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.
Applied UV dose
42.0mJ/cm²
Result
Pass - ≥ 40 mJ/cm² reference
Formula, assumptions, and limits
Actual BWMS certifies against BWMC D-2 viable-organism counts, not a specific dose. Dose is used in type-approval biodosimetry validation. Monitor lamp age and quartz sleeve fouling.
Symbol legend
| Symbol | Meaning | Unit | Source |
|---|---|---|---|
| UV intensity at sleeve | mW/cm² | UV sensor | |
| Residence time in chamber | s | flow/volume | |
| UV transmittance | - | lab test |