Acoustics. Standard reference zero for the calibration of pure tone air conduction audiometers
Summary:
Specifies reference equivalent threshold sound pressure levels for Beyer DT 48, telephonics TDH 39 earphones in a coupler complying with IEC 60303 and supra-aural earphones, meeting stated requirements, in an artificial ear complying with IEC 60318.
Status:
Not Current
Pages:
18
BS EN ISO 389:1997 International Equivalent:
EN ISO 389:1995 ISO 389:1991
BS EN ISO 389:1997 Key Phrases:
Calibration, Audiometers, Datum, Artificial ears, Acoustic equipment, Acoustic measurement, Acoustic couplers, Sound intensity, Hearing (auditory perception), Auditory threshold, Earphones
BS EN ISO 389:1997 Cross References:
ISO 266, ISO 6189, ISO 7029, ISO 7566, ISO 8253-1, IEC 303, IEC 318
BS EN ISO 389:1997 Replaces:
BS 2497:Part 5:1988, BS 2497:Part 6:1988, BS 2497:Part 7:1988
BS EN ISO 389:1997 Replaced By:
