Medical mouth mask flame retardant property tester operation process Medical mouth mask flame retardant property testerInstrument characteristics： 1. The mask fixture is a metal human head mold, which can simulate the actual use situation of the mask. 2. The burner is equipped with a combustible gas interface, such as propane (liquefied gas). 3. Burner height is adjustable. 4. Burner could be timing and positioning automatic. 5. Burning time and flame retardant time are automatically recorded and displayed digitally 6. Mask Flame Retardant Tester is equipped with flame temperature measuring probe and flame temperature display. Medical mouth mask flame retardant property tester operation process: 1. Plug in the power socket on the back cover of the instrument to turn on the power supply, connect the air inlet to the propane bottle, and open the gas bottle valve to connect to the gas source. 2. Close the front door of the combustion test chamber, and put the "power" switch to t...