BS ISO 389-4 : 1994 AMD 10484
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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ACOUSTICS - REFERENCE ZERO FOR THE CALIBRATION OF AUDIOMETRIC EQUIPMENT - REFERENCE LEVELS FOR NARROWBAND MASKING NOISE
15-07-1999
23-11-2012
NO CONTENTS SECTION
Specifies four reference levels for narrow band masking noise presented by air construction from an earphone in pure tone audiometry. Also gives detailed definitions and annexes. BS AMD 10484 RENUMBERS STD
| Committee |
EPC/1
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| DevelopmentNote |
Renumbered and superseded by BS EN ISO 389-4. Supersedes BS 7113(1989) and 86/53942 DC. (10/2005)
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| DocumentType |
Standard
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
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| SupersededBy | |
| Supersedes |
| Standards | Relationship |
| ISO 389-4:1994 | Identical |
| ISO 389:1991 | Acoustics Standard reference zero for the calibration of pure-tone air conduction audiometers |
| IEC 60126:1973 | IEC reference coupler for the measurement of hearing aids using earphones coupled to the ear by means of ear inserts |
| IEC 60711:1981 | Occluded-ear simulator for the measurement of earphones coupled to the ear by ear inserts |
| IEC 60318:1970 | An IEC artificial ear, of the wide band type, for the calibration of earphones used in audiometry |
| ISO 389-2:1994 | Acoustics Reference zero for the calibration of audiometric equipment Part 2: Reference equivalent threshold sound pressure levels for pure tones and insert earphones |
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