Објављен
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.
ОБЈАВЉЕН
ISO 2869:1973
90.93
Одлука о потврђивању стандарда
29. 8. 2022.
Površinski aktivne materije - Deterdženti - Anjonaktivne materije koje hidrolizuju u alkalnoj sredini - Određivanje hidrolizujućih i nehidrolizujućih anjonaktivnih materija (identičan sa ISO 2869:1973)
90.93 Одлука о потврђивању стандарда