Foreword

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This document was prepared by Technical Committee ISO/TC 34, Food products, Subcommittee SC 11, Animal and vegetable fats and oils, in collaboration with the European Committee for Standardization (CEN) Technical Committee CEN/TC 307, Oilseeds, vegetable and animal fats and oils and their by-products — Methods of sampling and analysis, in accordance with the Agreement on technical cooperation between ISO and CEN (Vienna Agreement).

This sixth edition cancels and replaces the fifth edition (ISO 3657:2020), which has been technically revised.

The main changes are as follows:

— errors in the calculations of the mean relative molecular mass (C16 TAG molecular weight) in B.7.4 and saponification value in B.7.5 have been corrected;
— incorrect values for the repeatability limit as well as the reproducibility limit values in Table A.1 have been corrected.

Any feedback or questions on this document should be directed to the user’s national standards body. A complete listing of these bodies can be found at www.iso.org/members.html.

BS EN ISO 3657:2023

Animal and vegetable fats and oils. Determination of saponification value

Current

Published:

31 Jul 2023