HD 478.3.4 : 200S1被替代
CLASSIFICATION OF ENVIRONMENTAL CONDITIONS - CLASSIFICATION OF GROUPS OF ENVIRONMENTAL PARAMETERS AND THEIR SEVERITIES STATIONARY USE AT NON-WEATHERPROTECTED LOCATIONS
出版：Harmonization Documents
专家解读视频
基本信息
标准编号： HD 478.3.4 : 200S1
标准类别：Standard
出版单位：Harmonization Documents
标准页数：0
等同采用的国际标准
NFC 20 000 : 90 AMD 1 93 - Identical
DIN IEC 60721-3-4 : 1989 - Corresponds
DIN IEC 60721-3-4 : 1989 - Identical
