NFPA 255 建材表面燃烧特性方法
日期:2012-02-10 14:37
g Characteristics of Building Materials is referenced by the NFPA 101 Life Safety Code and building codes as the test procedure to be used for establishing the values associated with a material's flame spread and smoke density indexes, when used as interior wall and ceiling finishes.
This test procedure is used to determine the comparative burning characteristics of the material under test by evaluating the flame spread over its surface to two known items. The smoke density is also recorded duri
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