NF Z87-019-2-8:2020 Environmental Engineering (EE) - Environmental conditions and environmental tests for telecommunications equipment - Part 2-8 : specification of environmental tests - Stationary use at underground locations (V2.2.1)
2020NF Z87-019-2-8:2020 Environmental Engineering (EE) - Environmental conditions and environmental tests for telecommunications equipment - Part 2-8 : specification of environmental tests - Stationary use at underground locations (V2.2.1)