DS DS/EN ISO 10534-2
DS DSEN SO 10534-2 2001-OCT-03 Acoustcs - Determnaton of sound absorpton coeffcent and mpedance n mpedance tubes - Part 2 Transfer-functon method
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This standard specifices a method for the determination of the sound absorption coefficient as well as surface impedance and admittance by use of an impedance tube, two microphone locations and a digital frequency analysis system.