DS DS/EN ISO 10534-1
DS DSEN SO 10534-1 2001-OCT-03 Acoustcs - Determnaton of sound absorpton coeffcent and mpedance n mpedance tubes - Part 1 Method usng standng wave rato
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This standard specifies a method for the determination of the sound absorption coefficient, reflection factor and surface impedance or surface admittance of materials and objects by evaluation of the standing wave pattern of a plane wave in a tube.