Acoustics -- Reference zero for the calibration of audiometric equipment -- Part 6: Reference threshold of hearing for test signals of short duration— 14 стр.
Acoustics. Reference zero for the calibration of audiometric equipment. Preferred test conditions for the determination of reference hearing threshold levels— 16 стр.
Electroacoustics. Simulators of human head and ear. Occluded-ear simulator for the measurement of earphones coupled to the ear by means of ear inserts— 22 стр.
Acoustics - Reference zero for the calibration of audiometric equipment - Part 9: Preferred test conditions for the determination of reference hearing threshold levels (ISO 389-9:2009)