标准摘要
[中文适用范围]： 本标准规定了用于设置和检查超声波检测设备的2号校准块的尺寸、材料、制造和使用方法的要求。 [外文原描述]： This document specifies the requirements for the dimensions, material, manufacture and methods of use for calibration block No. 2 for setting and checking ultrasonic test equipment.
英文名称Non-destructive testing — Ultrasonic testing — Specification for calibration block No. 2