本国际标准描述了使用适当的标准校准试块验证超声波设备（即第1部分和第2部分中定义的组合仪器和探头）性能的方法和验收标准。这些方法并不旨在证明设备对特定应用的适用性。所述方法适用于在现场或车间条件下工作的操作员。该方法仅适用于使用Ascan显示的脉冲回波设备，增益控制或衰减器在 步长不大于2分贝，主要用于接触测试。这些方法专门用于手动测试设备。 对于自动化测试，可能需要不同的测试来确保令人满意的性能。

This document specifies methods, tolerances and acceptance criteria for verifying the performance of combined ultrasonic test equipment (i.e. instrument, probes and cables connected) by the use of appropriate standard calibration blocks. These methods are specifically intended for manual test equipment, i.e. ultrasonic instruments according to ISO 22232-1, and for manual ultrasonic non-destructive testing with single- or dual-transducer probes according to ISO 22232-2. This document is also applicable for multi-channel instruments. For automated test equipment, different tests can be needed to ensure satisfactory performance. The specified methods are intended for the use by operators working under site or shop floor conditions. These methods are not intended to prove the suitability of the equipment for particular applications. This document excludes ultrasonic instruments for continuous waves. This document also excludes ultrasonic phased array systems, see e. g. ISO 18563-3. If a phased array instrument is used in combination with single- or dual-transducer probes, this document is applicable to this combination.