CEN/TC 165
| Registration number (WIID) | Project No. | Title | Status |
|---|---|---|---|
| 69385 | prEN 12255-15 rev | Wastewater treatment plants - Part 15: Measurement of the oxygen transfer in clean water in aeration tanks of activated sludge plants | Izstrādē |
| 69386 | EN 12255-13:2023 | Wastewater treatment plants - Part 13: Chemical treatment - Treatment of wastewater by precipitation/flocculation | Izstrādē |
| 7275 | EN 12380:2002 | Air admittance valves for drainage systems - Requirements, tests methods and evaluation of conformity | Izstrādē |
| 64287 | EN 12566-7:2016/prA1 | Small wastewater treatment systems for up to 50 PT - Part 7: Prefabricated tertiary treatment units | Izstrādē |
| 66077 | prEN 1917 rev | Concrete manholes and inspection chambers, unreinforced, steel fibre and reinforced | Izstrādē |
| 7279 | prEN 588-1:1996 rev | Fibre-cement pipes for sewers and drains - Part 1: Pipes, joints and fittings for gravity systems | Izstrādē |
| 7298 | prEN 12050-4/prA1 | Effluent lifting plants for buildings and sites - Principles of construction and testing - Part 4: Non-return valves for faecal free effluent and effluent containing faecal matter | Izstrādē |
| 7296 | prEN 12050-2/prA1 | Effluent lifting plants for buildings and sites - Principles of construction and testing - Part 2: Effluent lifting plants for faecal free effluent | Izstrādē |
| 66081 | prEN 13101 rev | Steps for underground man entry chambers - Requirements, marking, testing and evaluation of conformity | Izstrādē |
| 23073 | prEN 124 rev | Gully tops and manhole tops for vehicular and pedestrian areas | Izstrādē |
Displaying 161-170 of 580 results.