Alcance
This part of IEC 81346 establishes classification schemes with defined object classes andtheir associated letter codes, and is primarily intended for use in reference designations andfor designation of generic types.The classification schemes are applicable for objects in all technical disciplines and allbranches of industry.This document is a horizontal publication also intended for use by technical committees inpreparation of publications related to reference designations in accordance with the principleslaid down in IEC Guide 108.