1.1 本试验方法包括使用Flynn/Wall/Ozawa法和差示扫描量热法测定放热反应的总体动力学参数。 1.2 该技术适用于其行为可以用阿伦尼斯方程和一般速率定律描述的反应。 1.3 限制-- 在某些情况下，这种技术不适用。可以通过偏离直线的曲线来表示限制（参见 11.2 )或者等温老化试验与由计算的动力学值预测的结果不完全一致。特别是，该试验方法不适用于部分被抑制的反应。该技术可能不适用于包括同时或连续反应步骤的反应。如果在转变温度下反应速率显著，则该试验方法可能不适用于发生相变的材料。 1.4 以国际单位制表示的数值应视为标准。本标准中不包括其他计量单位。 1.5 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。 1.6 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 动力学参数与一般速率定律和反应焓相结合，可用于使用实践确定热危害 E1231 ( 1. ) 。 4.

1.1 This test method covers the determination of the overall kinetic parameters for exothermic reactions using the Flynn/Wall/Ozawa method and differential scanning calorimetry. 1.2 This technique is applicable to reactions whose behavior can be described by the Arrhenius equation and the general rate law. 1.3 Limitations— There are cases where this technique is not applicable. Limitations may be indicated by curves departing from a straight line (see 11.2 ) or the isothermal aging test not closely agreeing with the results predicted by the calculated kinetic values. In particular, this test method is not applicable to reactions that are partially inhibited. The technique may not work with reactions that include simultaneous or consecutive reaction steps. This test method may not apply to materials that undergo phase transitions if the reaction rate is significant at the transition temperature. 1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.5 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. 1.6 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 kinetic parameters combined with the general rate law and the reaction enthalpy can be used for the determination of thermal hazard using Practice E1231 ( 1 ) . 4