Section 11. Approved Methods and Programmes for Crude Oil Washing
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Statutory Documents - IMO Publications and Documents - Specifications and Manuals - Crude Oil Washing Systems - Standard format for the Crude Oil Washing Operations and Equipment ManualResolution MEPC.3(XII) Amended by Resolution MEPC.81(43) - Contents of Sections 1 to 18 - Section 11. Approved Methods and Programmes for Crude Oil Washing

Section 11. Approved Methods and Programmes for Crude Oil Washing

 This section contains those details which form the basis of crude oil washing in the tanker and which are necessary to formulate a washing programme which will accord with all foreseeable circumstances of cargo discharge restraints. It includes information on:

  • (1) the minimum number of tanks to be washed in accordance with paragraph 6.1 of the revised Specifications;

  • (2) the method of washing each tank, i.e. single or multistage;

  • (3) the number of tank washing machines to be used simultaneously;

  • (4) the crude oil washing pressure and means to maintain the required pressure;

  • (5) the duration of the crude oil wash;

  • (6) the preferred order in which tanks are to be washed;

  • (7) the minimum trim during completion of washing and draining tanks;

  • (8) when draining and stripping of tanks is to commence.


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