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確定的測試方法。
www.fire-test.com
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確定的測試方法。
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確定的測試方法。