ISO 3657:2020

Animal and vegetable fats and oils — Determination of saponification value

Publication date: Apr 17, 2020

General information

Current stage: 60.60 Effective date: Apr 17, 2020

Originator: ISO

Owner: ISO/TC 34/SC 11

Type: International Standard

ICS: 67.200.10

Languages: English French

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Status: Published

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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

Revises
ISO 3657:2013

NOW

PUBLISHED
ISO 3657:2020
60.60 Standard published
Apr 17, 2020

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