine (Class 3)
UN1125 n-Butylamine - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1126 - 1-Bromobutane (Class 3)
UN1126 1-Bromobutane - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1127 - Chlorobutanes (Class 3)
UN1127 Chlorobutanes - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1128 - n-Butyl formate (Class 3)
UN1128 n-Butyl formate - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1129 - Butyraldehyde (Class 3)
UN1129 Butyraldehyde - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1130 - Camphor oil (Class 3)
UN1130 Camphor oil - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1131 - Carbon disulphide (Class 3)
UN1131 Carbon disulphide - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1133 - Adhesives containing flammable liquid (Class 3)
UN1133 Adhesives containing flammable liquid - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1134 - Chlorobenzene (Class 3)
UN1134 Chlorobenzene - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1135 - Ethylene chlorohydrin (Class 6.1)
UN1135 Ethylene chlorohydrin - IMDG Class 6.1. Shipping name, class and placard requirement at a glance.
- UN1136 - Coal tar distillates, flammable (Class 3)
UN1136 Coal tar distillates, flammable - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1139 - Coating solution (Class 3)
UN1139 Coating solution - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1143 - Crotonaldehyde (Class 6.1)
UN1143 Crotonaldehyde - IMDG Class 6.1. Shipping name, class and placard requirement at a glance.
- UN1144 - Crotonylene (Class 3)
UN1144 Crotonylene - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1145 - Cyclohexane (Class 3)
UN1145 Cyclohexane - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1146 - Cyclopentane (Class 3)
UN1146 Cyclopentane - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1147 - Decahydronaphthalene (Class 3)
UN1147 Decahydronaphthalene - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1148 - Diacetone alcohol (Class 3)
UN1148 Diacetone alcohol - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1149 - Dibutyl ethers (Class 3)
UN1149 Dibutyl ethers - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1150 - 1,2-Dichloroethylene (Class 3)
UN1150 1,2-Dichloroethylene - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1152 - Dichloropentanes (Class 3)
UN1152 Dichloropentanes - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1153 - Ethylene glycol diethyl ether (Class 3)
UN1153 Ethylene glycol diethyl ether - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1154 - Diethylamine (Class 3)
UN1154 Diethylamine - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1155 - Diethyl ether (Class 3)
UN1155 Diethyl ether - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1156 - Diethyl ketone (Class 3)
UN1156 Diethyl ketone - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1157 - Diisobutyl ketone (Class 3)
UN1157 Diisobutyl ketone - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1158 - Diisopropylamine (Class 3)
UN1158 Diisopropylamine - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1159 - Diisopropyl ether (Class 3)
UN1159 Diisopropyl ether - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1160 - Dimethylamine solution (Class 3)
UN1160 Dimethylamine solution - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1161 - Dimethyl carbonate (Class 3)
UN1161 Dimethyl carbonate - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1162 - Dimethyldichlorosilane (Class 3)
UN1162 Dimethyldichlorosilane - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1163 - Dimethylhydrazine, unsymmetrical (Class 6.1)
UN1163 Dimethylhydrazine, unsymmetrical - IMDG Class 6.1. Shipping name, class and placard requirement at a glance.
- UN1164 - Dimethyl sulphide (Class 3)
UN1164 Dimethyl sulphide - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1165 - Dioxane (Class 3)
UN1165 Dioxane - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1166 - Dioxolane (Class 3)
UN1166 Dioxolane - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1167 - Divinyl ether, stabilised (Class 3)
UN1167 Divinyl ether, stabilised - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1169 - Extracts, aromatic, liquid (Class 3)
UN1169 Extracts, aromatic, liquid - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1170 - Ethanol (Class 3)
UN1170 Ethanol - IMDG Class 3. Shipping name, class and packing group at a glance.
- UN1171 - Ethylene glycol monoethyl ether (Class 3)
UN1171 Ethylene glycol monoethyl ether - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1172 - Ethylene glycol monoethyl ether acetate (Class 3)
UN1172 Ethylene glycol monoethyl ether acetate - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1173 - Ethyl acetate (Class 3)
UN1173 Ethyl acetate - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1175 - Ethylbenzene (Class 3)
UN1175 Ethylbenzene - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1176 - Ethyl borate (Class 3)
UN1176 Ethyl borate - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1177 - Ethylbutyl acetate (Class 3)
UN1177 Ethylbutyl acetate - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1178 - 2-Ethylbutyraldehyde (Class 3)
UN1178 2-Ethylbutyraldehyde - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1179 - Ethyl butyl ether (Class 3)
UN1179 Ethyl butyl ether - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1180 - Ethyl butyrate (Class 3)
UN1180 Ethyl butyrate - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1181 - Ethyl chloroacetate (Class 6.1)
UN1181 Ethyl chloroacetate - IMDG Class 6.1. Shipping name, class and placard requirement at a glance.
- UN1182 - Ethyl chloroformate (Class 6.1)
UN1182 Ethyl chloroformate - IMDG Class 6.1. Shipping name, class and placard requirement at a glance.
- UN1183 - Ethyldichlorosilane (Class 4.3)
UN1183 Ethyldichlorosilane - IMDG Class 4.3. Shipping name, class and placard requirement at a glance.
- UN1184 - Ethylene dichloride (1,2-DCE) (Class 3)
UN1184 Ethylene dichloride (1,2-DCE) - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1185 - Ethyleneimine, stabilised (Class 6.1)
UN1185 Ethyleneimine, stabilised - IMDG Class 6.1. Shipping name, class and placard requirement at a glance.
