UNE-EN IEC 81346-2:2019现行
Industrial systems, installations and equipment and industrial products - Structuring principles and reference designations - Part 2: Classification of objects and codes for classes (Endorsed by Asociación Espa?ola de Normalización in October of 2019.)
出版：Asociacion Espanola de Normalizacion
专家解读视频
This part of IEC 81346 establishes classification schemes with defined object classes and their associated letter codes, and is primarily intended for use in reference designations and for designation of generic types.
EN IEC 81346-2:2019 - Identical
IEC 81346-2 : 2019 - Identical
IEC 81346-2 : 2019 - Identical
EN IEC 81346-2:2019 - Identical
IEC 81346-2:2019 - Identical
