分析比较了GB/T 229—2007，ISO 148-1：2016，ASTM E23：2018，JIS Z 2242：2018等国内外夏比摆锤冲击试验方法标准对夏比V型冲击试样的几何参数、加工允许偏差、表面粗糙度、试样标记等的主要技术要求，找出了各标准对试样加工要求的主要差异点，并为GB/T 229—2007标准的修订和各标准在试验室中的应用提出了建议。结果表明：ISO 148-1：2016，JIS Z 2242：2018，ASTM E23：2018标准对冲击试样几何尺寸的名称、符号定义更为准确；ASTM E23：2018标准则对缺口角度、缺口底部高度、试样纵向面间夹角及与轴线平行且垂直于高度方向的尺寸等的公差限定更为严格，而对试样长度和缺口到端面的距离等尺寸公差要求相对宽松；对于试样加工面的表面粗糙度和试样标记，ASTM E23：2018标准的要求较其他标准更严格、具体。

The main technical requirements of the domestic and overseas Charpy pendulum impact test method standards such as GB/T 229—2007, ISO 148-1:2016, ASTM E23:2018, JIS Z 2242:2018 on the geometric parameters, processing tolerance, surface roughness, sample marking and so on of the Charpy V-notch impact sample were analyzed and compared. The main differences of the processing requirements of samples in standards were found out, and suggestions for the revision of GB/T 229—2007 and the application of standards in the laboratory were put forward. The results show that the ISO 148-1:2016, JIS Z 2242:2018, ASTM E23:2018 standards are more accurate in defining the names and symbols of the geometric dimensions of the impact specimen. ASTM E23:2018 standard is more strict in defining the tolerance such as notch angle, notch bottom height, the angle between longitudinal faces of specimen and the dimension parallel to axis and perpendicular to height, while the dimensional tolerance requirements for the length of specimen and the distance between notch and end face are relatively loose. For the surface roughness and specimen marking of the machined surface of specimen, the requirements of ASTM E23:2018 standard are more strict and specific than other standards.