DIN EN 60721-1 (1997-02)现行
Classification Of Environmental Conditions - Part 1: Environmental Parameters And Their Severities
出版：German Institute for Standardisation (Deutsches Institut für Normung)
专家解读视频
97 [01/02/1997]
Supersedes DIN IEC 60721-1 (05/2002)
UNE EN 60721-1:1997 - Identical
SS EN 60721-1:2001 - Identical
NF EN 60721-1:1995 - Identical
I.S. EN 60721-1:1998 - Identical
IEC 60721-1 Ed. 2.2 - Identical
NBN EN 60721-1:1995 - Identical
BS EN 60721-1:1996 - Identical
SN EN 60721-1:1995 - Identical
