# ISO 2871-1:1988 — Withdrawn and superseded ISO standards For ISO 2871-1:1988, item title is Surface active agents — Detergents — Determination of cationic-active matter content — Part 1: High-molecular-mass cationic-active matter; status code is 9599; successor is ISO 2871-1:2010; withdrawn / published date is 1988-10-20, recorded from its source on 2026-08-05. - **Identifier:** ISO 2871-1:1988 _(verified: appears in the quote below)_ - **Item title:** Surface active agents — Detergents — Determination of cationic-active matter content — Part 1: High-molecular-mass cationic-active matter _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 2871-1:2010 - **Withdrawn / published date:** 1988-10-20 _(verified: appears in the quote below)_ ## What the source says > 7887,IS,,ISO 2871-1:1988,Surface active agents — Detergents — Determination of cationic-active matter content — Part 1: High-molecular-mass cationic-active matter,Agents de surface — Détergents — Détermination de la teneur en matière active cationique — Partie 1: Matière active cationique à haute masse moléculaire,1988-10-20,1,['71.100.40'],ISO/TC 91,9599,[7885],[53739],"['en','fr']",2,"
An aliquot portion of a standard solution of sodium lauryl sulfate is titrated with a solution of the test sample, according to the direct two-phase titration procedure describes in ISO 2271. The method is applicable to solids or to aqueous solutions of the active material. The relative molecular mass of t ## 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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).