CEN/TC 164
| Registration number (WIID) | Project No. | Title | Status |
|---|---|---|---|
| 36422 | EN 1421:2012 | Chemicals used for treatment of water intended for human consumption - Ammonium chloride | Atcelts |
| 69890 | EN 1421:2022 | Chemicals used for treatment of water intended for human consumption - Ammonium chloride | Izstrādē |
| 7015 | EN 14367:2005 | Non controllable backflow preventer with different pressure zones - Family C, type A | Izstrādē |
| 21303 | EN 14368:2003 | Products used for treatment of water intended for human consumption - Manganese dioxide coated limestone | Atcelts |
| 40512 | EN 14368:2015 | Products used for treatment of water intended for human consumption - Manganese dioxide coated limestone | Izstrādē |
| 21304 | EN 14369:2003 | Products used for treatment of water intended for human consumption - Iron-coated granular activated alumina | Atcelts |
| 40508 | EN 14369:2015 | Products used for treatment of water intended for human consumption - Iron-coated granular activated alumina | Izstrādē |
| 7075 | EN 14395-1:2004 | Influence of organic materials on water intended for human consumption - Organoleptic assessment of water in storage systems - Part 1: Test method | Izstrādē |
| 6936 | EN 1444:2000 | Fibre-cement pipelines - Guide for laying and on-site work practices | Izstrādē |
| 7017 | EN 14451:2005 | Devices to prevent pollution by backflow of potable water - In-line anti-vacuum valves DN 8 to DN 80 - Family D, type A | Atcelts |
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