CEN/TC 230
| Registration number (WIID) | Project No. | Title | Status |
|---|---|---|---|
| 11098 | prEN 26461-2:1993 rev | Water quality - Detection and enumeration of the spores of sulfite-reducing anaerobes (clostridia) - Part 2: Method by membrane filtration | Izstrādē |
| 20963 | prEN 27828:1994 rev | Water quality - Methods of biological sampling - Guidance on handnet sampling of aquatic benthic macro-invertebrates | Izstrādē |
| 63235 | prEN ISO 10634 | Water quality - Guidance for the preparation and treatment of poorly water-soluble organic compounds for the subsequent evaluation of their biodegradability in an aqueous medium | Izstrādē |
| 80903 | prEN ISO 10704 | Water quality - Gross alpha and gross beta activity - Test method using thin source deposit (ISO/DIS 10704:2025) | Aptauja slēgta |
| 83560 | prEN ISO 11348-1 rev | 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 | Izstrādē |
| 83561 | prEN ISO 11348-2 rev | Water quality — Determination of the inhibitory effect of water samples on the light emission of Vibrio fischeri (Luminescent bacteria test) — Part 2: Method using liquid-dried bacteria | Izstrādē |
| 83562 | prEN ISO 11348-3 rev | Water quality — Determination of the inhibitory effect of water samples on the light emission of Vibrio fischeri (Luminescent bacteria test) — Part 3: Method using freeze-dried bacteria | Izstrādē |
| 80201 | prEN ISO 11704 | Water quality - Gross alpha and gross beta activity - Test method using liquid scintillation counting (ISO/DIS 11704:2025) | Aptauja slēgta |
| 21800 | prEN ISO 11969:1996 rev | Water quality - Determination of arsenic - Atomic absorption spectrometric method (hydride technique) | Izstrādē |
| 83636 | prEN ISO 12010 rev | Water quality — Determination of short-chain polychlorinated alkanes (SCCP) in water — Method using gas chromatography-mass spectrometry (GC-MS) and negative-ion chemical ionization (NCI) | Izstrādē |
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