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ISO 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 methodISO 4327:1979PublishedNon-ionic surface active agents — Polyalkoxylated derivatives — Determination of hydroxyl value — Phthalic anhydride methodISO 4333:2022PublishedTextiles — Determination of reduction activity of specific proteins derived from pollen, mite and other sources on textile productsISO/IEC TR 4339:2022PublishedInformation technology for learning, education and training — Reference model for information and communications technology (ICT) evaluation in educationISO/TR 4340:2022PublishedWater aggressiveness evaluation and optimized lining choiceISO 4341:1978PublishedInformation processing — Magnetic tape cassette and cartridge labelling and file structure for information interchangeISO 4342:1985PublishedNumerical control of machines — NC processor input — Basic part program reference languageISO 4343:2000PublishedIndustrial automation systems — Numerical control of machines — NC processor output — Post processor commandsISO 4344:2022PublishedSteel wire ropes for lifts — Minimum requirementsISO 4345:2025PublishedSteel wire ropes — Fibre main cores — SpecificationsISO 4346:1977PublishedSteel wire ropes for general purposes — Lubricants — Basic requirementsISO 4347:2015PublishedLeaf chains, clevises and sheaves — Dimensions, measuring forces, tensile strengths and dynamic strengths