Inert Gas - O₂ ≤ 8 % Check

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.

IGTankerSOLAS

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This calculator requires JavaScript to compute its result. The formula, symbols, and regulatory sources are shown in the Formula section below.

Formula, assumptions, and limits

O_2^{IG} \leq 5\%, \quad O_2^{tank} \leq 8\%, \quad p_{tank} > 0

Symbol	Meaning	Unit
$O_2^{IG}$	IG output oxygen	%vol
$O_2^{tank}$	Tank atmosphere oxygen	%vol
$p_{tank}$	Tank gauge pressure	mbar

Source: SOLAS II-2 Reg. 4.5

In short

Check oxygen concentration in inert gas output and cargo tank atmosphere per SOLAS II-2 Reg.

Learn the theory SOLAS Convention