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BS 2497(1992) : AMD 9442

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by
superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

SPECIFICATION FOR STANDARD REFERENCE ZERO FOR THE CALIBRATION OF PURE TONE AIR CONDUCTION AUDIOMETERS
Superseded date

15-04-1997

Published date

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Superseded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

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