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.jpg "Flammability Tester(Vertivcal Burning Test) For Testing Lab")
CAT NO: DIDACTICNLE-Export-370003
Flammability Tester(Vertivcal Burning Test) For Testing Lab Workshop.
Flammability Tester(Vertivcal Burning Test) -
The method for classification of plastic sheets or bar materials of
94V-0, 94V-1, or 94V-2 grade flammability is based on the determination
of vertical burning characteristics of the material under test.
In
this test, a test specimen is held from its top with its longitudinal
axis lying in a vertical plane. A flame is applied for a specified
duration of time to the lower end of the test specimen and removed. As
soon as the material stops flaming the flame is applied once again for
the same duration of time and removed. The time taken by the flame to
extinguish, after the removal of the igniting flame and the duration of
glowing after second application of flame are determined to evaluate the
vertical burning characteristic of the material under test.
The Flammability Tester (Vertical Burning Test) for
determination of vertical burning characteristic of plastic consists of
a drought free enclosure, an arrangement to hold the test specimen from
its top in a vertical plane, a swivelable burner to apply the flame at
the tip of the test specimen, arrangement to move the burner so that its
tip can be brought vertically below the lower end of the test specimen
both with the burner axis being vertical and inclined at an angle of 45°
to the vertical, a pre-set type digital timer to measure the time of
application of flame, and a digital time interval meter to measure the
flaming and after glow times.
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