Ecol tests: Water content in oil (Karl Fischer) – coulometric method

  • Standards: PN-EN ISO 12937, ASTM D6304, PB 07.31.00/aw
  • Unit: ppm
  • Oil quantity: 5 ml
  • Application: Wszystkie rodzaje olejów
  • Scope of designation: 1-10000 ppm (0,0001-0,1%)


  • Method description:

    Water from the sample is extracted into the gas phase and transported to the measuring cell to perform the titration, where iodine is generated by electrochemical oxidation.



    Interpretation of results:

    Water, next to mechanical impurities, is the second most destructive factor in oil. It causes oil degradation, activates corrosion and hydrogen wear processes, may cause cavitation, and as a result, significantly reduces the service life of lubricated components. The water content in oil should not exceed the limits specified for the oil type and its application (equipment type).

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