- UN1188 - Ethylene glycol monomethyl ether (Class 3)
UN1188 Ethylene glycol monomethyl ether - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1189 - Ethylene glycol monomethyl ether acetate (Class 3)
UN1189 Ethylene glycol monomethyl ether acetate - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1191 - Octyl aldehydes (Class 3)
UN1191 Octyl aldehydes - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1192 - Ethyl lactate (Class 3)
UN1192 Ethyl lactate - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1193 - Ethyl methyl ketone (MEK) (Class 3)
UN1193 Ethyl methyl ketone (MEK) - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1194 - Ethyl nitrite solution (Class 3)
UN1194 Ethyl nitrite solution - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1195 - Ethyl propionate (Class 3)
UN1195 Ethyl propionate - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1196 - Ethyltrichlorosilane (Class 3)
UN1196 Ethyltrichlorosilane - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1197 - Extracts, flavouring, liquid (Class 3)
UN1197 Extracts, flavouring, liquid - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1198 - Formaldehyde solutions, flammable (Class 3)
UN1198 Formaldehyde solutions, flammable - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1199 - Furaldehydes (Class 6.1)
UN1199 Furaldehydes - IMDG Class 6.1. Shipping name, class and placard requirement at a glance.
- UN1201 - Fusel oil (Class 3)
UN1201 Fusel oil - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1202 - Diesel fuel (UN2760) (Class 3)
UN1202 Diesel fuel (UN2760) - IMDG Class 3. Shipping name, class and packing group at a glance.
- UN1203 - Gasoline (Class 3)
UN1203 Gasoline - IMDG Class 3. Shipping name, class and packing group at a glance.
- UN1204 - Nitroglycerin, ethanol solution (Class 3)
UN1204 Nitroglycerin, ethanol solution - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1206 - Heptanes (Class 3)
UN1206 Heptanes - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1207 - Hexaldehyde (Class 3)
UN1207 Hexaldehyde - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1208 - Hexanes (Class 3)
UN1208 Hexanes - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1210 - Printing ink, flammable (Class 3)
UN1210 Printing ink, flammable - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1212 - Isobutanol (Class 3)
UN1212 Isobutanol - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1213 - Isobutyl acetate (Class 3)
UN1213 Isobutyl acetate - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1214 - Isobutylamine (Class 3)
UN1214 Isobutylamine - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1216 - Isooctenes (Class 3)
UN1216 Isooctenes - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1218 - Isoprene, stabilised (Class 3)
UN1218 Isoprene, stabilised - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1219 - Isopropanol (Class 3)
UN1219 Isopropanol - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1220 - Isopropyl acetate (Class 3)
UN1220 Isopropyl acetate - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1221 - Isopropylamine (Class 3)
UN1221 Isopropylamine - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1222 - Isopropyl nitrate (Class 3)
UN1222 Isopropyl nitrate - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1223 - Kerosene (Class 3)
UN1223 Kerosene - IMDG Class 3. Shipping name, class and packing group at a glance.
- UN1224 - Ketones, liquid, n.o.s. (Class 3)
UN1224 Ketones, liquid, n.o.s. - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1228 - Mercaptan mixture, liquid, flammable (Class 3)
UN1228 Mercaptan mixture, liquid, flammable - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1229 - Mesityl oxide (Class 3)
UN1229 Mesityl oxide - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1230 - Methanol (Class 3)
UN1230 Methanol - IMDG Class 3. Shipping name, class and packing group at a glance.
- UN1231 - Methyl acetate (Class 3)
UN1231 Methyl acetate - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1233 - Methylamyl acetate (Class 3)
UN1233 Methylamyl acetate - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1234 - Methylal (Class 3)
UN1234 Methylal - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1235 - Methylamine, aqueous solution (Class 3)
UN1235 Methylamine, aqueous solution - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1237 - Methyl butyrate (Class 3)
UN1237 Methyl butyrate - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1238 - Methyl chloroformate (Class 6.1)
UN1238 Methyl chloroformate - IMDG Class 6.1. Shipping name, class and placard requirement at a glance.
- UN1239 - Methyl chloromethyl ether (Class 6.1)
UN1239 Methyl chloromethyl ether - IMDG Class 6.1. Shipping name, class and placard requirement at a glance.
- UN1242 - Methyldichlorosilane (Class 4.3)
UN1242 Methyldichlorosilane - IMDG Class 4.3. Shipping name, class and placard requirement at a glance.
- UN1243 - Methyl formate (Class 3)
UN1243 Methyl formate - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1244 - Methylhydrazine (Class 6.1)
UN1244 Methylhydrazine - IMDG Class 6.1. Shipping name, class and placard requirement at a glance.
- UN1245 - Methyl isobutyl ketone (MIBK) (Class 3)
UN1245 Methyl isobutyl ketone (MIBK) - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1246 - Methyl isopropenyl ketone, stabilised (Class 3)
UN1246 Methyl isopropenyl ketone, stabilised - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1247 - Methyl methacrylate monomer, stabilised (Class 3)
UN1247 Methyl methacrylate monomer, stabilised - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1248 - Methyl propionate (Class 3)
UN1248 Methyl propionate - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1249 - Methyl propyl ketone (Class 3)
UN1249 Methyl propyl ketone - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1250 - Methyltrichlorosilane (Class 3)
UN1250 Methyltrichlorosilane - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1251 - Methyl vinyl ketone, stabilised (Class 6.1)
UN1251 Methyl vinyl ketone, stabilised - IMDG Class 6.1. Shipping name, class and placard requirement at a glance.
- UN1259 - Nickel carbonyl (Class 6.1)
UN1259 Nickel carbonyl - IMDG Class 6.1. Shipping name, class and placard requirement at a glance.
- UN1261 - Nitromethane (Class 3)
UN1261 Nitromethane - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1262 - Octanes (Class 3)
UN1262 Octanes - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1263 - Paint (Class 3)
UN1263 Paint - IMDG Class 3. Shipping name, class and packing group at a glance.
- UN1264 - Paraldehyde (Class 3)
UN1264 Paraldehyde - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1265 - Pentanes (Class 3)
UN1265 Pentanes - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1266 - Perfumery products, flammable (Class 3)
UN1266 Perfumery products, flammable - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1267 - Petroleum crude oil (Class 3)
UN1267 Petroleum crude oil - IMDG Class 3. Shipping name, class and packing group at a glance.
