本標準給出了評定專用檢測設備的評定方法、評定要求、操作程序。 本標準主要適用于以監測幾何量參數的專用檢測設備（以下簡稱“設備”）。
Describes the method for evaluating performance characteristics and the method for periodic checks of the ultrasonic pulse-echo testing systems that are composed of the combination of the manually controlled ultrasonic test instrument having a basic display based on an ultrasonic pulse-echo technique and a probe.
