Acoustics; standard reference zero for the calibration of pure-tone bone conduction audiometers (identical with ISO 7566:1987); german version EN 27566:1991— 12 стр.
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 6: Reference threshold of hearing for test signals of short duration (ISO 389-6:2007); German version EN ISO 389-6:2007— 14 стр.
Acoustics - Reference zero for the calibration of audiometric equipment - Part 4: Reference levels for narrow-band masking noise (ISO 389-4:1994); German version EN ISO 389-4:1998— 9 стр.
Acoustics - Standard reference zero for the calibration of pure-tone air conduction audiometers (ISO 389:1991); German version EN ISO 389:1995— 11 стр.
Acoustics - Reference zero for the calibration of audiometric equipment - Part 4: Reference levels for narrow-band masking noise (ISO 389-4:1994); German version EN ISO 389-4:1998— 9 стр.
Acoustics; standard reference zero for the calibration of pure-tone bone conduction audiometers (identical with ISO 7566:1987); german version EN 27566:1991— 12 стр.
Acoustics - Audiometric test methods - Part 2: Sound field audiometry with pure tone and narrow-band test signals; identical with ISO 8253-2:1992— 12 стр.
