prEN 81346-2:2025

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