CEN/TC 226
| Registration number (WIID) | Project No. | Title | Status |
|---|---|---|---|
| 33444 | LVS EN 1793-1:2013 | Road traffic noise reducing devices - Test method for determining the acoustic performance - Part 1: Intrinsic characteristics of sound absorption | Atcelts |
| 41567 | LVS EN 1793-1:2017 | Road traffic noise reducing devices - Test method for determining the acoustic performance - Part 1: Intrinsic characteristics of sound absorption under diffuse sound field conditions | Atcelts |
| 72918 | LVS EN 1793-1:2025 | Road traffic noise reducing devices - Test method for determining the acoustic performance - Part 1: Intrinsic characteristics - Sound absorption under diffuse sound field conditions | Standarts spēkā |
| 10644 | LVS EN 1793-2:1997 A | Road traffic noise reducing devices - Test method for determining the acoustic performance - Part 2: Intrinsic characteristics of airborne sound insulation | Atcelts |
| 33445 | LVS EN 1793-2:2013 | Road traffic noise reducing devices - Test method for determining the acoustic performance - Part 2: Intrinsic characteristics of airborne sound insulation under diffuse sound field conditions | Atcelts |
| 61089 | LVS EN 1793-2:2018 | Road traffic noise reducing devices - Test method for determining the acoustic performance - Part 2: Intrinsic characteristics of airborne sound insulation under diffuse sound field conditions | Standarts spēkā |
| 72914 | LVS EN 1793-2:2025 | Road traffic noise reducing devices - Test method for determining the acoustic performance - Part 2: Intrinsic characteristics - Airborne sound insulation under diffuse sound field conditions | |
| 10645 | LVS EN 1793-3:1997 A | Road traffic noise reducing devices - Test method for determining the acoustic performance - Part 3: Normalised traffic noise spectrum | Atcelts |
| 72917 | LVS EN 1793-3:2025 | Road traffic noise reducing devices - Test method for determining the acoustic performance - Part 3: Normalized traffic noise spectrum | Standarts spēkā |
| 40404 | LVS EN 1793-4:2015 | Road traffic noise reducing devices - Test method for determining the acoustic performance - Part 4: Intrinsic characteristics - In situ values of sound diffraction | Atcelts |
Displaying 311-320 of 422 results.