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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

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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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