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.
Formula
$$ O_2^{IG} \leq 5\%, \quad O_2^{tank} \leq 8\%, \quad p_{tank} > 0 $$Symbol legend
| Symbol | Meaning | Unit | Source |
|---|---|---|---|
| $O_2^{IG}$ | IG output oxygen | %vol | fixed O₂ analyser |
| $O_2^{tank}$ | Tank atmosphere oxygen | %vol | portable O₂ meter |
| $p_{tank}$ | Tank gauge pressure | mbar | tank PG |
Sources
- SOLAS II-2 Reg. 4.5.