Registration number (WIID)Project No.TitleStatus
35948LVS EN 15926:2012Fertilizers - Extraction of water soluble sulfur where the sulfur is in various formsStandarts spēkā
35947LVS EN 15961:2012Fertilizers - Extraction of water-soluble calcium, magnesium, sodium and sulfur in the form of sulfatesAtcelts
35947EN 15961:2011Fertilizers - Extraction of water-soluble calcium, magnesium, sodium and sulfur in the form of sulfatesAtcelts
35946LVS EN 15925:2012Fertilizers - Extraction of total sulfur present in various formsStandarts spēkā
35946EN 15925:2011Fertilizers - Extraction of total sulfur present in various formsIzstrādē
35945EN 15956:2011Fertilizers - Extraction of phosphorus soluble in mineral acidsIzstrādē
35945LVS EN 15956:2012Fertilizers - Extraction of phosphorus soluble in mineral acidsStandarts spēkā
35688LVS EN 15922:2011Fertilizers - Extraction of soluble phosphorus according to Petermann at ambient temperatureStandarts spēkā
35688EN 15922:2011Fertilizers - Extraction of phosphorus according to Petermann at ambient temperatureIzstrādē
35687LVS EN 15923:2011Fertilizers - Extraction of phosphorus soluble in Joulie's alcaline ammonium citrateStandarts spēkā
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