BS 2497-7:1988
Superseded
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Standard reference zero for the calibration of pure tone air conduction audiometers Specification for a standard reference zero at frequencies intermediate between those given in Parts 5 and 6 of BS 2497
Available format(s)
Hardcopy , PDF
Language(s)
English
Published date
29-02-1988
Publisher
Superseded date
31-01-1992
Superseded by
€143.06
Excluding VAT
Reference equivalent threshold sound pressure levels supplementary to those specified for earphones and couplers in Part 5 and for earphones and artificial ears in Part 6.
| Committee |
EH/1
|
| DocumentType |
Standard
|
| Pages |
7
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| SupersededBy |
| BS 7113:1989 | Specification for reference levels for narrow-band masking noise |
| BS 6950:1988 | Specification for a standard reference zero for the calibration of pure tone bone conduction audiometers |
| BS 6951:1988 | Specification for threshold of hearing by air conduction as a function of age and sex for otologically normal persons |
| ISO 266:1997 | Acoustics — Preferred frequencies |
| IEC 60318:1970 | An IEC artificial ear, of the wide band type, for the calibration of earphones used in audiometry |
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