# ISO 6656:1984 — Withdrawn and superseded ISO standards

For ISO 6656:1984, item title is Animal and vegetable fats and oils — Determination of polyethylene-type polymers; status code is 9599; successor is ISO 6656:2002; withdrawn / published date is 1984-12-01, recorded from its source on 2026-08-05.

- **Identifier:** ISO 6656:1984 _(verified: appears in the quote below)_
- **Item title:** Animal and vegetable fats and oils — Determination of polyethylene-type polymers _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 6656:2002
- **Withdrawn / published date:** 1984-12-01 _(verified: appears in the quote below)_

## What the source says

> 13083,IS,,ISO 6656:1984,Animal and vegetable fats and oils — Determination of polyethylene-type polymers,Corps gras d'origines animale et végétale — Dosage des polymères de type polyéthylène,1984-12-01,1,['67.200.10'],ISO/TC 34/SC 11,9599,,[35662],"['en','fr']",3,"<p>Specifies the reference method. Below 50 mg of polymers per kilogram the presicion of the method is insufficient. The method consists in dissolving of a test portion in chloroform, after acid treatment, then filtrating through a sintered filter crucible, washing the crucible and its content, drying and weighing, followed by extraction of the polymers from the insoluble matter by boiling tetrachloroethylene, drying the crucible w

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).