How To Use Vertical Flammability Tester

      Instrumentation industry development In the context of the global financial crisis, it is necessary to see the development of good momentum and prospects, and can not ignore the instrumentation industry problems and shortcomings. The only way to ensure that the environment under the instrumentation industry stable and healthy development. Instruments need to expand new areas, breakthroughs in scientific research and innovation ability is weak, this is the industry continued strong development.



Test procedure for vertical burning tester
1, test temperature and humidity: test in the temperature of 10 ~ 30 ℃ and relative humidity of 30% to 80% of the atmosphere.
2, connected to power and gas source.
3, the test chamber front door closed, press the power switch, the indicator light that power has been through, the condition switch on the flame height measurement position, open the gas supply valve, press the ignition switch, lit the ignition, with the valve adjustment The device adjusts the flame to a height of 40 mm ± 2 mm, and then places the condition switch on the test position.
4, check the continued burning, flame retardant timer is at zero.
5, the ignition time is set to 12s.
6, the sample into the sample folder, the sample should be along the lower edge of the sample folder should be flush with the bottom, open the  Vertical Flammability test chamber door, the sample holder together with the sample hanging in the test chamber.
7, close the door, then the power indicator should be bright, according to the ignition switch, lit the ignition, to be 30s flame stability, press the start switch, so that the ignition is moved to the sample below, lit the sample. At this point from the sample from the sealed container to take out the time must be within lmin.
8,12s, the ignition back to the original position, the fuel burner start timing, to be continued to stop, immediately press the timer to stop the switch, the flame retardant timer began to wait until the flame stop, according to the timer stop switch The Read the burning time and flame retardant time, the reading should be accurate to 0.1 s.
9, when the test made of fusible fiber fabric, if the test sample in the combustion process has dissolved droplets, should be in the bottom of the box at the bottom of 10mm thick cotton. Note whether the melt off is caused by the burning or flame retardant of the absorbent cotton and recorded.
10, open the front door of the test chamber, remove the sample holder, remove the sample, first along the length of the carbonization of the direction of the fold, and then on the side of the sample side, from the bottom and side of about 6mm, hanging According to the quality of the unit area of ​​the weight of the selection of heavy hammer, and then slowly lift the sample at the bottom of the other side, so that heavy hammer floating, and then down, measuring the length of tear tear, that is, the length of damage, the results accurate to 1mm.
11, remove the vertical combustion tester in the test chamber debris, and start the ventilation equipment, remove the smoke and gas in the test chamber, and then test the next sample.

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