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@ relative to standard reference threshold levels established by means of psychoacoustic test methods. The object of this standard is to ensure: a) that tests of hearing in the frequency range 125 Hz to 16 000 Hz on a given human ear@ performed with different audiometers which comply with this standard shall give substantially the same results; b) that the results obtained represent a valid comparison between the hearing of the ear tested and the reference threshold of hearing; c) that audiometers are classified according to the range of test signals they generate@ according to the mode of operation or according to the complexity of the range of auditory functions they test.
IEC 60645-1:2012 history
0000 IEC 60645-1:2017 RLV
2012IEC 60645-1:2012 Electroacoustics – Audiometric equipment – Part 1: Equipment for pure-tone audiometry (Edition 3.0)
IEC 60645-1:2012 Electroacoustics – Audiometric equipment – Part 1: Equipment for pure-tone audiometry (Edition 3.0) has been changed from IEC 60645-4:1994 Audiometers - Part 4: Equipment for extended high-frequency audiometry.