1.1 本规程描述了一种在烘箱中对新轮胎进行实验室老化的方法，以使安全带边缘的某些化学和物理特性发生变化，类似于在用轮胎的化学和物理特性（参见 附录X1 ). 1.2 本规程是实施ASTM标准车轮试验方法的先驱，该方法用于实验室生成径向客车和轻型卡车轮胎的安全带分离。 1.3 这种做法可能不会在轮胎的任何部分（安全带边缘除外）产生具有代表性的化学和物理特性变化。 1.4 以国际单位制表示的数值应视为标准。括号中给出的值仅供参考。 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。 有关具体的预防说明，请参阅第节 8. . 1.6 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 本标准实施规程建立了在烘箱中对子午线乘客轮胎或轻型卡车轮胎或两者进行加速实验室老化的方法。 5.2 本规程的目标是为轮胎的加速实验室老化定义一个科学有效的方案，以使其某些材料性能与在用轮胎的材料性能相关（见 附录X1 ). 本规程不确定轮胎规格的性能极限或公差。

1.1 This practice describes a method to laboratory age a new tire in an oven to produce changes in certain chemical and physical properties at the belt edges similar to those of tires in-service (see Appendix X1 ). 1.2 This practice is a precursor to conducting an ASTM standard roadwheel test method for laboratory generation of belt separation in radial passenger car and light truck tires. 1.3 This practice may not produce representative chemical and physical property changes in any part of the tire except the belt edge. 1.4 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only. 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. For specific precautionary statements, see Section 8 . 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 This standard practice establishes a method for conducting accelerated laboratory aging of radial passenger or light truck tires, or both, in an oven. 5.2 The goal of this practice is to define a scientifically valid protocol for the accelerated laboratory aging of a tire such that certain of its material properties correlate to those of in-service tires (see Appendix X1 ). This practice does not establish performance limits or tolerances for tire specifications.