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HM 40. Guidelines for the crude oil washing of ships’ tanks and the heating of crude oil being transported by sea

This publication provides guidelines for the carriage, heating and crude oil washing (COW) of many crude oils that may be transported by sea.

As well as enhancing the current regulations regarding reducing marine pollution, the publication provides guidance on the grades of crude oil that may give rise to an increase in volatile organic compounds (VOC) emissions if used excessively for COW. The publication also highlights a number of crude oils that are known to be potentially harmful due to concentration of hydrogen sulfide (H2S) and/or benzene.

[9780852939321 - ISBN of electronic version]

Superseded by 4th ed, February 2023

Book details


Websites: EI Technical Publications website

Physical description: A4 navy and white 65pp

Edition: 3rd

Publisher: Energy Institute

Place of publication: London, England

ISBN: 9780852939314|9780852939321

Report number: HM40

Classification: 670 -

Keywords: Cargo Inspection and Marine Operations - crude oil washing

Subjects: Hydrocarbon management, Tankers - ships