Registration number (WIID)Project No.TitleStatus
70233EN 15936:2022Sludge, treated biowaste, soil and waste - Determination of total organic carbon (TOC) by dry combustionStandarts spēkā
39652EN ISO 18772:2014Soil quality - Guidance on leaching procedures for subsequent chemical and ecotoxicological testing of soils and soil materials (ISO 18772:2008)Standarts spēkā
70503EN ISO 20130:2020Soil quality - Measurement of enzyme activity patterns in soil samples using colorimetric substrates in micro-well plates (ISO 20130:2018)Standarts spēkā
67821EN 15935:2021Soil, waste, treated biowaste and sludge - Determination of loss on ignitionStandarts spēkā
76892LVS EN ISO 18227:2025Environmental solid matrices - Determination of elemental composition by X-ray fluorescence spectrometry (ISO 18227:2025)Standarts spēkā
79453EN ISO 11465:2025Sludge and solid environmental matrices - Determination of dry residue or water content and calculation of the dry matter fraction on a mass basis (ISO 11465:2025)Standarts spēkā
68016LVS EN 17505:2023Soil and waste characterization - Temperature dependent differentiation of total carbon (TOC400, ROC, TIC900)Standarts spēkā
76892EN ISO 18227:2025Environmental solid matrices - Determination of elemental composition by X-ray fluorescence spectrometry (ISO 18227:2025)Standarts spēkā
70503LVS EN ISO 20130:2020Soil quality - Measurement of enzyme activity patterns in soil samples using colorimetric substrates in micro-well plates (ISO 20130:2018)Standarts spēkā
70241LVS EN ISO 10390:2022Soil, treated biowaste and sludge - Determination of pH (ISO 10390:2021)Standarts spēkā
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