Decision support for whether a prewash is required after discharging a Category X/Y cargo.
Formula
$$ \text{Prewash} = \text{CatX} \lor (\text{CatY} \land (\text{HV} \lor \text{Solidifying})) $$Symbol legend
| Symbol | Meaning | Unit | Source |
|---|---|---|---|
| $HV$ | High viscosity, > 25 mPa·s at unloading T | boolean | BDN / CoA |
| $Solidifying$ | Melting point > 15 °C | boolean | CoA |
Sources
- MARPOL Annex II Reg 13.