CEN/TC 226
| Registration number (WIID) | Project No. | Title | Status |
|---|---|---|---|
| 58688 | LVS EN 1794-1:2018 | Road traffic noise reducing devices - Non-acoustic performance - Part 1: Mechanical performance and stability requirements | Atcelts |
| 33441 | LVS EN 1794-1:2011 | Road traffic noise reducing devices - Non-acoustic performance - Part 1: Mechanical performance and stability requirements | Atcelts |
| 21679 | LVS EN 1794-1:2003 | Road traffic noise reducing devices - Non-acoustic performance - Part 1: Mechanical performance and stability requirements | Atcelts |
| 10634 | LVS EN 1794-1:1998 | Road traffic noise reducing devices - Non-acoustic performance - Part 1: Mechanical performance and stability requirements | Atcelts |
| 73250 | LVS EN 1793-6+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 |
| 72920 | LVS 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 |
| 61087 | LVS 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 |
| 33443 | LVS EN 1793-6:2013 | 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 | LVS 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 |
| 66883 | LVS EN 1793-5:2016/AC:2018 | Road traffic noise reducing devices - Test method for determining the acoustic performance - Part 5: Intrinsic characteristics - In situ values of sound reflection under direct sound field conditions | Atcelts |
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