- UN1268 - Petroleum distillates, nos (Class 3)
UN1268 Petroleum distillates, nos - IMDG Class 3. Shipping name, class and packing group at a glance.
- UN1270 - Petroleum oil (Class 3)
UN1270 Petroleum oil - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1271 - Petroleum spirit (Class 3)
UN1271 Petroleum spirit - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1272 - Pine oil (Class 3)
UN1272 Pine oil - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1274 - n-Propanol (Class 3)
UN1274 n-Propanol - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1275 - Propionaldehyde (Class 3)
UN1275 Propionaldehyde - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1276 - n-Propyl acetate (Class 3)
UN1276 n-Propyl acetate - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1277 - Propylamine (Class 3)
UN1277 Propylamine - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1278 - 1-Chloropropane (Class 3)
UN1278 1-Chloropropane - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1279 - 1,2-Dichloropropane (Class 3)
UN1279 1,2-Dichloropropane - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1280 - Propylene oxide (Class 3)
UN1280 Propylene oxide - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1281 - Propyl formates (Class 3)
UN1281 Propyl formates - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1282 - Pyridine (Class 3)
UN1282 Pyridine - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1286 - Rosin oil (Class 3)
UN1286 Rosin oil - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1287 - Rubber solution (Class 3)
UN1287 Rubber solution - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1288 - Shale oil (Class 3)
UN1288 Shale oil - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1289 - Sodium methylate solution (Class 3)
UN1289 Sodium methylate solution - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1292 - Tetraethyl silicate (Class 3)
UN1292 Tetraethyl silicate - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1293 - Tinctures, medicinal (Class 3)
UN1293 Tinctures, medicinal - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1294 - Toluene (Class 3)
UN1294 Toluene - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1295 - Trichlorosilane (Class 4.3)
UN1295 Trichlorosilane - IMDG Class 4.3. Shipping name, class and placard requirement at a glance.
- UN1296 - Triethylamine (Class 3)
UN1296 Triethylamine - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1297 - Trimethylamine, aqueous solution (Class 3)
UN1297 Trimethylamine, aqueous solution - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1298 - Trimethylchlorosilane (Class 3)
UN1298 Trimethylchlorosilane - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1299 - Turpentine (Class 3)
UN1299 Turpentine - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1300 - Turpentine substitute (Class 3)
UN1300 Turpentine substitute - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1301 - Vinyl acetate, stabilised (Class 3)
UN1301 Vinyl acetate, stabilised - IMDG Class 3. Shipping name, class and placard requirement at a glance.
- UN1361 - Carbon (animal, vegetable origin) (Class 4.2)
UN1361 Carbon (animal, vegetable origin) - IMDG Class 4.2. Shipping name, class and packing group at a glance.
- UN1381 - Phosphorus, yellow (Class 4.2)
UN1381 Phosphorus, yellow - IMDG Class 4.2. Shipping name, class and packing group at a glance.
- UN1428 - Sodium metal (Class 4.3)
UN1428 Sodium metal - IMDG Class 4.3. Shipping name, class and packing group at a glance.
- UN1463 - Chromium trioxide, anhydrous (Class 5.1)
UN1463 Chromium trioxide, anhydrous - IMDG Class 5.1. Shipping name, class and packing group at a glance.
- UN1486 - Potassium nitrate (Class 5.1)
UN1486 Potassium nitrate - IMDG Class 5.1. Shipping name, class and packing group at a glance.
- UN1498 - Sodium nitrate (Class 5.1)
UN1498 Sodium nitrate - IMDG Class 5.1. Shipping name, class and packing group at a glance.
- UN1579 - 4-Chloro-o-toluidine hydrochloride (Class 6.1)
UN1579 4-Chloro-o-toluidine hydrochloride - IMDG Class 6.1. Shipping name, class and packing group at a glance.
- UN1654 - Nicotine (Class 6.1)
UN1654 Nicotine - IMDG Class 6.1. Shipping name, class and packing group at a glance.
- UN1710 - Trichloroethylene (Class 6.1)
UN1710 Trichloroethylene - IMDG Class 6.1. Shipping name, class and packing group at a glance.
- UN1760 - Corrosive liquid, nos (Class 8)
UN1760 Corrosive liquid, nos - IMDG Class 8. Shipping name, class and packing group at a glance.
- UN1788 - Hydrobromic acid (Class 8)
UN1788 Hydrobromic acid - IMDG Class 8. Shipping name, class and packing group at a glance.
- UN1789 - Hydrochloric acid (Class 8)
UN1789 Hydrochloric acid - IMDG Class 8. Shipping name, class and packing group at a glance.
- UN1791 - Hypochlorite solution (Class 8)
UN1791 Hypochlorite solution - IMDG Class 8. Shipping name, class and packing group at a glance.
- UN1805 - Phosphoric acid, solution (Class 8)
UN1805 Phosphoric acid, solution - IMDG Class 8. Shipping name, class and packing group at a glance.
- UN1823 - Sodium hydroxide, solid (Class 8)
UN1823 Sodium hydroxide, solid - IMDG Class 8. Shipping name, class and packing group at a glance.
- UN1824 - Sodium hydroxide solution (Class 8)
UN1824 Sodium hydroxide solution - IMDG Class 8. Shipping name, class and packing group at a glance.
- UN1830 - Sulphuric acid, > 51% (Class 8)
UN1830 Sulphuric acid, > 51% - IMDG Class 8. Shipping name, class and packing group at a glance.
- UN1888 - Chloroform (Class 6.1)
UN1888 Chloroform - IMDG Class 6.1. Shipping name, class and packing group at a glance.
- UN1950 - Aerosols (Class 2.1)
UN1950 Aerosols - IMDG Class 2.1. Shipping name, class and packing group at a glance.
