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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 13037	2012-01	Standards	Soil improvers and growing media - Determination of pH; German version EN 13037:2011 More	Order from DIN Media
DIN EN 13037	2025-10	Draft standard	Soil improvers and growing media - Determination of pH; German and English version prEN 13037:2025 More	Order from DIN Media
DIN EN 13038	2012-01	Standards	Soil improvers and growing media - Determination of electrical conductivity; German version EN 13038:2011 More	Order from DIN Media
DIN EN 13038	2025-10	Draft standard	Soil improvers and growing media - Determination of electrical conductivity; German and English version prEN 13038:2025 More	Order from DIN Media
DIN EN 13039	2012-01	Standards	Soil improvers and growing media - Determination of organic matter content and ash; German version EN 13039:2011 More	Order from DIN Media
DIN EN 13039	2025-10	Draft standard	Soil improvers and growing media - Determination of organic matter content and ash; German and English version prEN 13039:2025 More	Order from DIN Media
DIN EN 13040	2008-01	Standards	Soil improvers and growing media - Sample preparation for chemical and physical tests, determination of dry matter content, moisture content and laboratory compacted bulk density; German version EN 13040:2007 More	Order from DIN Media
DIN EN 13040-1	2025-10	Draft standard	Soil improvers and growing media - Sample preparation - Part 1: Sample preparation for chemical and physical tests, determination of dry matter content, moisture content and laboratory bulk density; German and English version prEN 13040-1:2025 More	Order from DIN Media
DIN EN 13041	2012-01	Standards	Soil improvers and growing media - Determination of physical properties - Dry bulk density, air volume, water volume, shrinkage value and total pore space; German version EN 13041:2011 More	Order from DIN Media
DIN EN 13650	2002-01	Standards	Soil improvers and growing media - Extraction of aqua regia soluble elements; German version EN 13650:2001 More	Order from DIN Media

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