CEN/TC 211
| Project No. | EN 25135:1991 |
|---|---|
| Title | Establishment of general rules for the acoustic testing of air terminal devices, high/low velocity/pressure assemblies and dampers and valves used in air diffusion and air distribution systems as defined in ISO 3258 in order to determine sound power levels as defined in ISO 3740. The method is applicable to equipment operating under steady state conditions. |
| Registration number (WIID) | 9743 |
| Scope | Establishment of general rules for the acoustic testing of air terminal devices, high/low velocity/pressure assemblies and dampers and valves used in air diffusion and air distribution systems as defined in ISO 3258 in order to determine sound power levels as defined in ISO 3740. The method is applicable to equipment operating under steady state conditions. |
| Status | Atcelts |
| ICS group | 17.140.20 91.140.30 |