Industrial systems, installations and equipment and industrial products. Structuring principles and reference designations. Application rules for a reference designation system— 56 стр.
Classification and designation of documents for plants, systems and equipment - Part 1: Rules and classification tables (IEC 61355-1:2008) (english version)
Industrial systems, installations and equipment and industrial products - Identification of terminals within a system (IEC 61666:2010) (english version)