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What is the E 84 tunnel test and how does it apply to flooring?

flooring Test tunnel
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What is the E 84 tunnel test and how does it apply to flooring?

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The E 84 Tunnel Test has been retired many years ago as a floor covering flammability test. However, it continues to be the most widely used surface flame spread test for wall and ceiling finishes. It was never designed to be a floor covering test and was only adopted for floors as an interim test method. THERE ARE NO CORRELATIONS BETWEEN E-84 DATA AND FLOORING RADIANT PANEL DATA, i.e. a Class A in the E 84 Tunnel Test does not imply a Class I rating in the ASTM E 648, or vice versa.

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