CEN/TC 230
| Registration number (WIID) | Project No. | Title | Status |
|---|---|---|---|
| 11097 | prEN 26461-1:1993 rev | Water quality - Detection and enumeration of the spores of sulfite-reducing anaerobes (clostridia) - Part 1: Method by enrichment in a liquid medium | Izstrādē |
| 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 |
| 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 |
| 81410 | prEN ISO 13160 rev | Water quality — Strontium 90 and strontium 89 — Test methods using liquid scintillation counting or proportional counting | Izstrādē |
| 80901 | prEN ISO 13164-1 rev | Water quality — Radon-222 — Part 1: General principles | Izstrādē |
| 80902 | prEN ISO 13164-2 rev | Water quality — Radon-222 — Part 2: Test method using gamma-ray spectrometry | Izstrādē |
Displaying 761-770 of 814 results.