BS 2497-7:1988
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
View Superseded by
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
Hardcopy , PDF
31-01-1992
English
29-02-1988
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Superseded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 |
Access your standards online with a subscription
Features
-
Simple online access to standards, technical information and regulations.
-
Critical updates of standards and customisable alerts and notifications.
-
Multi-user online standards collection: secure, flexible and cost effective.