CEN/TC 230
| Registration number (WIID) | Project No. | Title | Status |
|---|---|---|---|
| 21815 | EN 12260:2003 | Water quality - Determination of nitrogen - Determination of bound nitrogen (TNb), following oxidation to nitrogen oxides | Atcelts |
| 10960 | EN 1233:1996 | Water quality - Determination of chromium - Atomic absorption spectrometric methods | Izstrādē |
| 11039 | EN 12338:1998 | Water quality - Determination of mercury - Enrichment methods by amalgamation | Atcelts |
| 11018 | EN 12673:1998 | Water quality - Gas chromatographic determination of some selected chlorophenols in water | Izstrādē |
| 11078 | EN 12780:2002 | Water quality - Detection and enumeration of Pseudomonas aeruginosa by membrane filtration | Atcelts |
| 11031 | EN 12918:1999 | Water quality - Determination of parathion, parathion-methyl and some other organophosphorus compounds in water by dichloromethane extraction and gas chromatographic analysis | Izstrādē |
| 11054 | EN 13506:2001 | Water quality - Determination of mercury by atomic fluorescence spectrometry | Atcelts |
| 11059 | EN 13946:2003 | Water quality - Guidance standard for the routine sampling and pretreatment of benthic diatoms from rivers | Atcelts |
| 36146 | EN 13946:2014 | Water quality - Guidance for the routine sampling and preparation of benthic diatoms from rivers and lakes | Izstrādē |
| 11066 | EN 14011:2003 | Water quality - Sampling of fish with electricity | Izstrādē |
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