CEN/TC 230

Registration number (WIID)Project No.TitleStatus
72997EN 17892:2024Water quality - Determination of selected per- and polyfluoroalkyl substances in drinking water - Method using liquid chromatography/tandem-mass spectrometry (LC-MS/MS)Standarts spēkā
72995LVS EN ISO 10872:2021Water and soil quality - Determination of the toxic effect of sediment and soil samples on growth, fertility and reproduction of Caenorhabditis elegans (Nematoda) (ISO 10872:2020)Standarts spēkā
81886EN ISO 23696-1:2025Water quality - Determination of nitrate in water using small-scale sealed tubes - Part 1: Dimethylphenol colour reaction (ISO 23696-1:2023)Standarts spēkā
81889EN ISO 23697-2:2025Water quality - Determination of total bound nitrogen (ST-TNb) in water using small-scale sealed tubes - Part 2: Chromotropic acid colour reaction (ISO 23697-2:2023)Standarts spēkā
79409EN 13946:2025Water quality - Guidance standard for the routine sampling and preparation of benthic diatoms from rivers and lakesStandarts spēkā
78021EN ISO 7899-3:2025Water quality - Enumeration of intestinal enterococci - Part 3: Most probable number method (ISO 7899‑3:2025)Standarts spēkā
81888EN ISO 23697-1:2025Water quality - Determination of total bound nitrogen (ST-TNb) in water using small-scale sealed tubes - Part 1: Dimethylphenol colour reaction (ISO 23697-1:2023)Standarts spēkā
81885EN ISO 23695:2025Water quality - Determination of ammonium nitrogen in water - Small-scale sealed tube method (ISO 23695:2023)Standarts spēkā
81887EN ISO 23696-2:2025Water quality - Determination of nitrate in water using small-scale sealed tubes - Part 2: Chromotropic acid colour reaction (ISO 23696-2:2023)Standarts spēkā
75274EN ISO 13165-3:2024Water quality - Radium-226 - Part 3: Test method using coprecipitation and gamma-ray spectrometry (ISO 13165-3:2024)Standarts spēkā
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