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CEN
EN ISO 389-8:2004

EN ISO 389-8:2004

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Current

The latest, up-to-date edition.

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)

Published date

05-15-2004

Publisher

Comite Europeen de Normalisation

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Specifications
Annex A (informative) Notes on the derivation of the
                      reference equivalent threshold
                      sound pressure levels for the
                      circumaural audiometric earphone
                      HDA 200
Annex B (informative) Sound attenuation of the earphone
                      HDA 200
Annex C (informative) Correction figures for free-field
                      equivalent output of the circumaural
                      earphone HDA 200
Bibliography

ISO 389-8:2004 specifies reference equivalent threshold sound pressure levels (RETSPLs) for pure tones in the frequency range from 125 Hz to 8 kHz, applicable to the calibration of air conduction audiometers equipped with a particular model of circumaural earphones (SENNHEISER HDA 200).Some notes and references on the derivation and the test conditions used to determine the recommended reference levels are given in Annex A and the Bibliography.The sound attenuation of the earphone is given in Annex B. For speech audiometers of types A-E and B-E, the correction figures of the earphone for a free-field equivalent output are given in Annex C.

Committee
CEN/TC 211
DocumentType
Standard
PublisherName
Comite Europeen de Normalisation
Status
Current

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ISO/TR 389-5:1998 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 4869-1:1990 Acoustics Hearing protectors Part 1: Subjective method for the measurement of sound attenuation
IEC 60318-2:1998 Electroacoustics - Simulators of human head and ear - Part 2: An interim acoustic coupler for the calibration of audiometric earphones in the extended high-frequency range
ISO 389-1:1998 Acoustics Reference zero for the calibration of audiometric equipment Part 1: Reference equivalent threshold sound pressure levels for pure tones and supra-aural earphones
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IEC 60645-2:1993 Audiometers - Part 2: Equipment for speech audiometry
IEC 60318-1:2009 Electroacoustics - Simulators of human head and ear - Part 1: Ear simulator for the measurement of supra-aural and circumaural earphones

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