BS EN ISO 10534-2:2023 Acoustics. Determination of acoustic properties in impedance tubes - Two-microphone technique for normal sound absorption coefficient and normal surface impedance
2023BS EN ISO 10534-2:2023 Acoustics. Determination of acoustic properties in impedance tubes - Two-microphone technique for normal sound absorption coefficient and normal surface impedance
0000 BS EN ISO 10534-2:2001(2002)
1999BS EN ISO 10534-2:2001 Acoustics. Determination of sound absorption coefficient and impedance in impedance tubes - Transfer-function method
1999BS EN ISO 10534-2:1999 Acoustics - Determination of sound absorption coefficient and impedance in impedance tubes - Transfer-function method