CEN/TC 230
| Registration number (WIID) | Project No. | Title | Status |
|---|---|---|---|
| 81888 | EN ISO 23697-1:2025 | Water 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 |
| 81885 | EN ISO 23695:2025 | Water quality - Determination of ammonium nitrogen in water - Small-scale sealed tube method (ISO 23695:2023) | Standarts spēkā |
| 81887 | EN ISO 23696-2:2025 | Water quality - Determination of nitrate in water using small-scale sealed tubes - Part 2: Chromotropic acid colour reaction (ISO 23696-2:2023) | Standarts spēkā |
| 11103 | LVS EN ISO 17993:2004 | Water quality - Determination of 15 polynuclear aromatic hydrocarbons (PAH) in water by HPLC with fluorescence detection after liquid-liquid extraction | Standarts spēkā |
| 21719 | LVS EN ISO 18856:2005 | Water quality - Determination of selected phthalates using gas chromatography/mass spectrometry | Standarts spēkā |
| 23980 | LVS EN 15110:2006 | Water quality - Guidance standard for the sampling of zooplankton from standing waters | Standarts spēkā |
| 11108 | LVS EN ISO 17353:2005 | Water quality - Determination of selected organotin compounds - Gas chromatographic method | Standarts spēkā |
| 20965 | LVS EN ISO 9509:2006 | Water quality - Toxicity test for assessing the inhibition of nitrification of activated sludge microorganisms | Standarts spēkā |
| 11067 | LVS EN ISO 15061:2002 | Water quality - Determination of dissolved bromate - Method by liquid chromatography of ions | Standarts spēkā |
| 79407 | EN ISO 10705-3:2024 | Water quality - Detection and enumeration of bacteriophages - Part 3: Validation of methods for concentration of bacteriophages from water (ISO 10705-3:2003) | Standarts spēkā |
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