Question

怎样申请BS476英国防火等级Class 0

Answer 1

英国防火等级Class 0等级评定
首先进行BS476-7（BS476第七部分）火焰表面延伸等级：测试必须达到Class 1级（火焰延伸范围必须不大于165mm）。
再次进行BS476-6（BS476第六部分）火焰传播指数测试：要求火焰传播总指数, I≤12并且单个分指数i1 ≤6。

Answer 2

Class 0为BS 476-7评估级，同时需要执行BS 476-6和BS 476-7
BS 476-6 FIRE TESTS ON BUILDING MATERIALS AND STRUCTURES - PART 6: METHOD OF TEST FOR FIRE PROPAGATION FOR PRODUCTS
BS 476-7 FIRE TESTS ON BUILDING MATERIALS AND STRUCTURES - PART 7: METHOD OF TEST TO DETERMINE THE CLASSIFICATION OF THE SURFACE SPREAD OF FLAME OF PRODUCTS
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