
Standard Test Method for Sound Absorption and Sound Absorption Coefficients by the Reverberation Room Method
NORMA vydaná dňa 1.3.2008
Označenie normy: ASTM C423-08
Poznámka: NEPLATNÁ
Dátum vydania normy: 1.3.2008
Počet strán: 11
Približná hmotnosť: 33 g (0.07 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
Keywords:
acoustical, acoustics, decay rate, noise, noise reduction coefficient, reverberation room, Acoustical tests, Decay rates, Noise reduction coefficient, Reverberation room method, Sound absorbing/insulating materials/applications, ICS Number Code 91.120.20 (Acoustics in buildings. Sound insulation)