CEN/TC 165
| Registration number (WIID) | Project No. | Title | Status |
|---|---|---|---|
| 7240 | EN 12255-7:2002 | Wastewater treatment plants - Part 7: Biological fixed-film reactors | Izstrādē |
| 7239 | LVS EN 12255-6:2003 | Wastewater treatment plants - Part 6: Activated sludge process | Atcelts |
| 7239 | EN 12255-6:2002 | Wastewater treatment plants - Part 6: Activated sludge process | Atcelts |
| 7238 | EN 12255-5:1999 | Wastewater treatment plants - Part 5: Lagooning processes | Atcelts |
| 7238 | LVS EN 12255-5:2001 | Wastewater treatment plants - Part 5: Lagooning processes | Standarts spēkā |
| 7237 | LVS EN 12255-4:2003 | Wastewater treatment plants - Part 4: Primary settlement | Atcelts |
| 7237 | EN 12255-4:2002 | Wastewater treatment plants - Part 4: Primary settlement | Atcelts |
| 7236 | LVS EN 12255-3:2016 | Wastewater treatment plants - Part 3: Preliminary treatment | Standarts spēkā |
| 7236 | EN 12255-3:2000 | Wastewater treatment plants - Part 3: Preliminary treatment | Atcelts |
| 7235 | LVS EN 12255-1:2003 | Wastewater treatment plants - Part 1: General construction principles | Atcelts |
Displaying 441-450 of 566 results.