CEN/TC 165
| Registration number (WIID) | Project No. | Title | Status |
|---|---|---|---|
| 7241 | LVS EN 12255-8:2002 | Wastewater treatment plants - Part 8: Sludge treatment and storage | Atcelts |
| 7240 | LVS EN 12255-7:2003 | Wastewater treatment plants - Part 7: Biological fixed-film reactors | Standarts spēkā |
| 66910 | LVS EN 12255-6:2023 | Wastewater treatment plants - Part 6: Activated sludge process | Standarts spēkā |
| 7239 | LVS EN 12255-6:2003 | Wastewater treatment plants - Part 6: Activated sludge process | Atcelts |
| 66909 | LVS EN 12255-5:2024 | Wastewater treatment plants - Part 5: Lagooning processes | Standarts spēkā |
| 7238 | LVS EN 12255-5:2001 | Wastewater treatment plants - Part 5: Lagooning processes | Standarts spēkā |
| 66912 | LVS EN 12255-4:2023 | Wastewater treatment plants - Part 4: Primary treatment | Standarts spēkā |
| 7237 | LVS EN 12255-4:2003 | Wastewater treatment plants - Part 4: Primary settlement | Atcelts |
| 69387 | LVS EN 12255-3:2024 | Wastewater treatment plants - Part 3: Preliminary treatment | Standarts spēkā |
| 7236 | LVS EN 12255-3:2016 | Wastewater treatment plants - Part 3: Preliminary treatment | Standarts spēkā |
Displaying 231-240 of 567 results.