- UN1951 - Argon, refrigerated liquid (Class 2.2)
UN1951 Argon, refrigerated liquid - IMDG Class 2.2. Shipping name, class and packing group at a glance.
- UN1963 - Helium, refrigerated liquid (Class 2.2)
UN1963 Helium, refrigerated liquid - IMDG Class 2.2. Shipping name, class and packing group at a glance.
- UN1965 - Hydrocarbon gas mix liquefied, nos (Class 2.1)
UN1965 Hydrocarbon gas mix liquefied, nos - IMDG Class 2.1. Shipping name, class and packing group at a glance.
- UN1972 - Methane, refrigerated liquid (LNG) (Class 2.1)
UN1972 Methane, refrigerated liquid (LNG) - IMDG Class 2.1. Shipping name, class and packing group at a glance.
- UN1977 - Nitrogen, refrigerated liquid (Class 2.2)
UN1977 Nitrogen, refrigerated liquid - IMDG Class 2.2. Shipping name, class and packing group at a glance.
- UN1978 - Propane (Class 2.1)
UN1978 Propane - IMDG Class 2.1. Shipping name, class and packing group at a glance.
- UN1990 - Benzaldehyde (Class 9)
UN1990 Benzaldehyde - IMDG Class 9. Shipping name, class and packing group at a glance.
- UN2014 - Hydrogen peroxide, 20-60% (Class 5.1)
UN2014 Hydrogen peroxide, 20-60% - IMDG Class 5.1. Shipping name, class and packing group at a glance.
- UN2015 - Hydrogen peroxide, >60% (Class 5.1)
UN2015 Hydrogen peroxide, >60% - IMDG Class 5.1. Shipping name, class and packing group at a glance.
- UN2055 - Styrene monomer (Class 3)
UN2055 Styrene monomer - IMDG Class 3. Shipping name, class and packing group at a glance.
- UN2187 - Carbon dioxide, refrigerated liquid (Class 2.2)
UN2187 Carbon dioxide, refrigerated liquid - IMDG Class 2.2. Shipping name, class and packing group at a glance.
- UN2209 - Formaldehyde solutions, 37-50 % (Class 8)
UN2209 Formaldehyde solutions, 37-50 % - IMDG Class 8. Shipping name, class and packing group at a glance.
- UN2249 - Dichlorodimethyl ether (Class 6.1)
UN2249 Dichlorodimethyl ether - IMDG Class 6.1. Shipping name, class and packing group at a glance.
- UN2304 - Naphthalene, molten (Class 4.1)
UN2304 Naphthalene, molten - IMDG Class 4.1. Shipping name, class and packing group at a glance.
- UN2362 - 1,1-Dichloroethane (Class 3)
UN2362 1,1-Dichloroethane - IMDG Class 3. Shipping name, class and packing group at a glance.
- UN2448 - Sulphur, molten (Class 4.1)
UN2448 Sulphur, molten - IMDG Class 4.1. Shipping name, class and packing group at a glance.
- UN2481 - Ethyl isocyanate (Class 6.1)
UN2481 Ethyl isocyanate - IMDG Class 6.1. Shipping name, class and packing group at a glance.
- UN2489 - 4,4'-Methylene bis(phenyl isocyanate) (MDI) (Class 9)
UN2489 4,4'-Methylene bis(phenyl isocyanate) (MDI) - IMDG Class 9. Shipping name, class and packing group at a glance.
- UN2643 - Methyl bromoacetate (Class 6.1)
UN2643 Methyl bromoacetate - IMDG Class 6.1. Shipping name, class and packing group at a glance.
- UN2672 - Ammonia solutions (10-35%) (Class 8)
UN2672 Ammonia solutions (10-35%) - IMDG Class 8. Shipping name, class and packing group at a glance.
- UN2796 - Sulphuric acid battery fluid (Class 8)
UN2796 Sulphuric acid battery fluid - IMDG Class 8. Shipping name, class and packing group at a glance.
- UN2814 - Infectious substance, affecting humans (Class 6.2)
UN2814 Infectious substance, affecting humans - IMDG Class 6.2. Shipping name, class and packing group at a glance.
- UN2900 - Infectious substance, affecting animals (Class 6.2)
UN2900 Infectious substance, affecting animals - IMDG Class 6.2. Shipping name, class and packing group at a glance.
- UN2912 - Radioactive material, LSA-I (Class 7)
UN2912 Radioactive material, LSA-I - IMDG Class 7. Shipping name, class and packing group at a glance.
- UN2977 - Radioactive material, uranium hexafluoride (Class 7)
UN2977 Radioactive material, uranium hexafluoride - IMDG Class 7. Shipping name, class and packing group at a glance.
- UN3077 - Environmentally hazardous substance, solid (Class 9)
UN3077 Environmentally hazardous substance, solid - IMDG Class 9. Shipping name, class and packing group at a glance.
- UN3082 - Environmentally hazardous substance, liquid (Class 9)
UN3082 Environmentally hazardous substance, liquid - IMDG Class 9. Shipping name, class and packing group at a glance.
- UN3090 - Lithium metal batteries (Class 9)
UN3090 Lithium metal batteries - IMDG Class 9. Shipping name, class and packing group at a glance.
- UN3091 - Lithium metal batteries in equipment (Class 9)
UN3091 Lithium metal batteries in equipment - IMDG Class 9. Shipping name, class and packing group at a glance.
- UN3166 - Vehicles (flammable gas or liquid) (Class 9)
UN3166 Vehicles (flammable gas or liquid) - IMDG Class 9. Shipping name, class and packing group at a glance.
- UN3175 - Solids containing flammable liquid, nos (Class 4.1)
UN3175 Solids containing flammable liquid, nos - IMDG Class 4.1. Shipping name, class and packing group at a glance.
