Revised
Specifies general requirements for audiometers and particular requirements for pure-tone audiometers designed for use in determining hearing threshold levels in comparison with the standard reference threshold level by means of psycho-acoustic test methods. The contents of the corrigendum of February 1993 have been included in this copy.
WITHDRAWN
IEC 60645:1979 ED1
WITHDRAWN
IEC 60645-1:1992 ED1
99.60
Withdrawal effective
Jun 20, 2001
WITHDRAWN
IEC 60645-1:2001 ED2