UNE-EN ISO 10534-1:2002 Acoustics - Determination of sound absorption coefficient and impedance in impedances tubes - Part 1: Method using standing wave ratio. (ISO 10534-1:1996)
2002UNE-EN ISO 10534-1:2002 Acoustics - Determination of sound absorption coefficient and impedance in impedances tubes - Part 1: Method using standing wave ratio. (ISO 10534-1:1996)