1.1 本规程的目的是为玻璃化转变温度提供可用于评估动态力学分析方法、装置和软件的公认参考值。 注1: 要求提供建议的额外或替代参考材料或值，并可提交给宾夕法尼亚州西康舍霍肯ASTM国际的E37员工经理考虑。 1.2 以国际单位制表示的值应被视为标准值。本标准不包括其他计量单位。 1.3 本标准并不旨在解决与其使用相关的所有安全问题（如果有的话）。本标准的使用者有责任在使用前建立适当的安全、健康和环境实践，并确定监管限制的适用性。 1.4 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 本规程提供的偏差或偏移温度值可用于校准或评估标准、仪器、技术或软件的性能。 注2: 建议至少每年对所有信号进行校准或校准验证。 5.2 玻璃化转变温度是加热速率的函数。在与校准不同的加热速率下观察到的值需要使用热滞后进行评估（见试验方法 E3142 ).

1.1 It is the purpose of this practice to provide accepted reference values for the glass transition temperature that may be used for evaluation of dynamic mechanical analysis methods, apparatus, and software. Note 1: Suggested additional or alternative reference materials or values are requested and may be submitted to the E37 Staff Manager at ASTM International, West Conshohocken PA for consideration. 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 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. 1.4 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 The bias or offset temperature value provided by this practice may be used to calibrate or to evaluation the performance of standard, apparatus, technique, or software. Note 2: Calibration or calibration verification is recommended for all signals at least annually. 5.2 The glass transition temperature is a function of heating rate. The observed values at a heating rate different from that of the calibration need to be assessed using thermal lag (see Test Method E3142 ).