# ISO 1833-21:2006 — Withdrawn and superseded ISO standards

For ISO 1833-21:2006, item title is Textiles — Quantitative chemical analysis — Part 21: Mixtures of chlorofibres, certain modacrylics, certain elastanes, acetates, triacetates and certain other fibres (method using cyclohexanone); status code is 9599; successor is ISO 1833-21:2019; withdrawn / published date is 2006-06-02, recorded from its source on 2026-08-05.

- **Identifier:** ISO 1833-21:2006 _(verified: appears in the quote below)_
- **Item title:** Textiles — Quantitative chemical analysis — Part 21: Mixtures of chlorofibres, certain modacrylics, certain elastanes, acetates, triacetates and certain other fibres (method using cyclohexanone) _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 1833-21:2019
- **Withdrawn / published date:** 2006-06-02 _(verified: appears in the quote below)_

## What the source says

> 40907,IS,,ISO 1833-21:2006,"Textiles — Quantitative chemical analysis — Part 21: Mixtures of chlorofibres, certain modacrylics, certain elastanes, acetates, triacetates and certain other fibres (method using cyclohexanone)","Textiles — Analyse chimique quantitative — Partie 21: Mélanges de chlorofibres, certains modacryliques, certains élasthannes, acétates, triacétates et de certaines autres fibres (méthode à la cyclohexanone)",2006-06-02,1,['59.060.01'],ISO/TC 38,9599,"[6484,6483]",[74086],"['en','fr']",5,"<p>ISO 1833-21:2006 specifies a method, using cyclohexanone, to determine the percentage of chlorofibre, modacrylic, elastane, acetate and triacetate, after removal of non-fibrous matter

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).