ETSI PRETS 300 019-2-4-1994 设备工程(EE).电信设备的环境条件和环境测试.第2-4部分:环境测试规范.在无气候保护的地点固定使用
Equipment Engineering (EE); Environmental Conditions and Environmental Tests for Telecommunications Equipment Part 2-4: Specification of Environmental Tests Stationary Use at Non-Weatherprotected Locations