BS EN ISO 389-8:2004
Current
The latest, up-to-date edition.
Acoustics. Reference zero for the calibration of audiometric equipment Reference equivalent threshold sound pressure levels for pure tones and circumaural earphones
Hardcopy , PDF
English
06-08-2004
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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
Describes 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).
| Committee |
EH/1/1
|
| DevelopmentNote |
Supersedes 01/565000 DC. (06/2004)
|
| DocumentType |
Standard
|
| Pages |
16
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
| Supersedes |
This part of ISO389 specifies reference equivalent threshold sound pressure levels (RETSPLs) for pure tones in the frequency range from 125Hz to 8kHz, applicable to the calibration of air conduction audiometers equipped with a particular model of circumaural earphones (SENNHEISER HDA 200).
NOTE Some notes and references on the derivation and the test conditions used to determine the recommended reference levels are given in AnnexA and the Bibliography.
The sound attenuation of the earphone is given in AnnexB. For speech audiometers of typesA-E and B-E (see IEC60645-2), the correction figures of the earphone for a free-field equivalent output are given in AnnexC.
| Standards | Relationship |
| NF EN ISO 389-8 : 2004 | Identical |
| I.S. EN ISO 389-8:2004 | Identical |
| UNI EN ISO 389-8 : 2004 | Identical |
| NEN EN ISO 389-8 : 2004 | Identical |
| UNE-EN ISO 389-8:2004 | Identical |
| SN EN ISO 389-8 : 2004 | Identical |
| EN ISO 389-8:2004 | Identical |
| ISO 389-8:2004 | Identical |
| NS EN ISO 389-8 : 1ED 2004 | Identical |
| NBN EN ISO 389-8 : 2004 | Identical |
| DIN EN ISO 389-8:2004-11 | Identical |
| 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 |
| ISO 8253-1:2010 | Acoustics Audiometric test methods Part 1: Pure-tone air and bone conduction audiometry |
| 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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