# ISO 21701:2019 — Withdrawn and superseded ISO standards For ISO 21701:2019, item title is Textiles —Test method for accelerated hydrolysis of textile materials and biodegradation under controlled composting conditions of the resulting hydrolysate; status code is 9599; successor is ISO 21701:2025; withdrawn / published date is 2019-09-04, recorded from its source on 2026-08-05. - **Identifier:** ISO 21701:2019 _(verified: appears in the quote below)_ - **Item title:** Textiles —Test method for accelerated hydrolysis of textile materials and biodegradation under controlled composting conditions of the resulting hydrolysate _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 21701:2025 - **Withdrawn / published date:** 2019-09-04 _(verified: appears in the quote below)_ ## What the source says > 71364,IS,,ISO 21701:2019,Textiles —Test method for accelerated hydrolysis of textile materials and biodegradation under controlled composting conditions of the resulting hydrolysate,Textiles — Méthode d’essai pour hydrolyse accélérée des matières textiles et la biodégradation dans des conditions de compostage contrôlées de l'hydrolysat résultant,2019-09-04,1,['59.080.01'],ISO/TC 38,9599,,[88791],['en'],10,"
This document specifies a test method for the determination of the biodegradability of the hydrolysate of textile materials obtained after accelerated hydrolysis under controlled composting conditions by measurement of the amount of evolved carbon dioxide with a gas chromatography.
< ## 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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).