Registration number (WIID)Project No.TitleStatus
21813LVS EN ISO 15681-1:2004Water quality - Determination of orthophosphate and total phosphorus contents by flow analysis (FIA and CFA) - Part 1: Method by flow injection analysis (FIA) (ISO 15681-1:2003) 
10953LVS EN 26777:1993Water quality - Determination of nitrite - Molecular absorption spectrometric method (ISO 6777:1984) 
77819LVS EN ISO 22032:2026Water quality - Determination of polybrominated diphenyl ethers (PBDE) in sediment, suspended particulate matter and biota - Method using gas chromatography coupled with tandem mass spectrometry (GC-MS/MS) or with high resolution mass spectrometry (GC-HRMS) (ISO 22032:2026) 
68125LVS EN ISO 13164-1:2020Water quality - Radon-222 - Part 1: General principles (ISO 13164-1:2013, Correction version 2013-11-15)Standarts spēkā
11034LVS EN ISO 11969:2001Water quality - Determination of arsenic - Atomic absorption spectrometric method (hydride technique)Standarts spēkā
65985LVS EN ISO 13161:2020Water quality - Polonium 210 - Test method using alpha spectrometry (ISO 13161:2020)Standarts spēkā
75274LVS EN ISO 13165-3:2024Water quality - Radium-226 - Part 3: Test method using coprecipitation and gamma-ray spectrometry (ISO 13165-3:2024)Standarts spēkā
62443LVS EN 17136:2019Water quality - Guidance on field and laboratory procedures for quantitative analysis and identification of macroinvertebrates from inland surface watersStandarts spēkā
29987EN ISO 10870:2012Water quality - Guidelines for the selection of sampling methods and devices for benthic macroinvertebrates in fresh waters (ISO 10870:2012)Standarts spēkā
69937LVS EN ISO 10703:2021Water quality - Gamma-ray emitting radionuclides - Test method using high resolution gamma-ray spectrometry (ISO 10703:2021)Standarts spēkā
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