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EVS-EN ISO 3657:2023

Animal and vegetable fats and oils - Determination of saponification value (ISO 3657:2023)

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Kehtiv alates 01.08.2023
Alusdokumendid
ISO 3657:2023; EN ISO 3657:2023
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Standardi ajalugu

Staatus
Kuupäev
Tüüp
Nimetus
01.08.2023
Põhitekst
15.05.2020
Põhitekst
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.

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