IEC 60645的本部分规定了描述物理特性的方法，包括: 短程测听参考和测试信号的电波形和方法 用于测量。 本文件的目的是确保规定了短时听力刺激 并以相同的方式进行测量，并且使用此类信号对设备进行校准 使用定义的方法执行。购买本文件时可获得的所有当前修订均包含在购买本文件中。

This part of IEC 60645 specifies a means of describing the physical characteristics, in terms of electrical waveforms, of audiometric reference and test signals of short duration and methods for their measurement. The object of this document is to ensure that audiometric stimuli of short duration are specified and measured in the same way and that the calibration of equipment using such signals is carried out using defined methods.All current amendments available at time of purchase are included with the purchase of this document.