NF S31-079-2*NF EN ISO 10534-2:2003 Acoustics - Determination of sound absorption coefficient and impedance in impedance tubes - Part 2 : transfer-function method
2003NF S31-079-2*NF EN ISO 10534-2:2003 Acoustics - Determination of sound absorption coefficient and impedance in impedance tubes - Part 2 : transfer-function method