JL-MDF-1 type flame retardant wood raft method burning test device
Introduction: JL-MDF-1 type flame retardant wood raft combustion test device is a test device developed according to the public safety industry standard of the People's Republic of China GA/T42.1 "Test method for fire-retardant wood burning performance - Muxi method" . The MDF-1 flame retardant wood raft burning test device is suitable for testing the burning quality loss rate of wood actually used in various production and engineering with a thickness of 20mm or more under the specified combustion conditions. There is a burning time. Technical Parameters: 1, ambient temperature: room temperature ~ 35oC 2. Ambient humidity: ≤70% 3, working voltage: AC 220 ± 10V 4. Gas source: natural gas, liquefied petroleum gas 5, timing accuracy: 3min ± GA / T 42.1 flame retardant wood burning performance test method raft method 0.1s 6, temperature error: 310oC ≤ ± 10oC experiment procedure: 1. Weigh each set of test pieces after adjustment to the nearest 0.1g. 2. A set of test pieces are arranged in a shape of a well on the test piece bracket, two pieces per layer, with a spacing of 25 mm, a total of 12 layers, and the first layer is placed at a low position of the test piece bracket, and arranged neatly. 3. Turn on the power and connect to the reset button. The Bunsen burner is moved to the ignition. 4. Turn on the gas, adjust the needle valve, press the ignition switch, ignite the Bunsen burner, and adjust the needle valve to make the flame height about 250mm. 5. Press the RUN button and move the Bunsen burner to the center of the flame protection cover to adjust the mixture so that the temperature at the top opening of the protective cover reaches 310oC ± 10oC. Press the Escape button and the Bunsen burner will be returned to its original position. 6. Place the bracket with the test piece on the circular bracket, open the flame protection cover observation window, screw it to the center of the flame protection cover, close the observation window, press the running key, and move the Bunsen burner to the lower end of the test piece to ignite. When the countdown is 3 minutes, the Bunsen burner is automatically returned. At the beginning of the countdown, immediately observe the case of flaming combustion. If the combustion flame is extinguished, press the stop button to stop the timing and record the flaming burn time. 8, the flame burning time is less than or equal to 6min qualified, more than 6min unqualified. 9. After flaming combustion and igniting
Introduction: JL-MDF-1 type flame retardant wood raft combustion test device is a test device developed according to the public safety industry standard of the People's Republic of China GA/T42.1 "Test method for fire-retardant wood burning performance - Muxi method" . The MDF-1 flame retardant wood raft burning test device is suitable for testing the burning quality loss rate of wood actually used in various production and engineering with a thickness of 20mm or more under the specified combustion conditions. There is a burning time.
