OWS - 15 ppm Alarm Threshold Check

Check whether the oil content of overboard discharge from the 15 ppm Oily Water Separator is compliant with MARPOL Annex I Reg. 14 - assumes bilge holding tank, OWS flow rate, and alarm settings.

OWSMARPOL I15 ppm

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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

\text{ppm}_{effluent} < 15, \quad t_{cal} \leq 12\,\text{mo}, \quad V_{3-way} = \text{fail-safe}

Symbol	Meaning	Unit
$ppm$	Oil content in effluent	ppm
$t_{cal}$	Calibration age	months
$V_{3-way}$	3-way recirculating valve

Source: MARPOL Annex I Reg. 14; IMO MEPC.107(49)

In short

Check whether the oil content of overboard discharge from the 15 ppm Oily Water Separator is compliant with MARPOL Annex I Reg.

Learn the theory MARPOL Convention: Pollution Prevention