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BS 4668:1971

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by

Specification for an acoustic coupler (IEC reference type) for calibration of earphones used in audiometry

Available format(s)

Hardcopy , PDF

Superseded date

15-07-2001

Language(s)

English

Published date

22-02-1971

€63.10
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Specifies a reference coupler for loading an earphone with specified acoustic impedance when calibrating audiometers for the frequency range 125 Hz to 8000 Hz.

Committee
EPL/29
DocumentType
Standard
Pages
10
PublisherName
British Standards Institution
Status
Superseded
SupersededBy

BS 6655:1986 Specification for pure tone air conduction threshold audiometry for hearing conservation purposes
BS 6083-3:1991 Hearing aids Methods for measurement of electroacoustical characteristics of hearing aid equipment not entirely worn on the listener
BS 5502-21:1990 Buildings and structures for agriculture Code of practice for selection and use of construction materials
BS 6083-10:1988 Hearing aids Guide to hearing aid standards
BS 4669:1971 Specification for an artificial ear of the wide band type for the calibration of earphones used in audiometry

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