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BS EN ISO 3657:2020

BS EN ISO 3657:2020

$102.76

Animal and vegetable fats and oils. Determination of saponification value

Published By Publication Date Number of Pages
BSI 2020 18
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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.

PDF Catalog

PDF Pages PDF Title
2 National foreword
4 European foreword
6 Foreword
7 1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Reagents
8 6 Apparatus
7 Sampling
8 Preparation of the test sample
9 9 Procedure
9.1 Test portion
9.2 Determination
9.3 Blank test
10 Expression of results
10 11 Precision
11.1 Results of interlaboratory test
11.2 Repeatability
11.3 Reproducibility
12 Test report
11 Annex A (informative) Results of the interlaboratory test
12 Annex B (informative) Calculation of saponification value from fatty acid composition data
16 Bibliography

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BS EN ISO 3657:2020
$102.76