The second edition cancels and replaces the first edition (ISO 3657:1977), of which it constitutes a technical revision. The method consists in boiling of a sample under reflux with ethanolic potassium hydroxide solution, followed by titration of the excess potassium hydroxide with standard volumetric hydrochloric acid solution.

General information

  • Status :  Withdrawn
    Publication date : 1988-12
  • Edition : 2
    Number of pages : 2
  • :
    ISO/TC 34/SC 11
    Animal and vegetable fats and oils
  • 67.200.10
    Animal and vegetable fats and oils

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