Material Testing Standards

Reverberation Room Method

• ISO 354: 1985, Acoustics - Measurement of sound absorption in a reverberation room. Amendment (1998)
• ASTM C 423-99a: Standard Test Method for Sound Absorption ans Sound Absorption Coefficients by the Reverberation Room Method

Standing Wave Impedance Tube Method

• ISO 10534-1: 1996, Acoustics - Determination of sound absorption coefficient and impedance in impedance tubes - Part 1: Method using standing wave ratio
• ASTM C 384-98: Standard Test Method for Impedance and Absorption of Acoustical Materials by Impedance Tube Method