1.1 本试验方法涵盖了一种稳态技术，用于测定厚度小于25的碳材料的热导率 该测试方法适用于热导率约在1<λ<30 W/（m·K）范围内（热阻在10至400×10范围内）的均质材料 −4 m 2. ·K/W）在大约150的温度范围内 K至600 K.它可以在这些范围之外使用，对于较厚的试样和高达60的热导率值，精度会降低 W/（m·K）。 注1: 不建议使用此测试方法测试石墨阴极材料。石墨烯通常具有非常低的热阻，待测试样品和仪器之间的界面变得比样品本身更重要。 1.2 该试验方法在概念上与试验方法相似 E1530 和 C518 已经非常注意确保接触表面的热阻最小化并且可再现。 1.3 以国际单位制表示的数值被视为标准。 1.3.1 例外 括号中给出的值仅供参考。 1.4 本标准并不旨在解决与其使用相关的所有安全问题（如有）。本标准的使用者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。 1.5 本国际标准是根据世界贸易组织技术性贸易壁垒委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认的标准化原则制定的。 ====意义和用途====== 5.1 该测试方法旨在测量和比较受控条件下材料的热性能及其保持所需导热水平的能力。

1.1 This test method covers a steady-state technique for the determination of the thermal conductivity of carbon materials in thicknesses of less than 25 mm. The test method is useful for homogeneous materials having a thermal conductivity in the approximate range 1< λ < 30 W/(m·K), (thermal resistance in the range from 10 to 400 × 10 −4 m 2 ·K/W) over the approximate temperature range from 150 K to 600 K. It can be used outside these ranges with reduced accuracy for thicker specimens and for thermal conductivity values up to 60 W/(m·K). Note 1: It is not recommended to test graphite cathode materials using this test method. Graphites usually have a very low thermal resistance, and the interfaces between the specimen to be tested and the instrument become more significant than the specimen itself. 1.2 This test method is similar in concept to Test Methods E1530 and C518 . Significant attention has been paid to ensure that the thermal resistance of contacting surfaces is minimized and reproducible. 1.3 The values stated in SI units are regarded as standard. 1.3.1 Exception— The values given in parentheses are for information only. 1.4 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. 1.5 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 ====== 5.1 This test method is designed to measure and compare thermal properties of materials under controlled conditions and their ability to maintain required thermal conductance levels.