本文件规定了测定模制试样电阻的方法 聚丙烯和丙烯共聚物在空气中加热加速老化 强制通风烤箱。 该方法代表了一种估算丙烯制造零件使用寿命的尝试 塑料。 该方法测定的稳定性与材料的适用性没有直接关系 当不同的环境条件盛行时。 注:规定的热等级被认为足以导致商业级热失效- 在合理的时间内稳定的丙烯塑料。如果需要，可以采用较低的温度来评估热稳定性较低的丙烯塑料的性能。交叉引用:ISO 19069-2ISO 291ISO 1628-3ISO 1133-1ISO 19069-1购买时可用的所有当前修订版均包含在本文件的购买中。

This document specifies a method for the determination of the resistance of moulded test specimens of polypropylene and propylene-copolymers to accelerated ageing by heat in the presence of air using a forced draught oven. The method represents an attempt to estimate the service life of parts fabricated from propylene plastics. The stability determined by this method is not directly related to the suitability of the material for use when different environmental conditions prevail. NOTE The specified thermal levels are considered sufficiently severe to cause failure of commercial grades of heat-stable propylene plastics within a reasonable period of time. If desired, lower temperatures can be applied to estimate the performance of propylene plastics with lower heat stabilities.Cross References:ISO 19069-2ISO 291ISO 1628-3ISO 1133-1ISO 19069-1All current amendments available at time of purchase are included with the purchase of this document.