Historical

ISO 3657:1988

Animal and vegetable fats and oils -- Determination of saponification value

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.

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International Organization for Standardization [iso]

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