We need your consent to use the individual data so that you can see information about your interests, among other things. Click "OK" to give your consent.
STN is a protected designation of Slovak national technical standards.
Acoustics. Standard reference zero for the calibration of pure-tone air conduction audiometers
WITHDRAWN published on 1.5.1993
Selected format:Acoustics. Reference zero for the calibration of audiometric equipment. Part 1: Reference equivalent threshold sound pressure levels for pure tones and supra-aural earphones (ISO 389-1:1998)
WITHDRAWN published on 1.10.2001
Selected format:Acoustics. Reference zero for the calibration of audiometric equipment. Part 3: Reference equivalent threshold force levels for pure tones and bone vibrators
WITHDRAWN published on 1.2.2001
Selected format:Acoustics. Reference zero for the calibration of audiometric equipment. Part 5: Reference equivalent threshold sound pressure levels for pure tones in the frequency range 8 kHz to 16 kHz (ISO/TR 389-5:1998)
WITHDRAWN published on 1.10.2001
Selected format:Acoustics. Reference zero for the calibration of audiometric equipment. Part 7: Reference threshold of hearing under free-field and diffuse-field listening conditions
WITHDRAWN published on 1.12.2000
Selected format:Acoustics - Reference zero for the calibration of audiometric equipment - Part 7: Reference threshold of hearing under free-field and diffuse-field listening conditions (ISO 389-7:2005)
WITHDRAWN published on 1.4.2006
Selected format:Acoustics - Statistical distribution of hearing thresholds related to age and gender (ISO 7029:2017)
Standard published on 1.7.2017
Selected format:Acoustics - Statistical distribution of hearing thresholds related to age and gender (ISO 7029:2017)
Change published on 1.9.2024
Selected format:Acoustics - Statistical distribution of hearing threshold as a function of age (ISO 7029:2000)
WITHDRAWN published on 1.12.2001
Selected format:Acoustics. Threshold of hearing by air conduction as a function of age and sex for otologically normal persons
WITHDRAWN published on 1.5.1993
Selected format:Latest update: 2025-07-06 (Number of items: 2 207 474)
© Copyright 2025 NORMSERVIS s.r.o.