Acoustics - Measurement of sound absorption properties of road surfaces in situ - Part 2: Spot method for reflective surfaces (ISO 13472-2:2010)— 24 стр.
Acoustics - Determination of sound absorption coefficient and impedance in impedance tubes - Part 1: Method using standing wave ratio (ISO 10534-1:1996)
Acoustics - Determination of sound absorption coefficient and impedance in impedance tubes - Part 2: Transfer-function method (ISO 10534-2:1998); German version EN ISO 10534-2:2001, Corrigenda to DIN EN ISO 10534-2:2001-10— 2 стр.
Acoustics - Determination of sound absorption coefficient and impedance in impedances tubes - Part 1: Method using standing wave ratio (ISO 10534-1:1996); German version EN ISO 10534-1:2001— 28 стр.
Acoustics - Determination of sound absorption coefficient and impedance in impedance tubes - Part 2: Transfer-function method (ISO 10534-2:1998); German version EN ISO 10534-2:2001— 26 стр.
Standard Test Method for Impedance and Absorption of Acoustical Materials Using A Tube, Two Microphones and A Digital Frequency Analysis System— 12 стр.