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ISO 2271:1989PublishedSurface active agents — Detergents — Determination of anionic-active matter by manual or mechanical direct two-phase titration procedureISO 2272:1989PublishedSurface active agents — Soaps — Determination of low contents of free glycerol by molecular absorption spectrometryISO 2456:1986PublishedSurface active agents — Water used as a solvent for tests — Specification and test methodsISO 2868:1973PublishedSurface active agents — Detergents — Anionic-active matter stable to acid hydrolysis — Determination of trace amountsISO 2869:1973PublishedSurface active agents — Detergents — Anionic-active matter hydrolyzable under alkaline conditions — Determination of hydrolyzable and non-hydrolyzable anionic-active matterISO 2870:2009PublishedSurface active agents — Detergents — Determination of anionic-active matter hydrolysable and non-hydrolysable under acid conditionsISO 2871-1:2010PublishedSurface active agents — Detergents — Determination of cationic-active matter content — Part 1: High-molecular-mass cationic-active matterISO 2871-2:2010PublishedSurface active agents — Detergents — Determination of cationic-active matter content — Part 2: Cationic-active matter of low molecular mass (between 200 and 500)ISO 4198:1984PublishedSurface active agents — Detergents for hand dishwashing — Guide for comparative testing of performanceISO 4311:1979PublishedAnionic and non-ionic surface active agents — Determination of the critical micellization concentration — Method by measuring surface tension with a plate, stirrup or ringISO 4312:1989PublishedSurface active agents — Evaluation of certain effects of laundering — Methods of analysis and test for unsoiled cotton control clothISO 4313:1976PublishedWashing powders — Determination of total phosphorus(V) oxide content — Quinoline phosphomolybdate gravimetric methodISO 4314:1977PublishedSurface active agents — Determination of free alkalinity or free acidity — Titrimetric methodISO 4315:1977PublishedSurface active agents — Determination of alkalinity — Titrimetric methodISO 4316:1977PublishedSurface active agents — Determination of pH of aqueous solutions — Potentiometric methodISO 4317:2011PublishedSurface-active agents and detergents — Determination of water content — Karl Fischer methodsISO 4318:1989PublishedSurface active agents and soaps — Determination of water content — Azeotropic distillation methodISO 4319:1977PublishedSurface active agents — Detergents for washing fabrics — Guide for comparative testing of performanceISO 4320:1977PublishedNon-ionic surface active agents — Determination of cloud point index — Volumetric methodISO 4321:1977PublishedWashing powders — Determination of active oxygen content — Titrimetric methodISO 4322:1977PublishedNon-ionic surface active agents — Determination of sulphated ash — Gravimetric methodISO 4323:2025PublishedSurface active agents — Soaps — Determination of chloride content by potentiometric methodISO 4324:1977PublishedSurface active agents — Powders and granules — Measurement of the angle of reposeISO 4325:1990PublishedSoaps and detergents — Determination of chelating agent content — Titrimetric methodISO 4326:1980PublishedNon-ionic surface active agents — Polyethoxylated derivatives — Determination of hydroxyl value — Acetic anhydride method