Standard test: ISO 3675
Measurement: Kg/cbm at 15°C


It is the density differential between contaminants and fuel that allow settling tanks and centrifugal seperators to remove water and sludge. Heating the fuel will increase the density differential and make things easier for the seperator to extract the contaminants.

Steps to consider:

  • Does the vessel have the capability to pre-heat settling tanks?
  • Can a standby separator be operated in parallel with the other as a purifier?

If the answers to the above are all yes then the fuel can be blended into spec with a compatible marine diesel oil. Otherwise the batch must be de-bunkered and replaced at the next port.