CEN/TC 230
| Registration number (WIID) | Project No. | Title | Status |
|---|---|---|---|
| 23981 | LVS EN 14996:2006 | Water quality - Guidance on assuring the quality of biological and ecological assessments in the aquatic environment | Standarts spēkā |
| 72999 | EN 17805:2023 | Water quality - Sampling, capture and preservation of environmental DNA from water | Standarts spēkā |
| 30865 | LVS EN ISO 11348-1:2009 | Water quality - Determination of the inhibitory effect of water samples on the light emission of Vibrio fischeri (Luminescent bacteria test) - Part 1: Method using freshly prepared bacteria (ISO 11348-1:2007) | Standarts spēkā |
| 77977 | LVS EN ISO 18724:2025 | Water quality - Determination of dissolved chromium(VI) in water - Photometric method (ISO 18724:2025) | |
| 10973 | LVS EN 26461-1:1993 | Water quality - Detection and enumeration of the spores of sulfite-reducing anaerobes (clostridia) - Part 1: Method by enrichment in a liquid medium (ISO 6461-1:1986) | |
| 10953 | LVS EN 26777:1993 | Water quality - Determination of nitrite - Molecular absorption spectrometric method (ISO 6777:1984) | |
| 10995 | LVS EN 1899-1:1998 | Water quality - Determination of biochemical oxygen demand after n days (BODn) - Part 1: Dilution and seeding method with allylthiourea addition (ISO 5815:1989, modified) | |
| 11087 | LVS EN ISO 7980:2000 | Water quality - Determination of calcium and magnesium - Atomic absorption spectrometric method (ISO 7980:1986) | |
| 22922 | LVS EN ISO 11732:2005 | Water quality - Determination of ammonium nitrogen - Method by flow analysis (CFA and FIA) and spectrometric detection (ISO 11732:2005) | |
| 21813 | LVS EN ISO 15681-1:2004 | Water 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) |
Displaying 801-810 of 814 results.