CEN/TC 230
| Reģistrācijas numurs (WIID) | Projekta Nr. | Nosaukums | Statuss |
|---|---|---|---|
| 82508 | prEN ISO 25806 | Water quality - Guidance on field and laboratory procedures for aquatic macroinvertebrate sample preservation for DNA based analyses | Izstrādē |
| 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 |
| 81888 | prEN ISO 23697-1 | Wasserbeschaffenheit - Bestimmung von Gesamt-Stickstoff (TNb) in Wasser mittels Küvetten - Teil 1: Verfahren mit Dimethylphenol (ISO 23697-1:2023) | 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 |
| 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 |
| 81885 | prEN ISO 23695 | Water quality - Determination of ammonium nitrogen in water - Small-scale sealed tube method (ISO 23695:2023) | Aptauja |
| 67529 | prEN ISO 22515 | Wasserbeschaffenheit - Eisen‑55 - Verfahren mit dem Flüssigszintillationszähler (ISO 22515:2021) | Izstrādē |
| 80907 | prEN ISO 22125-2 rev | Wasserbeschaffenheit - Technetium 99 - Teil 2: Verfahren mittels Massenspektrometrie und induktiv gekoppeltem Plasma | Izstrādē |
| 80906 | prEN ISO 22125-1 rev | Water quality — Technetium-99 — Part 1: Test method using liquid scintillation counting | Izstrādē |
| 77819 | prEN ISO 22032 | Wasserbeschaffenheit - Bestimmung von polybromierten Diphenylethern (PBDE) in Sedimenten, Schwebstoffen und Biota - Verfahren mittels Gaschromatographie/Massenspektrometrie und der hochauflösenden Massenspektrometrie (GC-MS/MS; GC-HRMS) (ISO/DIS 22032:2025) | Aptauja slēgta |
Attēlo no 21. līdz 30. no pavisam 811 ieraksta(-iem).