CEN/TC 230
| Registration number (WIID) | Project No. | Title | Status |
|---|---|---|---|
| 78130 | prEN 16150 | Water quality - Guidance on pro-rata multi-habitat sampling of benthic macroinvertebrates from rivers and streams | Aptauja slēgta |
| 77819 | prEN ISO 22032 | Water quality - Determination of polybrominated diphenyl ethers (PBDE) in sediment, suspended (particulate) matter and biota - Method using gas chromatography-tandem mass spectrometry or high resolution mass spectrometry (GC-MS/MS; HRMS) (ISO/DIS 22032:2025) | Aptauja slēgta |
| 77982 | prEN ISO 13647 | Water quality - Enumeration of culturable microorganisms - Colony count by spread plate inoculation on R2A medium (ISO/DIS 13647:2025) | Aptauja slēgta |
| 80903 | prEN ISO 10704 | Water quality - Gross alpha and gross beta activity - Test method using thin source deposit (ISO/DIS 10704:2025) | Aptauja |
| 80201 | prEN ISO 11704 | Water quality - Gross alpha and gross beta activity - Test method using liquid scintillation counting (ISO/DIS 11704:2025) | Aptauja |
| 81887 | prEN ISO 23696-2 | Water quality - Determination of nitrate in water using small-scale sealed tubes - Part 2: Chromotropic acid colour reaction (ISO 23696-2:2023) | Aptauja |
| 81888 | prEN ISO 23697-1 | 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) | Aptauja |
| 81885 | prEN ISO 23695 | Water quality - Determination of ammonium nitrogen in water - Small-scale sealed tube method (ISO 23695:2023) | Aptauja |
| 81886 | prEN ISO 23696-1 | Water quality - Determination of nitrate in water using small-scale sealed tubes - Part 1: Dimethylphenol colour reaction (ISO 23696-1:2023) | Aptauja |
| 81889 | prEN ISO 23697-2 | Water quality - Determination of total bound nitrogen (ST-TNb) in water using small-scale sealed tubes - Part 2: Chromotropic acid colour reaction (ISO 23697-2:2023) | Aptauja |
Displaying 301-310 of 813 results.