• Hydrogen Technologies Standards form the basic framework for market ramp-up

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  • Climate change Standards and specifications support climate targets

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  • Smart Farming Standards and specifications are drivers for the digitalization of agriculture

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Publications of ISO/TC 91

ISO 4319 1977-07 Standards Surface active agents; Detergents for washing fabrics; Guide for comparative testing of performance More  Order from DIN Media
ISO 4320 1977-02 Standards Non-ionic surface active agents; Determination of cloud point index; Volumetric method More  Order from DIN Media
ISO 4321 1977-09 Standards Washing powders; Determination of active oxygen content; Titrimetric method More  Order from DIN Media
ISO 4322 1977-05 Standards Non-ionic surface active agents; Determination of sulphated ash; Gravimetric method More  Order from DIN Media
ISO 4324 1977-09 Standards Surface active agents; Powders and granules; Measurement of the angle of repose More  Order from DIN Media
ISO 4325 1990-04 Standards Soaps and detergents; determination of chelating agent content; titrimetric method More  Order from DIN Media
ISO 4326 1980-03 Standards Non-ionic surface active agents; Polyethoxylated derivatives; Determination of hydroxyl value; Acetic anhydride method More  Order from DIN Media
ISO 4327 1979-12 Standards Non-ionic surface active agents; Polyalkoxylated derivatives; Determination of hydroxyl value; Phthalic anhydride method More  Order from DIN Media
ISO 6121 1988-06 Standards Surface active agents; technical alkane sulfonates; determination of alkane monosulfonates content by direct two-phase titration More  Order from DIN Media
ISO 6122 1978-08 Standards Surface active agents; Technical alkane sulphonates; Determination of total alkane sulphonates content More  Order from DIN Media

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