1.1 本规程涵盖通过电弧焊制造和修理钢铸件的程序、焊工和操作员的资格认证。 1.1.1 根据ASME锅炉和压力容器规范第九节的规定，对程序和操作员或焊工中的一方或双方进行资格认证，应自动对程序和操作人员或焊工中一方或两者进行资格认证。ASME评定用贱金属分组中的P编号可能与中列出的类别编号不同 表1 提到 附录X1 用于将ASTM类别编号与相应的ASME P进行比较- 编号名称。 1.2 每个制造商或承包商负责其组织进行的焊接，并应进行必要的测试，以使其焊接程序、焊工和操作员合格。 1.3 每个制造商或承包商应保存焊接工艺评定测试的记录( 图1 )，焊工或操作员性能鉴定测试( 图2 )和焊接工艺规范( 图3 )，应根据要求提供给买方代表。 1.4 以国际单位制或英寸磅单位表示的数值应单独视为标准。 每个系统中规定的值可能不是完全相等的；因此，每个系统应独立使用。将两个系统的值结合起来可能会导致不符合标准。 1.4.1 国际单位制-- 在正文中，国际单位制显示在括号中。 1.5 本标准并不旨在解决与其使用相关的所有安全问题（如有）。本标准的使用者有责任在使用前制定适当的安全、健康和环境实践，并确定监管限制的适用性。 1.6 本国际标准是根据世界贸易组织技术性贸易壁垒委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认的标准化原则制定的。

1.1 This practice covers the qualification of procedures, welders, and operators for the fabrication and repair of steel castings by electric arc welding. 1.1.1 Qualifications of a procedure and either or both the operator or welder under Section IX of the ASME Boiler and Pressure Vessel Code shall automatically qualify the procedure and either or both the operator or welder under this practice. P-number designations in the ASME grouping of base metals for qualification may be different than the category numbers listed in Table 1 . Refer to Appendix X1 for a comparison of ASTM category numbers with the corresponding ASME P-number designations. 1.2 Each manufacturer or contractor is responsible for the welding done by his organization and shall conduct the tests required to qualify his welding procedures, welders, and operators. 1.3 Each manufacturer or contractor shall maintain a record of welding procedure qualification tests ( Fig. 1 ), welder or operator performance qualification tests ( Fig. 2 ), and welding procedure specification ( Fig. 3 ), which shall be made available to the purchaser's representative on request. 1.4 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the standard. 1.4.1 SI Units— Within the text, the SI units are shown in brackets. 1.5 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.