BS 4668:1971

Superseded

View Superseded by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Superseded date

07-15-2001

Language(s)

English

Published date

02-22-1971

Publisher

British Standards Institution

NO CONTENTS SECTION

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Status	Superseded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 EN 60318-3:2015 BS EN 60318-3:1998

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