Reference number
ISO 2869:1973
ISO 2869:1973
© ISO 2025
International Standard
ISO 2869:1973
Surface active agents — Detergents — Anionic-active matter hydrolyzable under alkaline conditions — Determination of hydrolyzable and non-hydrolyzable anionic-active matter
Edition 1
1973-12
1973-12
ISO 2869:1973
7882
Published
(Edition 1, 1973)
This publication was last reviewed and confirmed in 2022.
Therefore this version remains current.
Abstract
The determination is carried out as follows: Titration of an aliquiot portion of a sample solution with benzethonium chloride solution according to the direct two-phase titration procedure describes in ISO 2271. Hydrolysis by refluxing under alkaline conditions of a second aliquot portion of the sample solution. Titration of unhydrolyzed anionic-active matter with benzethonium chloride solution as before. Calculation of the contents of hydrolyzable and non-hydrolyzable anionic-active matter from the results obtained.