# ISO 18218-1:2015 — Withdrawn and superseded ISO standards For ISO 18218-1:2015, item title is Leather — Determination of ethoxylated alkylphenols — Part 1: Direct method; status code is 9599; successor is ISO 18218-1:2023; withdrawn / published date is 2015-06-08, recorded from its source on 2026-08-05. - **Identifier:** ISO 18218-1:2015 _(verified: appears in the quote below)_ - **Item title:** Leather — Determination of ethoxylated alkylphenols — Part 1: Direct method _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 18218-1:2023 - **Withdrawn / published date:** 2015-06-08 _(verified: appears in the quote below)_ ## What the source says > 61788,IS,,ISO 18218-1:2015,Leather — Determination of ethoxylated alkylphenols — Part 1: Direct method,Cuir — Détermination des alkylphénols éthoxylés — Partie 1: Méthode directe,2015-06-08,1,['59.140.30'],IULTCS,9599,,[83457],"['en','fr']",7,"
ISO 18218-1:2015 is a method for determining ethoxylated alkylphenols (nonyphenol ethoxylate [NPEOn with 1 ≤ n ≤ 16] and octylphenol ethoxylate [OPEOn with 1 ≤ n ≤ 16]) in leather. This direct method is especially suitable where a larger number of leather samples are to be checked for the presence of ethoxylated alkylphenols.
This method requires the use of high-performance liquid chromatography (HPLC) with triple quadrupole mass spectrometer ## 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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).