UNE EN 60721-3-9:1996現行
Classification Of Environmental Conditions - Part 3: Classification Of Groups Of Environmental Parameters And Their Severities - Section 9: Microclimates Inside Products
出版：Asociacion Espanola de Normalizacion
專家解讀視頻
Defines classes of microclimatic conditions to which components may be subjected inside products. High relative air humidity and high air temperature are characteristics parameters for the microclimates. Also includes definitions.
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
I.S. EN 60721-3-9:1994 - Identical
SS EN 60721-3-9:2001 - Identical
