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NA 057

DIN Standards Committee Food and Agricultural Products

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Drafts of NA 057

Number: 127

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 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 
DIN EN 17773 2026-02 Organic and organo-mineral fertilizers - Determination of the dry matter content; German and English version prEN 17773:2026 More 
DIN EN 18300 2026-02 Soil improvers and growing media - Methods for the determination of cadmium, lead, nickel, hexavalent chromium, mercury, inorganic arsenic, phosphonates, total chromium and bioavailable nickel content; German and English version prEN 18300:2026 More 
DIN EN 17728 2026-02 Organic soil improvers - Methods for the determination of pH, electrical conductivity, organic carbon content and organic nitrogen content; German and English version prEN 17728:2026 More 
DIN EN 17730 2026-02 Soil improvers and growing media - Methods for the determination of PAH₁₆, macroscopic impurities above 2 mm, the temperature-time profiles, oxygen uptake rate, self-heating factor and residual biogas potential in compost and digestate when used in fertilizing products; German and English version prEN 17730:2026 More 
DIN EN 17731 2026-02 Growing media - Methods for the determination of the electrical conductivity, pH, dry matter, quantity, total copper and zinc content, water soluble chloride content, and CaCl₂/DTPA extractable nitrogen, P₂O₅ and K₂O content; German and English version prEN 17731:2026 More 

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