Normen ČSN - Tschechische nationale Normen - Seite Nr. 129

Acoustics. Reference zero for the calibration of audiometric equipment. Part 4: Reference levels for narrow-band masking noise

Die Norm herausgegeben am 1.5.1996

Akustika. Referenční nula pro kalibraci audiometrických přístrojů. Část 4: Referenční hladiny pro úzkopásmový maskovací šum.

Änderung herausgegeben am 1.4.1999

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

Die Norm herausgegeben am 1.7.2007

Acoustics - Reference zero for the calibration of audiometric equipment - Part 6: Reference threshold of hearing test signals of short duration

Die Norm herausgegeben am 1.1.2008

Acoustics - Reference zero for the calibration of audiometric equipment - Part 7: Reference threshold of hearing under free-field and diffuse-field listening conditions

Die Norm herausgegeben am 1.3.2022

Acoustics - Reference zero for the calibration of audiometric equipment - Part 8: Reference equivalent threshold sound pressure levels for pure tones and circumaural earphones

Die Norm herausgegeben am 1.1.2005

Acoustics - Reference zero for the calibration of audiometric equipment - Part 9: Preferred test conditions for the determination of reference hearing threshold levels

Die Norm herausgegeben am 1.1.2010

UNGÜLTIG herausgegeben am 1.5.1993

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)

UNGÜLTIG herausgegeben am 1.9.2000

Acoustics. Reference zero for the calibration of audiometric equipment. Part 3: Reference equivalent threshold force levels for pure tones and bone vibrators

UNGÜLTIG herausgegeben am 1.5.1996