
Acoustics - Reference Zero For The Calibration Of Audiometric Equipment - Reference Equivalent Threshold Sound Pressure Levels For Pure Tones And Insert Earphones
出版:British Standards Institution

专家解读视频
Specifies reference equivalent threshold sound pressure levels (RETSPL) for the calibration of pure tone audiometers. Also gives detailed definitions, diagrams and annexes. AMD 9427 RENUMBERS THIS STANDARD
© British Standards Institution 2013
Renumbered and superseded by BS EN ISO 389-2.
Supersedes 91/55445 DC.
(10/2005)
ISO 389-2:1994 - Identical