I.S. EN 60721-3-9:1994现行
Classification Of Environmental Conditions Part 3: Classification Of Groups Of Environmental Parameters And Their Severities - Section 9: Microclimates Inside Products
出版：National Standards Authority of Ireland
专家解读视频
Specifies classes of microclimatic conditions, to which components (basic parts, assemblies, built-in units) may be subjected inside products, which are used under the climatic conditions as classified in sections IEC 60721-3-3 and IEC 60721-3-4.
UNE EN 60721-3-9:1996 - Identical
SS EN 60721-3-9:2001 - Identical
SN EN 60721-3-9:1993 - Identical
DIN EN 60721-3-9 (1995-08) - Identical
BS EN 60721-3-9:1993 - Identical
IEC 60721-3-9 Ed. 1.0 - Identical
