IEC 62127-2:20 07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: -水听器，用于在水中和高达40兆赫的超声波频率范围内进行测量； -采用圆形压电传感器元件的水听器，设计用于测量由超声设备产生的脉冲波和连续波超声场； -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正在同时发布。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。

IEC 62127-2:2007 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.