The electrical property of flame-retardant engineering plastics, especially comparative tracking index (CTI) is described.

这对阻燃型工程塑料的电性能，尤其是比较跟踪指数（CTI）进行了描述。

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Polyurethane foam in essence are highly flammable materials, do not make flame retardant processing the oxygen index is only 16.5%.

聚氨酯泡沫本质上属于高度易燃材料，未做阻燃处理时氧指数仅为16.5％。

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The flammability of leather was evaluated by the vertical flame test and Oxygen Index Test.

革的燃烧性能用垂直燃烧试验和氧指数进行表征。

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