- UN3257 - Elevated temperature liquid, nos (Class 9)
UN3257 Elevated temperature liquid, nos - IMDG Class 9. Shipping name, class and packing group at a glance.
- UN3295 - Hydrocarbons liquid, nos (Class 3)
UN3295 Hydrocarbons liquid, nos - IMDG Class 3. Shipping name, class and packing group at a glance.
- UN3375 - Ammonium nitrate emulsion (Class 5.1)
UN3375 Ammonium nitrate emulsion - IMDG Class 5.1. Shipping name, class and packing group at a glance.
- UN3480 - Lithium-ion batteries (Class 9)
UN3480 Lithium-ion batteries - IMDG Class 9. Shipping name, class and packing group at a glance.
- UN3481 - Lithium-ion batteries in equipment (Class 9)
UN3481 Lithium-ion batteries in equipment - IMDG Class 9. Shipping name, class and packing group at a glance.
- UN3498 - Iodine monobromide (Class 8)
UN3498 Iodine monobromide - IMDG Class 8. Shipping name, class and packing group at a glance.
- Under-Keel Clearance (UKC)
Net UKC = charted depth + tide − draft − squat − wave allowance − safety margin. The fundamental pilot-card number.
- UPS - Battery Runtime
UPS battery runtime from battery Ah, system efficiency, and load - standard redundancy check for critical-load continuity.
- US Gallons to Litres
Convert USgal to l using the internationally-agreed conversion factor - the bridge between metric and Imperial marine units.
- US gpm to m³/h
Convert USgpm to m³/h using the internationally-agreed conversion factor - the bridge between metric and Imperial marine units.
- USCG 46 CFR 162.060 - USCG BWMS approval
USCG 46 CFR 162.060 test method - USCG BWMS approval. Common lab test used for marine water quality assessment.
- USP <85> - Bacterial endotoxin test
USP <85> test method - Bacterial endotoxin test. Common lab test used for marine water quality assessment.
- UTM - Thickness Coverage by Age
UTM scope expected by class per IACS UR Z13 age-based plan.
- UV Dose for BWMS
UV dose (mJ/cm²) delivered by a BWMS reactor at a given flow and lamp power, with UV transmittance correction.
- UV Dose for Potable Water
Required UV-C dose 40 mJ/cm² at 254 nm per WHO drinking-water guideline for log-4 viral inactivation.
- Valencia (ES) - Port Card
Valencia, ES - annual throughput ~140,000 TEU, max draft 15 m. West Med.
- Vancouver (CA) - Port Card
Vancouver, CA - annual throughput ~120,000 TEU, max draft 18 m. BC Pacific.
- Vapor Return - Rate vs Load Rate
Vapor-return gas volume during loading - matches the liquid load rate corrected for tank ullage temperature, used to size VECS manifold.
- VDR - Recording Duration
VDR data-recording duration check - minimum 12 h full data + 48 h tamper-evident fixed capsule per MSC.333(90).
- Vessel - Fair Market Value (FMV)
Vessel FMV from Clarksons / VesselsValue style - DWT × age-scaled benchmark price.
- Vessel Experience Factor (VEF)
Average ratio of ship-measured quantity to B/L quantity across the last 25 voyages - the correction applied to future loaded quantities during custody transfer.
- Vessel Lay-Up - Daily Cost
Cold / warm lay-up daily OPEX benchmark - the floor for keeping vessel ready for reactivation.
- VFD - Motor Drive Rating
Variable-Frequency Drive rating for a given motor - drive current rated ≥ motor full-load current × 1.1 with overload headroom.
- VFD Energy Saving - Cube-Law Pump
Energy saved when a centrifugal pump or fan is speed-controlled instead of throttled. Affinity P ∝ N³ makes small speed reductions huge energy wins.
- VFD Harmonic TDD Screen (IEEE 519)
Voltage and current THD limits for a non-linear load at its point of common coupling, per IEEE 519 table 1 / table 2.
- Viscosity Index (ASTM D2270)
Single-number rating of how much viscosity changes with temperature; high VI oils (≥ 100) stay fluid at low temperature and film-protective at high temperature.
- VLSFO (0.50 %S) - Core Properties
VLSFO (0.50 %S) reference fuel card - NCV, density, CO₂ factor for energy-budget and emission calculations.
- VOC from Crude Tanker Loading
Vapour Emission Control Systems (VECS) reduce $F_\text{VOC}$ by 90 %+.
- VOC Management - MARPOL VI Reg 15 Check
VOC management plan compliance for crude-oil tankers per MARPOL Annex VI Reg. 15 - applies to tankers ≥ 8,000 dwt from 2010.
- Voltage Drop - Cable Run
Cable voltage drop (three-phase) over a given run length using resistance per km and load current - the basic sizing check per IEC 60092-352.
- Voltage-Restrained Overcurrent (ANSI 51V)
Generator back-up overload relay whose pickup scales with measured bus voltage. Pickup_applied = Pickup_base · (V_actual / V_rated)^n.
- Volvo Penta D13-800 - MCR per Cylinder
Volvo Penta D13-800 engine card: 597 kW per cylinder at 2300 rpm, SFOC 205 g/kWh.
- Volvo Penta D16 IPS-900 - MCR per Cylinder
Volvo Penta D16 IPS-900 engine card: 671 kW per cylinder at 2300 rpm, SFOC 202 g/kWh.
- Volvo Penta D16 MH/MG - MCR per Cylinder
Volvo Penta D16 MH/MG engine card: 600 kW per cylinder at 1800 rpm, SFOC 200 g/kWh.
- Voyage Fuel & CO₂
Single-voyage fuel and CO₂ from engine-load × hours × SFOC × Cf.
- Voyage profit estimator
Net voyage profit from freight, fuel, port costs, demurrage and despatch.
- VTS - Standard Message
VTS - Standard Message - concept summary and example calculation.
