Standardized product ontology register and transfer by spreadsheets -- Part 5: Interface for activity description ( IEC 62656-5:2017) (english version)
Standard data element types with associated classification scheme for electric components - Part 4: IEC reference collection of standard data element types and component classes— 391 стр.
Industrial automation systems and integration -- Parts library -- Part 42: Description methodology: Methodology for structuring parts families— 240 стр.