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CEN
EN ISO 3657:2013

EN ISO 3657:2013

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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Animal and vegetable fats and oils - Determination of saponification value (ISO 3657:2013)

Superseded date

09-05-2020

Superseded by

EN ISO 3657:2020

Published date

17-07-2013

Publisher

Comite Europeen de Normalisation

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Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Reagents
6 Apparatus
7 Sampling
8 Preparation of the test sample
9 Procedure
10 Expression of results
11 Precision
12 Test report
Annex A (informative) - Results of an interlaboratory
        test
Annex B (informative) - Calculation of saponification
        value from fatty acid composition data
Bibliography

ISO 3657:2013 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 an annex. For this calculation, it is necessary to be sure that the sample does not contain major impurities or is thermally degraded.

Committee
CEN/TC 307
DocumentType
Standard
PublisherName
Comite Europeen de Normalisation
Status
Superseded
SupersededBy

ISO 5725-1:1994 Accuracy (trueness and precision) of measurement methods and results — Part 1: General principles and definitions
ISO 5555:2001 Animal and vegetable fats and oils — Sampling
ISO 5508:1990 Animal and vegetable fats and oils Analysis by gas chromatography of methyl esters of fatty acids
ISO 12966-2:2017 Animal and vegetable fats and oils — Gas chromatography of fatty acid methyl esters — Part 2: Preparation of methyl esters of fatty acids
ISO 12966-3:2016 Animal and vegetable fats and oils Gas chromatography of fatty acid methyl esters Part 3: Preparation of methyl esters using trimethylsulfonium hydroxide (TMSH)
ISO 5725-2:1994 Accuracy (trueness and precision) of measurement methods and results Part 2: Basic method for the determination of repeatability and reproducibility of a standard measurement method
ISO 661:2003 Animal and vegetable fats and oils — Preparation of test sample

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