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ČSN is a protected designation of Czech national technical standards.
Acoustics - Preferred reference quantities for acoustic levels
WITHDRAWN published on 1.6.1994
Selected format:Acoustics - Methods for description and physical measurement of single impulses or series of impulses
Standard published on 1.3.1999
Selected format:Akustika - Metody popisu a fyzikálního měření jednotlivých impulzů nebo série impulzů zvuku.
Correction published on 1.2.2010
Selected format:Safety of machinery - Guidance for the drafting of the noise clauses of safety standards
Standard published on 1.7.1999
Selected format:Acoustics - Loudness scaling by means of categories
Standard published on 1.2.2010
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
Standard published on 1.9.2018
Selected format:Acoustics. Reference zero for the calibration of audiometric equipment. Part 2: Reference equivalent threshold sound pressure level for pure tones and insert earphones
Standard published on 1.5.1996
Selected format:Akustika. Referenční nula pro kalibraci audiometrických přístrojů. Část 2: Referenční ekvivalentní prahové hladiny akustického tlaku pro čisté tóny a vložná sluchátka.
Change published on 1.3.1997
Selected format:Acoustics - Reference zero for the calibration of audiometric equipment - Part 3: Reference equivalent threshold vibratory force levels for pure tones and bone vibrators
Standard published on 1.12.2016
Selected format:Acoustics. Reference zero for the calibration of audiometric equipment. Part 4: Reference levels for narrow-band masking noise
Standard published on 1.5.1996
Selected format:Latest update: 2025-12-29 (Number of items: 2 253 390)
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