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ISO 3657:2023

Current Revision

Animal and vegetable fats and oils - Determination of saponification value

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This document specifies a method for the determination of the saponification value of animal and vegetable fats and oils. The saponification value is a measure of the free and esterified acids present in fats and fatty acids.

The method is applicable to refined and crude vegetable and animal fats.

If mineral acids are present, the results given by this method are not interpretable unless the mineral acids are determined separately.

The saponification value can also be calculated from fatty acid data obtained by gas chromatography analysis as given in Annex B. For this calculation, it is necessary to be sure that the sample does not contain major impurities or is thermally degraded.


SDO ISO: International Organization for Standardization
Document Number ISO 3657
Publication Date Not Available
Language en - English
Page Count
Revision Level
Supercedes
Committee ISO/TC 34/SC 11
Publish Date Document Id Type View
Not Available ISO 3657:2023 Revision