NF Z87-019-17:1995 Equipment engineering (ee). Environmental conditions and environmental tests for telecommunication equipment. Part 1-7 : classification of environmental conditions. Portable and non-stationary use.
1995NF Z87-019-17:1995 Equipment engineering (ee). Environmental conditions and environmental tests for telecommunication equipment. Part 1-7 : classification of environmental conditions. Portable and non-stationary use.