GB/T 11259-2008 in English

《GB/T 11259-2008无损检测 超声检测用钢参考试块的制作与检验方法》由TC56（全国无损检测标准化技术委员会）归口，主管部门为国家标准化管理委员会。
本标准规定了超声检测用合金参考试块的制作与检验规程。该试块为圆柱体形状,内含有平底孔(FBH),端面为声波进入平面。它可用于超声检测仪器和探头性能的测试,也可用于金属合金产品超声检测的校准与控制。该试块不仅适用于直接接触法,也适用于液浸脉冲回波超声法。
虽然本标准基本上是论述碳钢及合金钢试块的制作和检验,以及这些材料的检测,但是其制作和检验方法也适用于其他材料,如镍基合金?某些铝合金等的试块制备。当制作除碳钢及合金钢以外的材料的参考试块时,也许需要一些附加的规程和检验。在特定应用场合,本标准不排除一些规范以及认为必要的一些附加补充要求。

Scope

This standard specifies the procedures for the manufacture and inspection of alloy reference blocks for ultrasonic testing. The test block is in the shape of a cylinder with a flat-bottomed hole (FBH) inside, and the end face is the sound wave entry plane. It can be used for testing the performance of ultrasonic testing instruments and probes, as well as for the calibration and control of ultrasonic testing of metal alloy products. The test block is not only suitable for direct contact method, but also suitable for liquid immersion pulse echo ultrasonic method. Although this standard basically discusses the manufacture and inspection of carbon steel and alloy steel test blocks, as well as the testing of these materials, its manufacturing and inspection methods are also applicable to test blocks of other materials, such as nickel-based alloys, certain aluminum alloys, etc. preparation. When making reference blocks of materials other than carbon and alloy steels, some additional procedures and inspections may be required. In specific applications, this standard does not exclude some specifications and some additional supplementary requirements that are considered necessary.