Registration number (WIID)Project No.TitleStatus
29074LVS EN 15451:2008Fertilizers - Determination of chelating agents - Determination of iron chelated by EDDHSA by ion pair chromatographyStandarts spēkā
13028LVS EN 13366:2002 AFertilizers - Treatment with a cation exchange resin for the determination of the chelated micro-nutrient content and of the chelated fraction of micro-nutrientsStandarts spēkā
40795LVS EN 13368-3:2018Fertilizers - Determination of chelating agents in fertilizers by chromatography - Part 3: Determination of [S,S]-EDDS by ion pair chromatographyStandarts spēkā
41765LVS EN 14984:2016Liming materials - Determination of product effect on soil pH - Soil incubation methodStandarts spēkā
38093LVS EN 16195:2013Fertilizers - Determination of chlorides in the absence of organic materialStandarts spēkā
36897LVS EN 13368-1:2014Fertilizers - Determination of chelating agents in fertilizers by chromatography - Part 1: Determination of EDTA, HEEDTA and DTPA by ion chromatographyStandarts spēkā
31334LVS EN 16075:2012Fertilizers - Determination of N-(2-nitrophenyl)phosphoric triamide (2-NPT) in urea and fertilizers containing urea - Method using high-performance liquid chromatography (HPLC)Standarts spēkā
38092LVS EN 16199:2013Fertilizers - Determination of the sodium extracted by flame emission spectrometryStandarts spēkā
30752LVS EN 15559:2009Fertilizers - Determination of nitric and ammoniacal nitrogen according to ArndStandarts spēkā
29075LVS EN 15452:2008Fertilizers - Determination of chelating agents - Determination of iron chelated by o, p-EDDHA by reversed phase HPLCStandarts spēkā
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