Polar Code thermal-protective aid (TPA) requirement - mandatory for lifeboat occupants + each person on survival craft.
Formula
$$ N_{TPA} = 1.1 \cdot POB\text{ (polar)} $$
Symbol legend
| Symbol | Meaning | Unit | Source |
|---|---|---|---|
| $TPA$ | Thermal Protective Aid | - | LSA Code |
Sources
- Polar Code I-A Ch. 8.