- Wageningen B-series Propeller
Open-water propeller performance from the classic MARIN Wageningen B-series regression. The workhorse first-pass tool for screw-propeller selection.
- Wake Fraction - Taylor Approximation
Wake fraction estimate using Taylor's empirical relationship with block coefficient - preliminary propeller-design input when model-test data is unavailable.
- Wake Fraction (Harvald 1983)
Closed-form Harvald estimate of the Taylor wake fraction w from block coefficient - single- and twin-screw variants.
- Wake Fraction & Thrust Deduction
Hull–propeller interaction factors $w$, $t$ and the hull efficiency $\eta_H = (1-t)/(1-w)$ that completes the propulsive-coefficient chain.
- Wall-Sided Formula - Heel vs GZ
Wall-sided (Atwood) approximation for GZ at moderate heel - quick check before rigorous cross-curve integration.
- Wall-Wash Chloride Check
Detect chloride contamination in cleaned tanks via silver-nitrate reaction. Threshold: 1 ppm (1 mg/L) for methanol / ultra-clean cargo.
- Walther Viscosity–Temperature Equation
Predict viscosity at any temperature given two reference viscosities using the ASTM D341 (Walther) relation.
- War Risk - Additional Premium
War-risk additional premium (Additional-war-risk-premium, AWRP) for transit through Joint War Committee Listed Areas.
- Wärtsilä 20DF - MCR per Cylinder
Wärtsilä 20DF engine card: 220 kW per cylinder at 900 rpm, SFOC 186 g/kWh.
- Wärtsilä 31DF - MCR per Cylinder
Wärtsilä 31DF engine card: 580 kW per cylinder at 720 rpm, SFOC 183 g/kWh.
- Wärtsilä 31SG - MCR per Cylinder
Wärtsilä 31SG engine card: 500 kW per cylinder at 750 rpm, SFOC 183 g/kWh.
- Wärtsilä 32DF - MCR per Cylinder
Wärtsilä 32DF engine card: 540 kW per cylinder at 750 rpm, SFOC 186 g/kWh.
- Wärtsilä 46DF - MCR per Cylinder
Wärtsilä 46DF engine card: 1150 kW per cylinder at 600 rpm, SFOC 180 g/kWh.
- Wärtsilä 46TS - MCR per Cylinder
Wärtsilä 46TS engine card: 1150 kW per cylinder at 600 rpm, SFOC 180 g/kWh.
- Wärtsilä W14 - MCR per Cylinder
Wärtsilä W14 baseline: 170 kW per cylinder at 1200 rpm, SFOC 190 g/kWh. Compute MCR + fuel for given cylinder count.
- Wärtsilä W20 - MCR per Cylinder
Wärtsilä W20 baseline: 220 kW per cylinder at 900 rpm, SFOC 186 g/kWh. Compute MCR + fuel for given cylinder count.
- Wärtsilä W31 - MCR per Cylinder
Wärtsilä W31 baseline: 585 kW per cylinder at 750 rpm, SFOC 184 g/kWh. Compute MCR + fuel for given cylinder count.
- Wärtsilä W32 - MCR per Cylinder
Wärtsilä W32 baseline: 560 kW per cylinder at 750 rpm, SFOC 183 g/kWh. Compute MCR + fuel for given cylinder count.
- Wärtsilä W46 - MCR per Cylinder
Wärtsilä W46 baseline: 1150 kW per cylinder at 600 rpm, SFOC 180 g/kWh. Compute MCR + fuel for given cylinder count.
- Wärtsilä W46DF - MCR per Cylinder
Wärtsilä W46DF baseline: 1150 kW per cylinder at 600 rpm, SFOC 180 g/kWh. Compute MCR + fuel for given cylinder count.
- Wärtsilä W50DF - MCR per Cylinder
Wärtsilä W50DF baseline: 1060 kW per cylinder at 514 rpm, SFOC 180 g/kWh. Compute MCR + fuel for given cylinder count.
- Wärtsilä Wärtsilä Hi-Flex - MCR per Cylinder
Wärtsilä Wärtsilä Hi-Flex engine card: 900 kW per cylinder at 720 rpm, SFOC 185 g/kWh.
- Waste-Heat Recovery Credit
Electrical output from an exhaust-gas WHR system and the auxiliary fuel it displaces. Feeds the EEDI Category-B innovative-technology credit.
- Water Mist - Discharge Rate
Water-mist discharge rate per FSS Code Ch. 7 - 0.15 L/m²·min machinery space minimum, 25-min duration.
- Water-Spray Density (Engine Room)
Minimum water-spray application rate for fixed local water-mist / spray per SOLAS II-2 Reg 10.5: 12.5 L/min/m² over the protected area.
- Waterplane Area - Simpson 5-Ordinate
Waterplane area from 5-station Simpson's integration - the first step for hydrostatic properties.
- Waterplane Area - Simpson's 1st Rule
Integrate a waterplane or any symmetrical area using Simpson's 1st rule over an odd number of equally-spaced half-breadths.
- Waterplane Area Coefficient (Cwp)
Ratio of waterplane area to enclosing L × B rectangle - drives TPC and BMt.
- Wave Bending Moment (IACS UR S11)
IACS UR S11 rule wave-induced bending moments for the North Atlantic reference sea state.
- Wave Encounter Period - Ship Motion Input
Encounter period Te experienced by a ship at speed V making heading μ relative to waves of period T_w - a governing parameter for resonant rolling.
- Wave Steepness - Encounter Limit
Maximum wave steepness (H/λ) that a ship can encounter without breaking-wave slamming - operational limit for heavy weather routing.
- Weather Routing - Fuel Savings
Estimated voyage fuel savings from weather routing (SRA-optimised path) - typically 2-5 % on long ocean passages.
- Weather Routing Savings
Net fuel saving from optimised track selection through time-varying wind/wave/current, less the extra distance accepted.
- Weather working day calculator
Convert elapsed hours into weather working hours by subtracting bad-weather time.
