CEN/TC 226
| Registration number (WIID) | Project No. | Title | Status |
|---|---|---|---|
| 72921 | EN 14389:2023 | Road traffic noise reducing devices - Procedures for assessing long term performance | Izstrādē |
| 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 | Izstrādē |
| 72918 | 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 | Izstrādē |
| 72917 | EN 1793-3:2025 | Road traffic noise reducing devices - Test method for determining the acoustic performance - Part 3: Normalized traffic noise spectrum | Izstrādē |
| 72916 | EN 1793-4:2025 | Road traffic noise reducing devices - Test method for determining the acoustic performance - Part 4: Intrinsic characteristics - Intrinsic sound diffraction | Izstrādē |
| 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 | Izstrādē |
| 72914 | 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 | Izstrādē |
| 71757 | - | Road equipment – Interactions between automated vehicles and road infrastructure – Gap and overlap analysis for road equipment in digital geographic infrastructure standards for connected and automated vehicles | Izstrādē |
| 71310 | prEN 1423 rev | Road marking materials - Drop on materials - Glass beads, antiskid aggregates and mixtures of the two | Izstrādē |
| 71309 | prEN 14388 | Road traffic noise reducing devices - Characteristics | Izstrādē |
Displaying 41-50 of 415 results.