DIN Standards Committee Materials Testing
DIN EN ISO 2871-1
Surface active agents - Detergents - Determination of cationic-active matter content - Part 1: High-molecular-mass cationic-active matter (ISO 2871-1:2010); German version EN ISO 2871-1:2010
Tenside - Waschmittel - Bestimmung des Gehaltes der kationaktiven Substanz - Teil 1: Hochmolekulare kationaktive Substanz (ISO 2871-1:2010); Deutsche Fassung EN ISO 2871-1:2010
Overview
This standard specifies a method for the determination of high-molecular-mass cationic-active matter. It is applicable to solids or to aqueous solutions of the active material. The relative molecular mass of the cationic-active matter must be known or previously determined if its content is expressed as a percentage by mass. This standard is not applicable if anion-active compounds are present. For the determination of the cationic-active matter an aliquot portion of a standard solution of sodium lauryl sulphate is titrated with a solution of the test sample, according to the two-phase titration procedure specified in ISO 2271. EN ISO 2781-1 has been prepared by Technical Committee ISO/TC 91 "Surface active agents" (secretariat: ISIRI, Iran), in collaboration with Technical Committee CEN/TC 276 "Surface active agents" (secretariat: AFNOR, France). The responsible German Committee is Working Committee NA 062-05-62 AA "Analytik von Tensiden" ("Analytics of surfactants") of NMP.
Document: references other documents
Responsible national committee
NA 062-05-62 AA - Analytics of surfactants
Responsible european committee
CEN/TC 276 - Surface active agents
