# ISO 17226-1:2018 — Withdrawn and superseded ISO standards For ISO 17226-1:2018, item title is Leather — Chemical determination of formaldehyde content — Part 1: Method using high performance liquid chromatography; status code is 9599; successor is ISO 17226-1:2021; withdrawn / published date is 2018-12-21, recorded from its source on 2026-08-05. - **Identifier:** ISO 17226-1:2018 _(verified: appears in the quote below)_ - **Item title:** Leather — Chemical determination of formaldehyde content — Part 1: Method using high performance liquid chromatography _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 17226-1:2021 - **Withdrawn / published date:** 2018-12-21 _(verified: appears in the quote below)_ ## What the source says > 73708,IS,,ISO 17226-1:2018,Leather — Chemical determination of formaldehyde content — Part 1: Method using high performance liquid chromatography,Cuir — Dosage chimique du formaldéhyde — Partie 1: Méthode par chromatographie en phase liquide à haute performance,2018-12-21,2,['59.140.30'],IULTCS,9599,[43476],[78128],"['en','fr']",9,"
This document specifies a method for the determination of free and released formaldehyde in leathers. This method, based on high performance liquid chromatography (HPLC), is selective and not sensitive to coloured extracts and is intended to be used for precise quantification of formaldehyde.
The formaldehyde content is taken to be the quantity of free- ## 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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).