DIN EN 12952 Bb.1:2002 水管锅炉和辅助设备.第17部分:独立于制造商的检验机构参与检验的指南; 德文版本 CEN/CR 12952-17:2002
Water tube boilers and auxiliary installations - Part 17: Guidelines for the involvement of an inspection body independent of the manufacturer; German version CEN/CR 12952-17:2002