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NA 057

DIN Standards Committee Food and Agricultural Products

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Drafts of NA 057

Number: 139

DIN EN 15957 2025-12 Inorganic fertilizers - Extraction of phosphorus which is soluble in neutral ammonium citrate; German and English version prEN 15957:2026 More 
DIN EN ISO 24223 2025-12 Milk and milk products - Guidance on sample preparation for physical and chemical testing (ISO/DIS 24223:2025); German and English version prEN ISO 24223:2025 More 
DIN EN 17752 2025-12 Inorganic fertilizers - Determination of specific inhibiting compounds; German and English version prEN 17752:2026 More 
DIN EN 15960 2025-12 Inorganic fertilizers - Extraction of total calcium, total magnesium, total sodium and total sulfur in the forms of sulfates; German and English version prEN 15960:2025 More 
DIN EN 15961 2025-12 Inorganic fertilizers - Extraction of water-soluble calcium, magnesium, sodium and sulfur in the form of sulfates; German and English version prEN 15961:2025 More 
DIN EN 17729 2025-12 Soil improvers - Methods for the determination of the dry matter, quantity, copper, zinc, chloride, nitrogen, P2O5 and K2O content; German and English version prEN 17729:2025 More 
DIN EN 18292 2025-12 Inorganic fertilizers - Determination of the dry matter content; German and English version prEN 18292:2026 More 
DIN EN 13651 2025-11 Soil improvers and growing media - Extraction of calcium chloride/DTPA (CAT) soluble nutrients; German and English version prEN 13651:2025 More 
DIN EN 18261 2025-11 Compost and digestate - Determination of polycyclic aromatic hydrocarbons (PAH) by gas chromatography (GC) and high performance liquid chromatography (HPLC); German and English version prEN 18261:2025 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 

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