GB/T 2423.9-2001 in English

《GB/T 2423.9-2001电工电子产品环境试验 第2部分:试验方法 试验Cb:设备用恒定湿热》由TC8（全国电工电子产品环境条件与环境试验标准化技术委员会）归口，主管部门为中国电器工业协会。
本标准用于确定电工电子产品，主要是指设备在高温条件下使用和储存的适应性。本试验主要用以观察试验样品在恒定温度、无凝露、经规定时间及高湿环境下的影响。本试验有数种不同温度、湿度和试验持续时间的严酷等级供选择使用。本试验可用于散热型及非散热型试验样品。本试验特别适用于大型设备或试验时可能与试验室外的测试装置有复杂连接的设备。这种连接需要一定的装配时间。在安装期间，可以不用预热或维持特定的试验条件。

Scope

This standard is used to determine electrical and electronic products, mainly referring to the adaptability of the equipment for use and storage under high humidity conditions. This test is mainly used to observe the influence of test samples under constant temperature, no condensation, specified time and high humidity environment. The test is available in several severity levels with different temperature, humidity and test durations. This test can be used for heat-dissipating and non-radiating test samples. This test is especially suitable for large equipment or equipment that may have complex connections with test equipment outside the laboratory during the test. This connection requires some assembly time. During installation, there is no need to warm up or maintain specific test conditions.