Astm E648, Iso9239, Flooring Radiant Panel Test Apparatus For Measuring Flame Spread, Flooring Radiant Heat Flux Fire Tester,Building Materials Testing Equipment .Common indoor flooring materials include tufted carpets, wooden floors, PVC coiled floors, anti-static floors, etc. Indoor flooring materials are used in building interior decoration, and the burning performance of indoor flooring materials is one of the fire hazards and an important factor in the spread of fire. Therefore, it is a very important fire protection index to use the radiant heat flux test device for floorings materials to evaluate the burning performance of indoor floorings materials. What is the test method for the burning performance of indoor floorings materials? During the burning performance test of indoor floorings materials, in the test burning chamber, a small flame is used to ignite floorings materials placed horizontally and exposed to an inclined heat radiation field to evaluate its flame propagation ability. Before the test, install the simulated sample of calcium silicate board with length mm, width mm, thickness 20mm, density kg/m³ without coating layer according to the figure, and open 9 mm round holes in the simulated sample according to the range of 110mm ~ 910mm in Figure 2. Then, when the exhaust fan is turned on and the door of the test piece is closed, the gas flow rate in the pipe of the box is adjusted to ms. After igniting t