BS 2497-7:1988

Superseded

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

Superseded date

31-01-1992

Language(s)

English

Published date

29-02-1988

Publisher

British Standards Institution

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Status	Superseded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 2497(1992) : AMD 9442 BS EN ISO 389:1997

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