Registration number (WIID)Project No.TitleStatus
27098EN 15688:2008Fertilizers - Determination of urease inhibitor N-(n-butyl)thiophosphoric triamide (NBPT) using high-performance liquid chromatography (HPLC)Izstrādē
73856CEN/TS 17790:2022Organo-mineral fertilizers - Determination of the chelated micronutrient content and the chelated fraction of micronutrients by treatment with a cation exchange resinIzstrādē
71680CEN/TS 17768:2022Organic and organo-mineral fertilizers - Digestion by aqua regia for subsequent determination of elementsIzstrādē
71681CEN/TS 17769:2022Organic and organo-mineral fertilizers - Determination of the mercury contentIzstrādē
71678CEN/TS 17766:2022Organic and organo-mineral fertilizers - Extraction by water for subsequent determination of elementsIzstrādē
71686CEN/TS 17774:2022Organic and organo-mineral fertilizers - Determination of the content of specific elements by ICP-AES after extraction by waterIzstrādē
71689CEN/TS 17777:2022Organic and organo-mineral fertilizers – Determination of specific elementsIzstrādē
71682CEN/TS 17770:2022Organic and organo-mineral fertilizers - Determination of the total content of specific elements by ICP-AES after digestion by aqua regiaIzstrādē
29085CEN/TS 16490:2013Fertilizers - Comparison of the CEN/TC 260/WG 7 ring test results with tolerances given in the Regulation (EC) Nr 2003/2003 Annex II and conclusionsIzstrādē
59361EN 17090:2018Fertilizers - Determination of nitrification inhibitor DMPSA in fertilizers - Method using high-performance liquid chromatography (HPLC)Izstrādē
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