- Web Frame - Panel Deflection
Maximum lateral deflection of a simply-supported plate panel under uniform pressure - the classic rectangular-plate bending solution.
- Web Frame - Required Depth
Required web-frame depth based on side pressure and span - concept-stage sizing for transverse webs in cargo holds.
- Weibull MTBF
Weibull distribution mean: MTBF = η · Γ(1 + 1/β). Useful when β ≠ 1 (wear-out or infant-mortality).
- Welding Heat Input
Arc heat input Q = V·I·60 / (v·1000) - a key control parameter for thick-plate steel welding and hardness prevention.
- Wetted Surface - Mumford Formula
Wetted-surface estimate for displacement hulls from LWL, T and displacement. Used for quick resistance estimates when offsets are unavailable.
- Wheelhouse - Forward Visibility
Forward visibility check per SOLAS V Reg. 22 - blind sector ≤ 2 L or 500 m, whichever less.
- WHR Exhaust Economizer - Steam Generation
Exhaust-gas economizer steam production rate given exhaust mass flow, inlet T, and evaporator pinch-point temperature.
- Wind Resistance
Air-drag force on a ship's transverse above-water area.
- Wind SOV (Service Operation Vessel) Fuel & CO₂
Offshore-wind Service Operation Vessels - hotels for technicians with integrated crew-transfer capability. Outside CII scope; industry benchmark is kg CO₂ per technician-day.
- Wind Triangle - True Wind
Compute true wind from apparent wind and ship course/speed.
- Windlass Pull - Class Rule Minimum
Minimum continuous pull required of a windlass per IACS UR A1 - a function of anchor mass and chain diameter.
- Wing Sail / Kite Wind Assist
Thrust power from a rigid wing sail or towing kite installation.
- WinGD RT-flex48T-D - MCR per Cylinder
WinGD RT-flex48T-D engine card: 2250 kW per cylinder at 124 rpm, SFOC 169 g/kWh.
- WinGD RT-flex58T-D - MCR per Cylinder
WinGD RT-flex58T-D engine card: 3180 kW per cylinder at 105 rpm, SFOC 167 g/kWh.
- WinGD X35-B - MCR per Cylinder
WinGD X35-B baseline: 1865 kW per cylinder at 167 rpm, SFOC 164 g/kWh. Compute MCR + fuel for given cylinder count.
- WinGD X35DF-S1.0 - MCR per Cylinder
WinGD X35DF-S1.0 engine card: 1865 kW per cylinder at 167 rpm, SFOC 157 g/kWh.
- WinGD X40-B - MCR per Cylinder
WinGD X40-B baseline: 2500 kW per cylinder at 146 rpm, SFOC 163 g/kWh. Compute MCR + fuel for given cylinder count.
- WinGD X40DF-S1.0 - MCR per Cylinder
WinGD X40DF-S1.0 engine card: 2500 kW per cylinder at 146 rpm, SFOC 156 g/kWh.
- WinGD X52 - MCR per Cylinder
WinGD X52 baseline: 3220 kW per cylinder at 105 rpm, SFOC 162 g/kWh. Compute MCR + fuel for given cylinder count.
- WinGD X52DF-2.0 - MCR per Cylinder
WinGD X52DF-2.0 engine card: 3220 kW per cylinder at 105 rpm, SFOC 156 g/kWh.
- WinGD X62 - MCR per Cylinder
WinGD X62 baseline: 4350 kW per cylinder at 103 rpm, SFOC 161 g/kWh. Compute MCR + fuel for given cylinder count.
- WinGD X62DF-2.0 - MCR per Cylinder
WinGD X62DF-2.0 engine card: 4350 kW per cylinder at 103 rpm, SFOC 156 g/kWh.
- WinGD X72 - MCR per Cylinder
WinGD X72 baseline: 5700 kW per cylinder at 89 rpm, SFOC 161 g/kWh. Compute MCR + fuel for given cylinder count.
- WinGD X72DF-2.1 - MCR per Cylinder
WinGD X72DF-2.1 engine card: 5700 kW per cylinder at 89 rpm, SFOC 156 g/kWh.
- WinGD X82 - MCR per Cylinder
WinGD X82 baseline: 7150 kW per cylinder at 84 rpm, SFOC 160 g/kWh. Compute MCR + fuel for given cylinder count.
- WinGD X82DF-2.1 - MCR per Cylinder
WinGD X82DF-2.1 engine card: 7150 kW per cylinder at 84 rpm, SFOC 155 g/kWh.
- WinGD X92 - MCR per Cylinder
WinGD X92 baseline: 8730 kW per cylinder at 80 rpm, SFOC 159 g/kWh. Compute MCR + fuel for given cylinder count.
- WinGD X92DF - MCR per Cylinder
WinGD X92DF baseline: 8730 kW per cylinder at 80 rpm, SFOC 158 g/kWh. Compute MCR + fuel for given cylinder count.
- WinGD X92DF-2.1 - MCR per Cylinder
WinGD X92DF-2.1 engine card: 8730 kW per cylinder at 80 rpm, SFOC 155 g/kWh.
- Wobbe Index
Wobbe Index WI = HHV / √SG - measure of thermal energy delivered through a fixed orifice. Combustors are rated by Wobbe, not calorific value.
- Worldscale Freight
Freight = WS rate (points) × WS flat × B/L tonnes / 100. Worldscale flat rate revised annually.
- Yanmar Yanmar 6EY22W - MCR per Cylinder
Yanmar Yanmar 6EY22W baseline: 400 kW per cylinder at 720 rpm, SFOC 197 g/kWh. Compute MCR + fuel for given cylinder count.
- Yanmar Yanmar 6EY26 - MCR per Cylinder
Yanmar Yanmar 6EY26 engine card: 1320 kW per cylinder at 720 rpm, SFOC 195 g/kWh.
