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ČSN is a protected designation of Czech national technical standards.
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WITHDRAWN published on 1.8.2000
Selected format:Acoustics - Reference zero for the calibration of audiometric equipment - Part 7: Reference threshold of hearing under free-field and difuse-field listening conditions
WITHDRAWN published on 1.12.1998
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WITHDRAWN published on 1.5.2006
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WITHDRAWN published on 1.6.2020
Selected format:Acoustics - Statistical distribution of hearing thresholds related to age and gender
Standard published on 1.9.2018
Selected format:Akustika - Statistické rozdělení prahů slyšení s ohledem na věk a pohlaví.
Change published on 1.10.2024
Selected format:Acoustics - Statistical distribution of hearing thresholds as a function of age (ISO 7029:2000)
WITHDRAWN published on 1.1.2001
Selected format:
WITHDRAWN published on 1.5.1993
Selected format:Acoustics - Statistical distribution of hearing thresholds related to age and gender
WITHDRAWN published on 1.7.2017
Selected format:Acoustics - Statistical distribution of hearing thresholds of otologically normal persons in the age range from 18 years to 25 years under free-field listening conditions
Standard published on 1.6.2012
Selected format:Latest update: 2025-12-29 (Number of items: 2 253 390)
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