# ISO 3657:2002 — Withdrawn and superseded ISO standards For ISO 3657:2002, item title is Animal and vegetable fats and oils — Determination of saponification value; status code is 9599; successor is ISO 3657:2013; withdrawn / published date is 2002-06-13, recorded from its source on 2026-08-05. - **Identifier:** ISO 3657:2002 _(verified: appears in the quote below)_ - **Item title:** Animal and vegetable fats and oils — Determination of saponification value _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 3657:2013 - **Withdrawn / published date:** 2002-06-13 _(verified: appears in the quote below)_ ## What the source says > 34900,IS,,ISO 3657:2002,Animal and vegetable fats and oils — Determination of saponification value,Corps gras d'origines animale et végétale — Détermination de l'indice de saponification,2002-06-13,3,['67.200.10'],ISO/TC 34/SC 11,9599,[9108],[60526],"['en','fr']",6,"
This International Standard 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 a ## Source - https://isopublicstorageprod.blob.core.windows.net/opendata/_latest/iso_deliverables_metadata/csv/iso_deliverables_metadata.csv Last verified: 2026-08-05. Review by: 2027-02-01. Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).