DIN EN 934-2/A2:2006
混凝土、砂浆和灌浆用添加剂.第2部分:混凝土添加剂.定义、要求、合格性、标记和标签.德文版本EN 934-2-2001/A2-2005
Admixtures for concrete, mortar and grout - Part 2: Concrete admixtures - Definitions, requirements, conformity, marking and labelling; German version EN 934-2:2001/A2:2005