Acoustics; standard reference zero for the calibration of pure tone air conduction audiometers; identical with ISO 389:1985 (status as of 1986)— 9 стр.
Acoustics - Reference zero for the calibration of audiometric equipment - Part 3: Reference equivalent threshold vibratory force levels for pure tones and bone vibrators; Amendment 1 (ISO 389-3:2016/DAM 1:2020); German version EN ISO 389-3:2016/prA1:2020
Electroacoustics - Simulators of human head and ear - Part 4: Occluded-ear simulator for the measurement of earphones coupled to the ear by ear inserts (IEC 29/638/CD:2007)