CEN/TC 230
| Registration number (WIID) | Project No. | Title | Status |
|---|---|---|---|
| 80905 | prEN ISO 9698 rev | Water quality — Tritium — Test method using liquid scintillation counting | Izstrādē |
| 80200 | prEN ISO 9697 | Water quality - Gross beta activity - Test method using thick source (ISO/DIS 9697:2025) | Aptauja |
| 11076 | prEN ISO 9377-1 | Water quality - Determination of hydrocarbon oil index - Part 1: Method using solvent extraction and gravimetry (ISO/DIS 9377-1:2000) | Izstrādē |
| 77973 | prEN ISO 9308-4 | Water quality - Enumeration of Escherichia coli and coliform bacteria - Part 4: Membrane filtration method for Escherichia coli in water with high levels of background bacteria (ISO/DIS 9308-4:2025) | Aptauja |
| 77980 | prEN ISO 9308-4 | Water quality -- Detection and enumeration of Escherichia coli -- Part 4: Membrane filtration method for water with high levels of background bacteria | Izstrādē |
| 77978 | prEN ISO 9308-4 | Water quality -- Detection and enumeration of Escherichia coli -- Part 4: Membrane filtration method for water with high levels of background bacteria | Izstrādē |
| 80233 | prEN ISO 9308-2 rev | Water quality — Enumeration of Escherichia coli and coliform bacteria — Part 2: Most probable number method | Izstrādē |
| 74816 | prEN ISO 9308-2 rev | Water quality - Enumeration of Escherichia coli and coliform bacteria - Part 2: Most probable number method | Izstrādē |
| 35039 | prEN ISO 8689-1 rev | Water quality - Biological classification of rivers - Part 1: Guidance on the interpretation of biological quality data from surveys of benthic macroinvertebrates | Izstrādē |
| 24025 | prEN ISO 7346 rev | Water quality -- Determination of acute lethality to freshwater and marine fish | Izstrādē |
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