ISO 4577:1983 塑料.聚丙烯和丙烯共聚物.在空气中的氧化稳定性的测定.烘箱法

标准编号：ISO 4577:1983

中文名称：塑料.聚丙烯和丙烯共聚物.在空气中的氧化稳定性的测定.烘箱法

英文名称：Plastics — Polypropylene and propylene-copolymers — Determination of thermal oxidative stability in air — Oven method

发布日期：1983-08

标准范围

规定了一种测定丙烯和丙烯共聚物模制试样在强制通风烘箱中在100至150℃的规定温度下耐加速老化性的方法。建议使用旋转试样夹。-通过目视检查确定失效时间，并将其视为样本出现局部开裂、破碎和/或变色后的天数。可在几种温度下进行试验，并使用阿累尼乌斯关系解释数据。

Specifies a method for the determination of the resistance of moulded test specimens of propylene and propylene-copolymers to acclerated ageing at specified temperatures in the range from 100 to 150oC in a forced draught oven. Rotating specimen holders are recommended.- The time to failure is determined by visual examination and taken as the number of days after which a specimen shows localized crazing, crumbling and/or discoloration. The test may be conducted at several temperatures and the data interpreted by the use of the Arrhenius relation.

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