Normen STN - Slowakische nationale Normen - Seite Nr. 93

Acoustics - Reference zero for the calibration of audiometric equipment - Part 7: Reference threshold of hearing under free-field and diffuse-field listening conditions (ISO 389-7:2019)

Die Norm herausgegeben am 1.3.2020

Acoustics - Reference zero for the calibration of audiometric equipment - Part 8: Reference equivalent threshold sound pressure levels for pure tones and circumaural earphones (ISO 389-8:2004)

Die Norm herausgegeben am 1.12.2004

Acoustics - Reference zero for the calibration of audiometric equipment - Part 9: Preferred test conditions for the determination of reference hearing threshold levels (ISO 389-9:2009)

Die Norm herausgegeben am 1.1.2010

Acoustics. Standard reference zero for the calibration of pure-tone air conduction audiometers

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 1.10.2001

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 1.2.2001

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)

UNGÜLTIG herausgegeben am 1.10.2001

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

UNGÜLTIG herausgegeben am 1.12.2000

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)

UNGÜLTIG herausgegeben am 1.4.2006

Acoustics - Statistical distribution of hearing thresholds related to age and gender (ISO 7029:2017)

Die Norm herausgegeben am 1.7.2017