WebFlame Spread Index = 5 Flame Spread Index should be specified by classification only, such as “25 or less”, or “26 to 75”. Reports of low FSI for like materials are the result of … WebThough different species of wood differ in their surface burning (flame-spread) rates, most wood products have a flame-spread rating less than 200 and are considered Class C or …
FLAME SPREAD INDEX - Proof In Performance
Webthe flame spread along a sample in order to determine the relative burning behavior of its material. Through the E84 test, both Flame Spread Index (FSI) and Smoke Developed … WebThe provisions of this chapter require materials used as interior finishes and decorations to meet certain flame spread index or flame propagation criteria and smoke development … dynamic engine parts \u0026 engineering
Fire-Resistant Decking Materials: What to Know TimberTech
WebThe flame spread index may depend on density, thickness, chemical composition, and surface characteristics. Finishes on the wood may affect the flame spread index depending on the ... West coast 60-75 - Maple (flooring) 104 157 Oak. red or white 100 - Pine: White 73 - Eastern white 85 122 Idaho white 72 123 Idaho. white, linseed oil base finish ... WebNov 19, 2024 · The flame spread index is a measure of how quickly the flame travels after the fire is initiated. The smoke development rating tells you how much smoke is produced over a period of time. ... For a Class B fire rating, the minimum flame spread is 26, and the maximum is 75. The smoke development must not surpass 450 to qualify as a Class B … WebDuring the 40 kW exposure, flames shall not spread to the ceiling. The flame shall not spread to the outer extremity of the sample on any wall or ceiling. Flashover, as defined in NFPA 286, shall not occur. The peak heat release … dynamic enhance enemy attributes