Definitions for "Flame spread rating"
Keywords:  oak, nfpa, spread, arbitrarily, astm
The surface burning characte in NFPA 101. spread. Capable of being ignited and of burning. Substance with a flash point below 100
An index or classification indicating the extent of spread of flame on the surface of a material, or an assembly of materials, as determined in a standard fire test as prescribed in building codes. (ASTM 84 Tunnel Test) The ratings are relative to solid red oak lumber, which is rated at 200.
measure of surface burning characteristics of materials, how fast a flame will spread across material