UL 94 - FLAMMABILITY

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The UL 94 flammability standard by UL is a
standard by which plastic materials can be
classified with respect to their ability to
withstand combustion. The rating of
flammability given to a plastic material
depends upon the response of the material to
heat and flame under controlled laboratory
conditions. The test results will give a good
indication of the material’s acceptability with
respect to flammability for a particular
application. The behaviour to heat and flame
of a thermoplastic depends on many factors
such as the size, form, and end-use of the
product, but also elements in the final
application such as ease of ignition, burning
rate, flame spread, fuel addition, intensity of
burning, will affect the combustion response
of the material.

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