Specifies requirements for mechanical couplers used for calibrating bone-conduction audiometers and for making measurements on bone vibrators and bone-conduction hearing aids in the frequency range from 125 Hz to 8 000 Hz inclusive.
WITHDRAWN
IEC 60373:1971 ED1
WITHDRAWN
IEC 60373:1990 ED2
99.60
Withdrawal effective
Nov 27, 2007