DIN EN 81346-1:2010 工业系统、设施、设备和工业产品.结构原则和基准标识.第1部分:基本准则(IEC 81346-1-2009).德文版本EN 81346-1-2009
Industrial systems, installations and equipment and industrial products - Structuring principles and reference designations - Part 1: Basic rules (IEC 81346-1:2009); German version EN 81346-1:2009