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Radiant Panel Test
The radiant panel test is a small-scale instrument used to measure combustibility and flame propagation
of materials subjected to a high heat flux. The test is used to qualify building materials, most commonly industrial flooring.
In some cases it is also used to qualify materials for use in public transportation, such as railroads, subways and commercial
aircraft (see related story).
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In the radiant panel test, described by ASTM E-162, the heat source is a 12 by 18 inch electrically heated panel, which
is placed in front of an inclined 6 by 18 inch specimen. The specimen is oriented so that ignition (by electric spark) is
forced near the upper edge with the flame front progressing downward. The factor derived from the rate of flame front
progression (ignition properties) and another relating to the rate of heat release are combined to provide a flame spread
index. Provision is sometimes made for measuring the smoke evolved during the test, but more commonly, smoke generation
is measured separately according to ASTM E662, the NBS smoke chamber.
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Although the Kemgard® laboratory does not currently operate a radiant panel test chamber,
we do have experience in helping customers pass flame-spread tests. We also have experience with cone calorimetry,
which is sometimes used to predict flame spread in larger scale tests. Should you need to pass the radiant panel test,
please contact us for recommendations.
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