Acoustics - Determination of sound power levels of noise from air terminal devices, high/low velocity/pressure assemblies, dampers and valves by measurement in a reverberation room
NORM herausgegeben am 1.7.1992
Designation standards: ÖNORM EN 25135
Note: UNGÜLTIG
Publication date standards: 1.7.1992
The number of pages: 15
Approximate weight : 45 g (0.10 lbs)
Country: Austrian technische Norm
Kategorie: Technische Normen ÖNORM