GB/T 11785-2005 Reaction to fire tests for floorings-Determination of the burning behaviour using a radiant heat source

The method standard is similar with EN ISO 9239-1

This standard specifies the performance assessment of the ground material combustion method. The method is burning in the test box, with a small flame ignited horizontally and exposed to 30 ° tilt in the heat radiation plate surface material, to assess their ability to fire spread. This method is suitable for a variety of ground materials (including substrate) of the combustion performance.

Based on the thermal radiation curve, the observed flame propagation distance converted KW/ Sample did not ignite or flame spread not more than 110mm, it's critical heat flux ≥ 11 KW/m2, sample flame spread distance of more than 910mm, it's critical heat flux ≤ 1.1 KW/m2.m2, calculating the critical heat radiation, accurate to 0.2 KW/m2.

Application GB/T 11785-2005 Fire testing materials

Flooring, floor coating materials
Rubber flooring, PVC flooring
Plastic flooring, plastic flooring
Carpet
Aluminum honeycomb panel
Other ground cover material

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