CEN/TC 226
| Registration number (WIID) | Project No. | Title | Status |
|---|---|---|---|
| 33441 | EN 1794-1:2011 | Road traffic noise reducing devices - Non-acoustic performance - Part 1: Mechanical performance and stability requirements | Atcelts |
| 21679 | EN 1794-1:2003 | Road traffic noise reducing devices - Non-acoustic performance - Part 1: Mechanical performance and stability requirements | Atcelts |
| 10634 | EN 1794-1:1998 | Road traffic noise reducing devices - Non-acoustic performance - Part 1: Mechanical performance and stability requirements | Atcelts |
| 72920 | EN 1793-6:2025 | Road traffic noise reducing devices - Test method for determining the acoustic performance - Part 6: Intrinsic characteristics - Airborne sound insulation under direct sound field conditions | Standarts spēkā |
| 69690 | EN 1793-6:2018/prA1 | Road traffic noise reducing devices - Test method for determining the acoustic performance - Part 6: Intrinsic characteristics - In situ values of airborne sound insulation under direct sound field conditions | Izstrādē |
| 73250 | EN 1793-6:2018+A1:2021 | Road traffic noise reducing devices - Test method for determining the acoustic performance - Part 6: Intrinsic characteristics - In situ values of airborne sound insulation under direct sound field conditions | Atcelts |
| 61087 | EN 1793-6:2018 | Road traffic noise reducing devices - Test method for determining the acoustic performance - Part 6: Intrinsic characteristics - In situ values of airborne sound insulation under direct sound field conditions | Atcelts |
| 41566 | EN 1793-6:2012/prA1 | Road traffic noise reducing devices - Test method for determining the acoustic performance - Part 6: Intrinsic characteristics - In situ values of airborne sound insulation under direct sound field conditions | Izstrādē |
| 33443 | EN 1793-6:2012 | Road traffic noise reducing devices - Test method for determining the acoustic performance - Part 6: Intrinsic characteristics - In situ values of airborne sound insulation under direct sound field conditions | Atcelts |
| 72915 | EN 1793-5:2025 | Road traffic noise reducing devices - Test method for determining the acoustic performance - Part 5: Intrinsic characteristics - Sound absorption under direct sound field conditions | Standarts spēkā |
Displaying 261-270 of 422 results.