BS 2497(1992) : AMD 9442
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
View Superseded by
SPECIFICATION FOR STANDARD REFERENCE ZERO FOR THE CALIBRATION OF PURE TONE AIR CONDUCTION AUDIOMETERS
15-04-1997
23-11-2012
Committees responsible
National foreword
Specification
1 Scope
2 Normative references
3 Definitions
4 Specifications
Tables
1 Recommended reference equivalent threshold sound
pressure levels in a coupler complying with IEC 303
2 Reference equivalent threshold sound pressure levels
in an artificial ear complying with IEC 318
Annexes
A Notes on the derivation and application of the
recommended reference levels
B Bibliography
Provides a standard reference zero for the scale of hearing threshold level applicable to pure-tone air conduction audiometers in order to promote agreement and uniformity in the expression of hearing threshold level measurements throughout the world. Suitable for direct application to the calibration of audiometers, that is, in terms of the response of two different standard models of earphone measured on a coupler complying with IEC 303 and in terms of other supra-aural earphones. Based on an assessment of the information available from the various standardizing laboratories responsible for audiometric standards and from scientific publications. BS AMD 9442 RENUMBERS THIS STANDARD
| Committee |
EPC/1
|
| DevelopmentNote |
Supersedes BS 2497-5(1988), BS 2497-6(1988) and BS 2497-7(1988). Renumbered as BS EN ISO 389 (07/2004)
|
| DocumentType |
Standard
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
| Standards | Relationship |
| ISO 389:1991 | Identical |
| 96/202775 DC : DRAFT MAR 1996 | IEC 60393 (1970) - ACOUSTIC COUPLER FOR THE CALIBRATION OF SUPRA-AURAL EARPHONES USED IN AUDIOMETRY |
| BS 6655:1986 | Specification for pure tone air conduction threshold audiometry for hearing conservation purposes |
| 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.