Oxygen index is safe burning oxygen demand data, which is the data to the difficulty of the burning. High oxygen index shows that it is not easy burning, low oxygen index data from master simple incineration, national standard request, B1 level oxygen index level 32, 0 or more oxygen index 39 or as a qualified, and the oxygen index for 37.4 or higher, reach and surpass the national standards, check the data near zero order specification, flame retardant materials. Fire rating is the national standard and norms on the basis of fire risk factors, established by is burned for data function, the amount of smoke a limit specifications, including data function of the burn is a resolution by the oxygen index.
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