- Yanmar Yanmar 6HYM-WET - MCR per Cylinder
Yanmar Yanmar 6HYM-WET engine card: 471 kW per cylinder at 1900 rpm, SFOC 197 g/kWh.
- Yard - BAE Systems Maritime
BAE Systems Maritime, GB (Glasgow) - Naval. Capacity + typical newbuild segment.
- Yard - Chantiers de l'Atlantique
Chantiers de l'Atlantique, FR (Saint-Nazaire) - Cruise mega ship. Capacity + typical newbuild segment.
- Yard - COSCO Dalian
COSCO Dalian, CN (Dalian) - Container + tanker. Capacity + typical newbuild segment.
- Yard - COSCO Nantong
COSCO Nantong, CN (Nantong) - Bulker. Capacity + typical newbuild segment.
- Yard - COSCO Zhoushan
COSCO Zhoushan, CN (Zhoushan) - Ship repair + new. Capacity + typical newbuild segment.
- Yard - Damen Shipyards Group
Damen Shipyards Group, NL (Multiple) - OSV + small ship. Capacity + typical newbuild segment.
- Yard - DSME (Hanwha Ocean)
DSME (Hanwha Ocean), KR (Okpo) - LNG + Subsea. Capacity + typical newbuild segment.
- Yard - Fincantieri
Fincantieri, IT (Monfalcone) - Cruise specialist. Capacity + typical newbuild segment.
- Yard - HD Hyundai Heavy Industries
HD Hyundai Heavy Industries, KR (Ulsan) - Largest by capacity. Capacity + typical newbuild segment.
- Yard - HD Hyundai Mipo
HD Hyundai Mipo, KR (Ulsan) - Midsize tankers. Capacity + typical newbuild segment.
- Yard - HD Hyundai Samho
HD Hyundai Samho, KR (Jeonnam) - LNG + bulk. Capacity + typical newbuild segment.
- Yard - Hudong-Zhonghua
Hudong-Zhonghua, CN (Shanghai) - LNGC + container. Capacity + typical newbuild segment.
- Yard - Huntington Ingalls
Huntington Ingalls, US (Virginia/Mississippi) - US naval. Capacity + typical newbuild segment.
- Yard - Imabari Shipbuilding
Imabari Shipbuilding, JP (Imabari) - Bulker Kamsarmax. Capacity + typical newbuild segment.
- Yard - Irving Shipbuilding
Irving Shipbuilding, CA (Halifax) - Naval. Capacity + typical newbuild segment.
- Yard - Japan Marine United
Japan Marine United, JP (Multiple) - LNG + Container. Capacity + typical newbuild segment.
- Yard - Jiangnan Shipyard
Jiangnan Shipyard, CN (Shanghai) - Large container + tanker. Capacity + typical newbuild segment.
- Yard - Jiangsu Yangzijiang
Jiangsu Yangzijiang, CN (Jiangyin) - Bulker + container. Capacity + typical newbuild segment.
- Yard - Keppel Offshore & Marine
Keppel Offshore & Marine, SG (Singapore) - Offshore/Rig. Capacity + typical newbuild segment.
- Yard - Meyer Turku
Meyer Turku, FI (Turku) - Cruise + Ro-Pax. Capacity + typical newbuild segment.
- Yard - Meyer Werft
Meyer Werft, DE (Papenburg) - Cruise. Capacity + typical newbuild segment.
- Yard - Namura Shipbuilding
Namura Shipbuilding, JP (Imari) - Bulker. Capacity + typical newbuild segment.
- Yard - Naval Group
Naval Group, FR (Lorient) - Naval. Capacity + typical newbuild segment.
- Yard - Navantia
Navantia, ES (Ferrol) - Naval + Offshore. Capacity + typical newbuild segment.
- Yard - New Times CSSC Huangpu
New Times CSSC Huangpu, CN (Guangzhou) - Ro-ro + naval. Capacity + typical newbuild segment.
- Yard - New Times SB
New Times SB, CN (Jingjiang) - Bulk + container. Capacity + typical newbuild segment.
- Yard - Oshima Shipbuilding
Oshima Shipbuilding, JP (Nagasaki) - Bulker. Capacity + typical newbuild segment.
- Yard - Samsung Heavy Industries
Samsung Heavy Industries, KR (Geoje) - LNGC specialist. Capacity + typical newbuild segment.
- Yard - Sembcorp Marine
Sembcorp Marine, SG (Singapore) - Offshore/Rig. Capacity + typical newbuild segment.
- Yard - Shanghai Waigaoqiao
Shanghai Waigaoqiao, CN (Shanghai) - Bulk + container. Capacity + typical newbuild segment.
- Yard - Tsuneishi
Tsuneishi, JP (Hiroshima) - Tanker + bulker. Capacity + typical newbuild segment.
- Yard - Türkiye Gemi Sanayii
Türkiye Gemi Sanayii, TR (Istanbul) - Tanker + OSV. Capacity + typical newbuild segment.
- Yard - Ulstein Verft
Ulstein Verft, NO (Ulsteinvik) - OSV + SOV. Capacity + typical newbuild segment.
- Yard - Vard
Vard, NO (Multiple) - OSV specialist (Fincantieri). Capacity + typical newbuild segment.
- Yard - Yangzijiang Mitsui
Yangzijiang Mitsui, CN (Jiangyin) - Tanker + container. Capacity + typical newbuild segment.
- Yokohama (JP) - Port Card
Yokohama, JP - annual throughput ~135,000 TEU, max draft 14 m. Partner to Tokyo.
- Zig-Zag - Second Overshoot Check
Second overshoot of a 10°/10° zig-zag compared to the IMO MSC.137(76) criterion - typically limit = first-overshoot limit + 5°.
- Zig-Zag Overshoot - IMO Check
First overshoot in a 10°/10° zig-zag manoeuvre compared to IMO A.751 / MSC.137(76) pass limits.