CEN/TC 164
| Registration number (WIID) | Project No. | Title | Status |
|---|---|---|---|
| 40512 | EN 14368:2015 | Products used for treatment of water intended for human consumption - Manganese dioxide coated limestone | Atcelts |
| 21303 | EN 14368:2003 | Products used for treatment of water intended for human consumption - Manganese dioxide coated limestone | Atcelts |
| 7015 | EN 14367:2005 | Non controllable backflow preventer with different pressure zones - Family C, type A | Izstrādē |
| 69890 | EN 1421:2022 | Chemicals used for treatment of water intended for human consumption - Ammonium chloride | Izstrādē |
| 36422 | EN 1421:2012 | Chemicals used for treatment of water intended for human consumption - Ammonium chloride | Atcelts |
| 24462 | EN 1421:2005 | Chemicals used for treatment of water intended for human consumption - Ammonium chloride | Atcelts |
| 6973 | EN 1421:1996 | Chemicals used for treatment of water intended for human consumption - Ammonium chloride | Atcelts |
| 78122 | EN 1420:2026 | Influence of organic materials on water intended for human consumption - Determination of odour, flavour, colour and turbidity of water in piping and storage systems | Standarts spēkā |
| 40977 | EN 1420:2016 | Influence of organic materials on water intended for human consumption - Determination of odour and flavour assessment of water in piping systems | Atcelts |
| 6926 | EN 1420-1:1999 | Influence of organic materials on water intended for human consumption - Determination of odour and flavour assessment of water in piping systems - Part 1: Test method | Atcelts |
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