CEN/TC 164
| Registration number (WIID) | Project No. | Title | Status |
|---|---|---|---|
| 6941 | EN 14124:2004 | Inlet valves for flushing cisterns with internal overflow | Izstrādē |
| 81120 | prEN 1487 | Building valves - Hydraulic safety groups - Tests and requirements | Izstrādē |
| 6934 | EN 642:1994 | Prestressed concrete pressure pipes, cylinder and non-cylinder, including joints, fittings and specific requirements for prestressing steel for pipes | Izstrādē |
| 7042 | prEN 879 | Aluminium sulfate, low-iron grade, used for treatment of water intended for human consumption | Izstrādē |
| 6947 | prEN 884 | Polyaluminium hydroxidechloride and hydroxidechloridesulfate, special grade, used for water intended for human consumption | Izstrādē |
| 70168 | prEN 15078 | Chemicals used for treatment of swimming pool water - Sulfuric acid | Izstrādē |
| 81122 | prEN 1488 | Building valves - Expansion groups - Tests and requirements | Izstrādē |
| 83898 | prEN 16003 rev | Chemicals used for treatment of water intended for human consumption - Calcium magnesium carbonate | Izstrādē |
| 65636 | prEN 13828 rev | Building valves - Manually operated copper alloy and stainless steel ball valves for potable water supply in buildings -Tests and requirements | Izstrādē |
| 36429 | EN 897:2012 | Chemicals used for treatment of water intended for human consumption - Sodium carbonate | Izstrādē |
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