M00000667
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ISO 3657 4th Edition, July 15, 2013 Animal and Vegetable Fats and Oils - Determination of Saponification Value
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Availability date: 07/13/2021
Description / Abstract:
This International Standard 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 liquid 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.