Single burning instrument (SBI) was measured supplies (excluding floorings) performance at a single burning heat invasion conditions. Samples are placed inside the sliding flame (methane combustion sandbox boxes), under the exhaust pipe. Sample combustion reaction condition to accept dual monitor machine and visually. Heat and smoke release rate assessment instruments detect objects by observing performance.The sample is placed on a movable cart located under the exhaust system, and the combustion reaction of the sample can be automatically displayed and visible. By calculating the heat release rate (HRR), smoke release rate (SRR) to evaluate the combustion characteristics of the material, and other physical properties evaluated by visual observation. SBI measurement range, the fire growth rate index (FIGRA) is the most representative measure factors; in addition, there are factors measuring oxygen consumption representative, CO/CO2 generation amount, smoke growth rate index (SMOGRA) and so on. Maximum heat release rate can reach 1MW.