1.1 本试验方法描述了使用65°C至420°C温度范围内加热和冷却时的转变温度差对差示扫描量热仪（DSC）进行冷却时的温度校准。在该温度范围内，加热和冷却实验之间的指示温度偏移，可用于在其他温度范围内冷却时提供温度校准。 1.2 以国际单位制表示的数值应视为标准值。本标准不包括其他计量单位。 1.3 试验方法 E3142 是该试验方法的替代方法。 1.4 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。 第节给出了具体的预防说明 6. . 1.5 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====== 5.1 该测试方法可用于校准DSC的温度信号，以进行冷却实验，例如在测试方法中确定结晶温度 D3418页 和试验方法 E794 . 5.2 本试验方法可用于研究、开发、分析、规范验收、质量保证和控制目的。

1.1 This test method describes the temperature calibration of differential scanning calorimeters (DSCs) on cooling using the difference between transition temperatures upon heating and cooling in the temperature range of 65 °C to 420 °C. An offset in the indicated temperature between heating and cooling experiments, within this temperature range, may be used to provide temperature calibration on cooling at other temperature ranges. 1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.3 Test Method E3142 is an alternative to this test method. 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. Specific precautionary statements are given in Section 6 . 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 useful in calibrating the temperature signal of a DSC for cooling experiments such as the determination of crystallization temperatures in Test Method D3418 and Test Method E794 . 5.2 This test method may be used for research, development, analytical, specification acceptance, quality assurance, and control purposes.