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ISO 28520:2009

Current Revision

Ships and marine technology - Lubricating oil systems - Guidance for grades of cleanliness and flushing

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ISO 28520:2009 provides guidance for flushing of lubricating oil systems, and grading of the resultant cleanliness. The flushing process is twofold:

  • to remove dirt from the erection and installation, and
  • to demonstrate that the pipes and the system as a whole is sufficiently clean.

Crankcase and, where applicable, gearbox etc. are cleaned separately before flushing, and requirements relating to this are also specified in ISO 28520:2009. Similar considerations apply to the system tank and other components of the system.

For the purposes of ISO 28520:2009, the cleaning process is considered as “washing through” when the Reynolds is equal to or less than 3 000 and “flushing” when the Reynolds number is equal to or greater than 3 000.

Where available, any original equipment manufacturer requirements for flushing take precedence over the requirements outlined in ISO 28520:2009.


SDO ISO: International Organization for Standardization
Document Number ISO 28520
Publication Date Not Available
Language en - English
Page Count
Revision Level
Supercedes
Committee ISO/TC 8/SC 3
Publish Date Document Id Type View
Not Available ISO 28520:2009 Revision