The factors of flammability testing of no-halogen flame-retardant PE were investigated by testing methods of the oxygen index and the smoke density.
采用氧指数和烟密度分析方法，对无卤阻燃聚乙烯试样燃烧性能测试的影响因素进行了分析。
Based on this, it builds the index system and its evaluation pattern of PE education evaluation for bachelor graduates, and demonstrates the importance and necessity of doing so.
在此基础上，构建了体育教育本科毕业生社会评价指标体系及其评价模式，并对建立体育教育社会评价机制的重要性和必要性进行了论证。
PE has a limiting oxygen index(IO) value of 17.4, ABS has only 16.8. Therefore, the flame retardancy of them is very important in widening their application areas.
但它们均属于易燃材料，PE的氧指数为17.4，而ABS的氧指数仅为16.8，这极大的限制了他们的进一步应用。
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