Check whether prewash is required per MARPOL Annex II Reg. 13 - mandatory for Cat X and high-viscosity / solidifying cargoes.
Formula
$$ \text{Prewash} = f(\text{cat}, \mu, T_{melt}) $$
Symbol legend
| Symbol | Meaning | Unit | Source |
|---|---|---|---|
| $cat$ | Category X / Y / Z | - | IBC Ch.17 |
| $\mu$ | Viscosity @ 20 °C | cP | MSDS |
Sources
- MARPOL Annex II Reg. 13.