Registration number (WIID)Project No.TitleStatus
82077prEN 17766Organic and organo-mineral fertilizers - Extraction by water for subsequent determination of elementsAptauja
82076prEN 17765Organic and organo-mineral fertilizers - Determination of biuret content by high-performance liquid chromatography (HPLC)Aptauja
82075prEN 17771Organic and organo-mineral fertilizers - Determination of the nitrogen contentIzstrādē
82074prEN 17770Organic and organo-mineral fertilizers - Determination of the total content of specific elements by ICP-AES after digestion by aqua regiaAptauja
82073prEN 17767Organo-mineral fertilizers - Extraction of phosphorus by formic acidAptauja
81618prEN 15961Inorganic fertilizers - Extraction of water-soluble calcium, magnesium, sodium and sulfur in the form of sulfatesAptauja
81617prEN 15957Inorganic fertilizers - Extraction of phosphorus which is soluble in neutral ammonium citrateAptauja
81616prEN 15960Inorganic fertilizers - Extraction of total calcium, total magnesium, total sodium and total sulfur in the forms of sulfatesAptauja
81615prEN 18292Inorganic fertilizers - Determination of the dry matter contentAptauja
81614prEN 15925Inorganic fertilizers - Extraction of total sulfur present in various formsAptauja
Displaying 21-30 of 595 results.