Historical
IEC 60645-1 Ed. 2.0 b:2001
ELECTROACOUSTICS - AUDIOLOGICAL EQUIPMENT - Part 1: Pure-tone audiometers
This part of IEC 60645 specifies general requirements for audiometers and particular requirements for pure-tone audiometers designed for use in determining hearing threshold levels, in comparison with standard reference threshold levels by means of psychoacoustic test methods.
International Electrotechnical Commission [iec]