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ISO 3657:2020

Animal and vegetable fats and oils — Determination of saponification value

Apr 17, 2020
95.99   Withdrawal of Standard   Jul 4, 2023

General information

95.99     Jul 4, 2023

ISO

ISO/TC 34/SC 11

International Standard

67.200.10  

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Scope

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.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 3657:2013

NOW

WITHDRAWN
ISO 3657:2020
95.99 Withdrawal of Standard
Jul 4, 2023

REVISED BY

PUBLISHED
ISO 3657:2023

National adoptions

SRPS EN ISO 3657:2020  
ISS

Animal and vegetable fats and oils - Determination of saponification value (ISO 3657:2020)

95.99   Withdrawal of Standard

E034-2,11 more