LST EN ISO 3834-5-2015 金属材料熔焊的质量要求. 第5部分: 有必要声明和ISO 3834-2, ISO 3834-3或ISO 3834-4质量要求一致的文件(ISO 3834-5-2015)
Quality requirements for fusion welding of metallic materials - Part 5: Documents with which it is necessary to conform to claim conformity to the quality requirements of ISO 3834-2, ISO 3834-3 or ISO 3834-4 (ISO 3834-5:2015)