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DIN EN 17756
Fertilizers, liming materials and inhibitors - Determination of the chloride content
DIN EN 17765
Organic and organo-mineral fertilizers - Determination of biuret content by high-performance liquid chromatography (HPLC); German and English version prEN 17765:2026
DIN EN 17766
Organic and organo-mineral fertilizers - Extraction by water for subsequent determination of elements; German and English version prEN 17766:2026
DIN EN 17767
Organo-mineral fertilizers - Extraction of phosphorus by formic acid; German and English version prEN 17767:2026
DIN EN 17768
Organic and organo-mineral fertilizers - Digestion by aqua regia for subsequent determination of elements; German and English version prEN 17768:2026
DIN EN 17769
Organic and organo-mineral fertilizers - Determination of the mercury content; German and English version prEN 17769:2026
DIN EN 17770
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
DIN EN 17771
Organic and organo-mineral fertilizers - Determination of the nitrogen content
DIN EN 17772
Organic and organo-mineral fertilizers - Determination of specific parameters; German and English version prEN 17772:2026
DIN EN 17773
Organic and organo-mineral fertilizers - Determination of the dry matter content; German and English version prEN 17773:2026
