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ISO 2271:1989

Surface active agents -- Detergents -- Determination of anionic-active matter by manual or mechanical direct two-phase titration procedure
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ISO 2271:1989

Surface active agents -- Detergents -- Determination of anionic-active matter by manual or mechanical direct two-phase titration procedure

PUBLISH DATE 1989
ISO 2271:1989

The substance is determined in a medium consisting of an aqueous and a chloroform phase by titration with a standard volumetric cationic-active solution (benzethonium chloride) in the presence of an indicator which consists of a mixture of cationic dye (dimidium bromide) and an anionic dye (acid blue 1).

The method is applicable to solids or to aqueous solutions of the active material. The relative molecular mass of the anionic active matter has to be known.

The method is not applicable if cationic surface active agents are present.

SDO ISO: International Organization for Standardization
Document Number ISO 2271
Publication Date Oct. 15, 1989
Language en - English
Page Count
Revision Level
Supercedes
Committee ISO TC 91
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