ISO 389-3:2016现行
Acoustics - Reference zero for the calibration of audiometric equipment Part 3: Reference equivalent threshold vibratory force levels for pure tones and bone vibrators
出版：International Organization for Standardization
专家解读视频
Defines the following data applicable to the calibration of bone vibrators for pure-tone bone-conduction audiometry: a) reference equivalent threshold vibratory force levels (RETVFL), corresponding to the threshold of hearing of young otologically normal persons by bone-conduction audiometry; b) essential characteristics of the bone vibrator and the method of coupling to the test subject, and to the mechanical coupler; and c) essential characteristics of the masking noise and the baseline masking noise level applied to the ear not under test.
GOST R ISO 389-3 : 2011 - Identical
BS ISO 389-3 : 1994 AMD 10483 - Identical
DS EN ISO 389-3 : 2016 - Identical
PN EN ISO 389-3 : 2016 - Identical
DIN EN 27566 : 1992 - Identical
AS/NZS ISO 389.3:2019 - Identical
UNI EN ISO 389-3:2016 - Identical
SS-EN ISO 389-3:2016 - Identical
