flame-spread classification

基本解释

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.
对建筑材料和结构的著火试验-第7部分：产品火焰表面延伸等级确定的测试方法。
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标准对建筑材料和结构的着火试验-第7部分：产品火焰表面延伸等级确定的测试方法。
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.
对建筑材料和结构的着火试验-第7部分：产品火焰表面延伸等级确定的测试方法。