1.1 本试验方法涵盖在以下温度范围内从50 Hz到10 MHz测定固体电介质的相对介电常数（介电常数）和损耗因数: −80至500°C。 2. , 3. 包括以下两个程序: 1.1.1 程序A- 使用千分尺电极。 1.1.2 程序B- 使用精密电容器。 注1: 在常见用法中，“相对”一词经常被省略。 1.2 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的用户有责任在使用前制定适当的安全、健康和环境实践，并确定监管限制的适用性。 1.3 本国际标准是根据世界贸易组织技术性贸易壁垒（TBT）委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认标准化原则制定的。 ====意义和用途====== 4.1 介电常数和损耗因子对化学成分、杂质和均匀性的变化很敏感。因此，这些特性的测量有助于质量控制和确定环境的影响，如水分、热量或辐射。

1.1 This test method covers the determination of the relative permittivity (dielectric constant) and dissipation factor of solid dielectrics from 50 Hz to 10 MHz over a range of temperatures from −80 to 500 °C. 2 , 3 Two procedures are included as follows: 1.1.1 Procedure A— Using Micrometer Electrode. 1.1.2 Procedure B— Using Precision Capacitor. Note 1: In common usage the word “relative” is frequently dropped. 1.2 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.3 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. ====== Significance And Use ====== 4.1 Permittivity and dissipation factor are sensitive to changes in chemical composition, impurities, and homogeneity. Measurement of these properties is, therefore, useful for quality control and for determining the effect of environments such as moisture, heat, or radiation.