Registration number (WIID)Project No.TitleStatus
10995LVS EN 1899-1:1998Water quality - Determination of biochemical oxygen demand after n days (BODn) - Part 1: Dilution and seeding method with allylthiourea addition (ISO 5815:1989, modified) 
76122LVS EN 18110:2025Water quality – Assessment of damage to fish passing through pumping stations and hydropower plants – Methods based on live fish passage survival test and blade strike modelStandarts spēkā
78134LVS EN 18025:2025Water quality - Guidance standard on a strategic approach to river restorationStandarts spēkā
73269LVS EN 17899:2024Water quality - Spectrophotometric determination of chlorophyll-a content by ethanol extraction for the routine monitoring of water qualityStandarts spēkā
72997LVS EN 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
72999LVS EN 17805:2023Water quality - Sampling, capture and preservation of environmental DNA from waterStandarts spēkā
60432LVS EN 17233:2021Water quality - Guidance for assessing the efficiency and related metrics of fish passage solutions using telemetryStandarts spēkā
62541LVS EN 17218:2019Water quality - Guidance on sampling of mesozooplankton from marine and brackish water using meshStandarts spēkā
64275LVS EN 17211:2020Water quality - Guidance on mapping of seagrasses and macroalgae in the eulittoral zoneStandarts spēkā
62542LVS EN 17204:2019Water quality - Guidance on analysis of mesozooplankton from marine and brackish watersStandarts spēkā
Displaying 331-340 of 814 results.