标准摘要
[中文适用范围]： IEC 60645 的这一部分规定了听力计的一般要求以及设计用于确定听力阈值@（相对于通过心理声学测试方法建立的标准参考阈值水平）的纯音听力计的特殊要求。本标准的目的是确保： a) 使用符合本标准的不同听力计对给定人耳进行 125 Hz 至 16 000 Hz 频率范围内的听力测试，应得出基本相同的结果； b) 获得的结果代表被测耳的听力与参考听力阈值之间的有效比较； c) 听力计根据其产生的测试信号范围进行分类@根据操作模式或根据其测试的听觉功能范围的复杂性。 [外文原描述]： IEC 60645-1:2012 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. This third edition cancels and replaces the second edition, published in 2001, and IEC 60645-4 published in 1994. It constitutes an editorial revision.
英文名称Electroacoustics - Audiometric equipment - Part 1: Equipment for pure-tone audiometry