# ISO 661:1989 — Withdrawn and superseded ISO standards

For ISO 661:1989, item title is Animal and vegetable fats and oils — Preparation of test sample; status code is 9599; successor is ISO 661:2003; withdrawn / published date is 1989-06-15, recorded from its source on 2026-08-05.

- **Identifier:** ISO 661:1989 _(verified: appears in the quote below)_
- **Item title:** Animal and vegetable fats and oils — Preparation of test sample _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 661:2003
- **Withdrawn / published date:** 1989-06-15 _(verified: appears in the quote below)_

## What the source says

> 4819,IS,,ISO 661:1989,Animal and vegetable fats and oils — Preparation of test sample,Corps gras d'origines animale et végétale — Préparation de l'échantillon pour essai,1989-06-15,2,['67.200.10'],ISO/TC 34/SC 11,9599,[4818],[38145],"['en','fr']",2,"<p>The method is not applicable to emulsified fats such as butter, margarine, mayonnaise, ect. The method consists in mixing of the fatty matter, heated, if necessary, to an appropriate temperature, then, if required, separating of insoluble substances by filtration and removing of water by drying with anhydrous sodium sulfate.</p>"

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).