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BS 2497-5:1988

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Standard reference zero for the calibration of pure tone air conduction audiometers Specification for a standard reference zero using an acoustic coupler complying with BS 4668
Available format(s)

Hardcopy , PDF

Superseded date

31-01-1992

Language(s)

English

Published date

29-02-1988

Reference equivalent threshold sound pressure levels for two earphones, Beyer DT 48 with flat cushion and Telephonics TDH 39 with MC 41/AR cushion, in a form suitable for calibration.

Committee
EH/1
DocumentType
Standard
Pages
8
PublisherName
British Standards Institution
Status
Superseded
SupersededBy
Supersedes

Standards Relationship
ISO 389:1991 Identical
ISO 389:1985 Identical

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

IEC 60318:1970 An IEC artificial ear, of the wide band type, for the calibration of earphones used in audiometry
ISO 7566:1987 Acoustics Standard reference zero for the calibration of pure-tone bone conduction audiometers
ISO 6189:1983 Acoustics Pure tone air conduction threshold audiometry for hearing conservation purposes
ISO 7029:2017 Acoustics — Statistical distribution of hearing thresholds related to age and gender

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$247.06
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