DS/EN IEC 60721-3-4:2019现行
Classification of environmental conditions – Part 3-4: Classification of groups of environmental parameters and their severities – Stationary use at non-weatherprotected locations
出版：Danish Standards
专家解读视频
This International Standard classifies groups of environmental parameters and their severities to which products are subjected when installed for stationary use at non-weather protected locations.
EN IEC 60721-3-4:2019 - Identical
IEC 60721-3-4 : 2019 - Identical
IEC 60721-3-4 : 2019 - Identical
EN IEC 60721-3-4:2019 - Identical
