DIN EN ISO 3834-3-2006 金属材料熔焊的质量要求.第3部分:标准质量要求(ISO 3834-3-2005).德文版本EN ISO 3834-3:2005
Quality requirements for fusion welding for metallic materials - Part 3: Standard quality requirements (ISO 3834-3:2005); English version of DIN EN ISO 3834-3:2006-03