BS ISO 389-3:1995
Acoustics. Reference zero for the calibration of audiometric equipment. Reference equivalent threshold force levels for pure tones and bone vibrators

Standard No.

BS ISO 389-3:1995

Release Date

1995

Published By

British Standards Institution (BSI)

Latest

BS ISO 389-3:1995

Replace

BS 6950:1988

Scope

Specifies the following data applicable to the calibration of bone vibrators for pure-tone bone-conduction audiometry: reference equivalent threshold force levels (RETFL), corresponding to the threshold of hearing of young otologically normal persons by bone-conduction audiometry; essential characteristics of the bone vibrator and of its method of coupling to a person under test and to the mechanical coupler; essential characteristics and datum level of the masking noise applied to the ear not under test.

BS ISO 389-3:1995 history

• 1995 BS ISO 389-3:1995 Acoustics. Reference zero for the calibration of audiometric equipment. Reference equivalent threshold force levels for pure tones and bone vibrators
• 0000 BS 6950:1988