CEN/TC 226
| Registration number (WIID) | Project No. | Title | Status |
|---|---|---|---|
| 37131 | prEN 1793-3 rev | Road traffic noise reducing devices - Test method for determining the acoustic performance - Part 3: Normalized traffic noise spectrum | Izstrādē |
| 39549 | prEN 1793-3 rev | Road traffic noise reducing devices - Test method for determining the acoustic performance - Part 3: Normalized traffic noise spectrum | Izstrādē |
| 37137 | prEN 1793-4 | Road traffic noise reducing devices - Test method for determining the acoustic performance - Part 4: Intrinsic characteristics - In situ values of sound diffraction | Izstrādē |
| 72924 | prEN 1794-3 rev | Road traffic noise reducing devices - Non-acoustic performance - Part 3: Reaction to fire - Burning behaviour of noise reducing devices and classification | Izstrādē |
| 10648 | prEN 1823 | Road equipment - Emergency roadside telephones | Izstrādē |
Displaying 411-415 of 415 results.