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NA 057

DIN Standards Committee Food and Agricultural Products

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Drafts of NA 057

Number: 140

DIN EN 18257 2025-11 Soil improvers and growing media - Determination of chromium(VI); German and English version prEN 18257:2025 More 
DIN EN 18259 2025-11 Soil improvers and growing media - Determination of aqua regia soluble elements; German and English version prEN 18259:2025 More 
DIN EN ISO 21569-1 2025-11 Horizontal methods for molecular biomarker analysis - Methods of analysis for the detection of genetically modified organisms and derived products - Part 1: Qualitative nucleic acid based methods (ISO/DIS 21569-1:2025); German and English version prEN ISO 21569-1:2025 More 
DIN EN ISO 16634-2 2025-11 Food products - Determination of the total nitrogen content by combustion according to the Dumas principle and calculation of the crude protein content - Part 2: Cereals, pulses and cereal coproducts (ISO/DIS 16634-2:2025); German and English version prEN ISO 16634-2:2025 More 
DIN EN 13037 2025-10 Soil improvers and growing media - Determination of pH; German and English version prEN 13037:2025 More 
DIN EN 13039 2025-10 Soil improvers and growing media - Determination of organic matter content and ash; German and English version prEN 13039:2025 More 
DIN EN 13038 2025-10 Soil improvers and growing media - Determination of electrical conductivity; German and English version prEN 13038:2025 More 
DIN EN 18256 2025-10 Digestate - Determination of the residual biogas potential; German and English version prEN 18256:2025 More 
DIN EN 13040-1 2025-10 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 
DIN EN 13650 2025-10 Soil improvers and growing media - Digestion by aqua regia for subsequent determination of elements; German and English version prEN 13650:2025 More 

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