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IEC 60645-1:2001 ed2.0

Заменен
ELECTROACOUSTICS - AUDIOLOGICAL EQUIPMENT - Part 1: Pure-tone audiometers — 69 стр.
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.
ICS
17.140.50 Electroacoustics. Including sound level meters / Электроакустика. Включая слуховые аппараты и шумомеры