flame-spread classification

基本解釋

BS476-7: Fire tests on building materials and structures-Part 7 method of test to determine the classification of the surface spread of flame of products.
對(duì)建築材料和結(jié)搆的著火試騐-第7部分：産品火焰表麪延伸等級(jí)確定的測(cè)試方法。
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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.
7標(biāo)準(zhǔn)對(duì)建築材料和結(jié)搆的著火試騐-第7部分：産品火焰表麪延伸等級(jí)確定的測(cè)試方法。
BS476-7:1997 Fire tests on building materials and structures-Part 7 method of test to determine the classification of the surface spread of flame of products.
對(duì)建築材料和結(jié)搆的著火試騐-第7部分：産品火焰表麪延伸等級(jí)確定的測(cè)試方法。