CEN/TC 230
| Registration number (WIID) | Project No. | Title | Status |
|---|---|---|---|
| 73269 | EN 17899:2024 | Water quality - Spectrophotometric determination of chlorophyll-a content by ethanol extraction for the routine monitoring of water quality | Standarts spēkā |
| 78134 | EN 18025:2025 | Water quality - Guidance standard on a strategic approach to river restoration | Standarts spēkā |
| 73271 | EN 18069:2026 | Water quality - Minimum requirements for the selection, installation, validation, and operation of continuous measuring devices | Izstrādē |
| 76122 | EN 18110:2025 | Water quality - Assessment of damage to fish passing through pumping stations and hydropower plants - Methods based on live fish passage survival test and blade strike model | Standarts spēkā |
| 10995 | EN 1899-1:1998 | Water quality - Determination of biochemical oxygen demand after n days (BODn) - Part 1: Dilution and seeding method with allylthiourea addition (ISO 5815:1989, modified) | Atcelts |
| 11051 | EN 1899-2:1998 | Water quality - Determination of biochemical oxygen demand after n days (BODn) - Part 2: Method for undiluted samples (ISO 5815:1989, modified) | Atcelts |
| 11007 | EN 25663:1993 | Water quality - Determination of Kjeldahl nitrogen - Method after mineralization with selenium (ISO 5663:1984) | Izstrādē |
| 10980 | EN 25667-1:1993 | Water quality - Sampling - Part 1: Guidance on the design of sampling programmes (ISO 5667-1:1980) | Atcelts |
| 10981 | EN 25667-2:1993 | Water quality - Sampling - Part 2: Guidance on sampling techniques (ISO 5667-2:1991) | Atcelts |
| 10958 | EN 25813:1992 | Water quality - Determination of dissolved oxygen - Iodometric method (ISO 5813:1983) | Izstrādē |
Displaying 131-140 of 831 results.