1 Theory
Clasification Society 2024 - Version 9.40
Statutory Documents - IMO Publications and Documents - Circulars - Marine Environment Protection Committee - MEPC.1/Circular.677 – Guide to Diagnosing Contaminants in Oily Bilge Water to Maintain, Operate and Troubleshoot Bilge Water Treatment Systems – (22 July 2009) - Annex – A Guide to Diagnosing Contaminants in Oily Bilge Water to Maintain, Operate and Troubleshoot Bilge Water Treatment Systems - Annex 5 – Post–treatment (OWS) Oil Sheen - 1 Theory

1 Theory

 If a layer of oil or sheen is present post-OWS and the oil is not cloudy this indicates that gravity separable oil is bypassing the OWS. (The OCM is in recirculation.)

Parent topic: Annex 5 – Post–treatment (OWS) Oil Sheen
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