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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 18316 2026-03 Inorganic fertilizers - Determination of the total K2O content; German and English version prEN 18316:2026 More 
DIN EN 18319 2026-03 Fertilizers, liming materials and inhibitors - Determination of the phosphonates content by ion chromatography and conductivity detection (IC-CD); German and English version prEN 18319:2026 More 
DIN EN 17758 2026-03 Fertilizers and liming materials - Determination of the chloride content by potentiometric titration; German and English version prEN 17758:2026 More 
DIN EN 17403 2026-03 Inorganic fertilizers - Determination of cold water insoluble nitrogen and hot water insoluble nitrogen in solid urea formaldehyde and methylene urea slow-release fertilizers and determination of the solubility of nutrient polymers in phosphate buffer solution with a pH of 7,5 at 100 °C; German and English version prEN 17403:2026 More 
DIN EN 15478 2026-03 Inorganic fertilizers - Determination of total nitrogen in urea, methylene-urea and urea formaldehyde; German and English version prEN 15478:2026 More 
DIN EN 18317 2026-03 Organo-mineral fertilizers - Determination of the N-(n-butyl)thiophosphoric triamide (NBPT) urease inhibitor content; German and English version prEN 18317:2026 More 
DIN EN 17770 2026-02 Organic and organo-mineral fertilizers - Determination of the total content of specific elements by ICP-AES after digestion by aqua regia; German and English version prEN 17770:2026 More 
DIN EN 17776 2026-02 Organic and organo-mineral fertilizers - Determination of the total organic carbon (TOC) content by dry combustion; German and English version prEN 17776:2026 More 
DIN EN 17767 2026-02 Organo-mineral fertilizers - Extraction of phosphorus by formic acid; German and English version prEN 17767:2026 More 
DIN EN 17768 2026-02 Organic and organo-mineral fertilizers - Digestion by aqua regia for subsequent determination of elements; German and English version prEN 17768:2026 More 

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