JIS C 60721-3-4:1997 Classification of environmental conditions Part 3: Classification of groups of environmental parameters and their severities Section 4: Stationary use at non-weatherprotected locations
This standard specifies the environmental parameters to which products installed outdoors are exposed and the classification of their severity.
JIS C 60721-3-4:1997 history
1997JIS C 60721-3-4:1997 Classification of environmental conditions Part 3: Classification of groups of environmental parameters and their severities Section 4: Stationary use at non-weatherprotected locations