本标准规定了美国焊接协会认证专家级焊工的要求和程序。三级专家焊工的认证需要性能资质和实践知识测试。这些测试需要更详细的阅读、计算和手动技能才能完成。

This standard defines the requirements and program for the American Welding Society to certify expert level welders. The certification of Level III - Expert Welders requires performance qualification and practical knowledge tests. These tests require more detailed skills of reading, computational, and manual skills to complete.