1.1 本规程描述了使用差示扫描量热法确定放热反应“模型”的程序。该程序通常在环境温度至600°C的温度范围内对1 mg至3 mg的试样尺寸进行。 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 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。 1.4 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 有关反应模型的信息有助于选择适当的方法（和测试方法）来评估动力学参数。 n th级反应可通过试验方法等换算方法进行处理 E698 和 E2890 . 通过试验方法处理自催化反应 E2070年 . 5.2 本规程可用于研究、法医分析、故障排除、产品评估和潜在危险评估。

1.1 This practice describes a procedure for determining the “model” of an exothermic reaction using differential scanning calorimetry. The procedure is typically performed on 1 mg to 3 mg specimen sizes over the temperature range from ambient to 600 °C. 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 Information concerning the reaction model aids in the selection of the appropriate method (and test method) for evaluation of kinetic parameters. n th order reaction may be treated by isoconversion methods such as Test Methods E698 and E2890 . Autocatalytic reactions are treated by Test Methods E2070 . 5.2 This practice may be used in research, forensic analysis, trouble shooting, product evaluation, and hazard potential evaluation.