1.1这些试验方法描述了通过夏比（简支梁）试验和悬臂梁（悬臂梁）试验对金属材料进行的缺口棒冲击试验。它们给出了以下要求:试样、试验程序、试验报告、试验机（见附录A1）验证夏比冲击试验机（见附录A2）、可选试样配置（见附录A3）、预裂纹夏比V形缺口试样（见附录A4）、试样方向的指定（见附录A5），并测定断裂冲击试样表面的剪切断裂百分比（见附录A6）。 此外，还提供了缺口棒冲击试验的重要性（见附录X1）、测量冲击中心的方法（见附录X2）和夏比V型缺口验证试样的可用性（见附录X3）方面的信息。 1.2这些试验方法没有解决与-196°C（-320°F，77°K）以下温度下的冲击试验相关的问题。 1.3以国际单位制表示的数值应视为标准。英寸-磅单位仅供参考。 1.4 本标准并非旨在解决与其使用相关的所有安全问题（如有）。 本标准的用户有责任在使用前制定适当的安全和健康实践，并确定监管限制的适用性。 第5节给出了具体的预防说明。

1.1 These test methods describe notched-bar impact testing of metallic materials by the Charpy (simple-beam) test and the Izod (cantilever-beam) test. They give the requirements for: test specimens, test procedures, test reports, test machines (see Annex A1) verifying Charpy impact machines (see Annex A2), optional test specimen configurations (see Annex A3), precracking Charpy V-notch specimens (see Annex A4), designation of test specimen orientation (see Annex A5), and determining the percent of shear fracture on the surface of broken impact specimens (see Annex A6). In addition, information is provided on the significance of notched-bar impact testing (see Appendix X1), methods of measuring the center of strike (see Appendix X2), and the availability of Charpy V-notch verification specimens (see Appendix X3). 1.2 These test methods do not address the problems associated with impact testing at temperatures below -196 °C (-320 °F, 77 °K). 1.3 The values stated in SI units are to be regarded as the standard. Inch-pound units are provided for information only. 1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Specific precautionary statements are given in Section 5.