三个纵向全厚度试样的火焰持续时间的平均值不大干60s且任何一个单次结果均无复燃现象。
Average Value of duration of flame of three full thickness test pieces does not exceed 60s and there is no reappeatance of flame for any individual test result.
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导静电性能：不大于3 x 108Ω
Static Conductivity:not over 3x108Ω
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