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ISO/DIS 25187
Traditional Chinese medicine - Minimum requirements for robust TLC identification methods applicable for medicinal herbs and natural products
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
prEN 17765
Organic and organo-mineral fertilizers - Determination of biuret content by high-performance liquid chromatography (HPLC)
DIN EN 17761
Inorganic fertilizers - Determination of the chloride content in ammonium nitrate fertilizers of high nitrogen content
prEN 17761
Inorganic fertilizers - Determination of the chloride content in ammonium nitrate fertilizers of high nitrogen content
prEN 17756
Fertilizers, liming materials and inhibitors - Determination of the chloride content
DIN EN 17756
Fertilizers, liming materials and inhibitors - Determination of the chloride content
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 17779
Organo-mineral fertilizers - Extraction of phosphorus soluble in a neutral ammonium citrate solution; German and English version prEN 17779:2026
prEN 17779
Organo-mineral fertilizers - Extraction of phosphorus soluble in a neutral ammonium citrate solution
