Standard Test Method for Sound Absorption and Sound Absorption Coefficients by the Reverberation Room Method (Includes all amendments And changes 2/6/2017).
NORMA vydaná dňa 15.10.2009
Označenie normy: ASTM C423-09a
Poznámka: NEPLATNÁ
Dátum vydania normy: 15.10.2009
Počet strán: 12
Približná hmotnosť: 36 g (0.08 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)