# ISO 12966-3:2009 — Withdrawn and superseded ISO standards

For ISO 12966-3:2009, item title is Animal and vegetable fats and oils — Gas chromatography of fatty acid methyl esters — Part 3: Preparation of methyl esters using trimethylsulfonium hydroxide (TMSH); status code is 9599; successor is ISO 12966-3:2016; withdrawn / published date is 2009-12-04, recorded from its source on 2026-08-05.

- **Identifier:** ISO 12966-3:2009 _(verified: appears in the quote below)_
- **Item title:** Animal and vegetable fats and oils — Gas chromatography of fatty acid methyl esters — Part 3: Preparation of methyl esters using trimethylsulfonium hydroxide (TMSH) _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 12966-3:2016
- **Withdrawn / published date:** 2009-12-04 _(verified: appears in the quote below)_

## What the source says

> 52289,IS,,ISO 12966-3:2009,Animal and vegetable fats and oils — Gas chromatography of fatty acid methyl esters — Part 3: Preparation of methyl esters using trimethylsulfonium hydroxide (TMSH),Corps gras d'origines animale et végétale — Chromatographie en phase gazeuse des esters méthyliques d'acides gras — Partie 3: Préparation des esters méthyliques à l'aide d'hydroxyde de triméthylsulfonium (TMSH),2009-12-04,1,['67.200.10'],ISO/TC 34/SC 11,9599,,[70249],"['en','fr','ru']",4,"<p>ISO 12966-3:2009 specifies a rapid base-catalysed transesterification method for fats and oils with trimethylsulfonium hydroxide to prepare fatty acid methyl esters. The method is exclusively applicable to the prepa

## 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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).