IEC 62127-2:20 07+A1:2013规定了绝对水听器校准方法和相对（比较）水听器校准方法。本标准适用于:-用于在水中和水中进行测量的水听器 超声波频率范围高达40 MHz； -采用圆形压电传感器元件的水听器， 设计用于测量脉冲波和连续波超声波 超声波设备产生的场； -以及具有或不具有水听器前置放大器的水听器。IEC 62127-1、IEC 62127-2和IEC 62127-3正在发布 同时。这些共同取消并取代IEC 60866:1987、IEC 61101:1991、IEC 61102:1991、IEC 61220:1993和IEC 62092:2001。2008年8月更正的内容已列入本副本。该标准的法文版尚未表决。 本合并版本由第一版（2007年）组成 及其修正案1（2013年）。因此，无须在 本出版物的补充。

IEC 62127-2:2007+A1:2013 specifies absolute hydrophone calibration methods and relative (comparative) hydrophone calibration methods. This standard is applicable to:
- hydrophones used for measurements made in water and in the ultrasonic frequency range up to 40 MHz;
- hydrophones employing circular piezoelectric sensor elements, designed to measure the pulsed wave and continuous wave ultrasonic fields generated by ultrasonic equipment;
- and hydrophones with or without a hydrophone pre-amplifier. IEC 62127-1, IEC 62127-2 and IEC 62127-3 are being published simultaneously. Together these cancel and replace IEC 60866:1987, IEC 61101:1991, IEC 61102:1991, IEC 61220:1993 and IEC 62092:2001. The contents of the corrigendum of August 2008 have been included in this copy. The French version of this standard has not been voted upon. This consolidated version consists of the first edition (2007) and its amendment 1 (2013). Therefore, no need to order amendment in addition to this publication.