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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 CEN/TC 223/WG 4

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DIN EN 13650	2025-10	Draft standard	Soil improvers and growing media - Digestion by aqua regia for subsequent determination of elements; German and English version prEN 13650:2025 More	Order from DIN Media
DIN EN 13651	2002-01	Standards	Soil improvers and growing media - Extraction of calcium chloride/DTPA (CAT) soluble nutrients; German version EN 13651:2001 More	Order from DIN Media
DIN EN 13651	2025-11	Draft standard	Soil improvers and growing media - Extraction of calcium chloride/DTPA (CAT) soluble nutrients; German and English version prEN 13651:2025 More	Order from DIN Media
DIN EN 13652	2002-01	Standards	Soil improvers and growing media - Extraction of water soluble nutrients and elements; German version EN 13652:2001 More	Order from DIN Media
DIN EN 13654-1	2002-01	Standards	Soil improvers and growing media - Determination of nitrogen - Part 1: Modified Kjeldahl method; German version EN 13654-1:2001 More	Order from DIN Media
DIN EN 13654-1	2025-11	Draft standard	Soil improvers and growing media - Determination of nitrogen - Part 1: Modified Kjeldahl method; German and English version prEN 13654-1:2025 More	Order from DIN Media
DIN EN 13654-2	2002-01	Standards	Soil improvers and growing media - Determination of nitrogen - Part 2: Dumas method; German version EN 13654-2:2001 More	Order from DIN Media
DIN EN 13654-2	2025-11	Draft standard	Soil improvers and growing media - Determination of nitrogen - Part 2: Dumas method; German and English version prEN 13654-2:2025 More	Order from DIN Media
DIN EN 15428	2007-11	Standards	Soil improvers and growing media - Determination of particle size distribution; German version EN 15428:2007 More	Order from DIN Media
DIN EN 16086-1	2012-01	Standards	Soil improvers and growing media - Determination of plant response - Part 1: Pot growth test with Chinese cabbage; German version EN 16086-1:2011 More	Order from DIN Media

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