环境试验 第3-4部分：支持文件和指南 湿热试验

[中文适用范围]： IEC 60068 的这一部分提供了必要的信息，以协助准备相关规范，例如组件或设备的标准，以便为特定产品以及在某些情况下的特定应用类型选择适当的测试和测试严格程度。湿热测试的目的是确定产品承受高相对湿度环境中发生的应力的能力，无论有或没有冷凝，并且特别考虑电气和机械特性的变化。湿热测试也可用于检查样品对某些形式的腐蚀攻击的抵抗力。 [外文原描述]： IEC 60068-3-4:2001 Provides the necessary information to assist in preparing relevant specifications, such as standards for components or equipment, in order to select appropriate tests and test severities for specific products and, in some cases, specific types of application. The object of damp heat tests is to determine the ability of products to withstand the stresses occurring in a high relative humidity environment, with or without condensation, and with special regard to variations of electrical and mechanical characteristics. Damp heat tests may also be utilized to check the resistance of a specimen to some forms of corrosion attack.