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On the Criteria for Smoldering Ignition in the CFR 1632 Cigarette Test for Mattresses.


pdf icon On the Criteria for Smoldering Ignition in the CFR 1632 Cigarette Test for Mattresses. (720 K)
Ohlemiller, T. J.

NIST TN 1601; NIST Technical Note 1601; 27 p. November 2008.

Keywords:

mattresses; smoldering ignition; cigarettes; fire tests; regulations; ignition; bench scale tests; smoke emissions; flammability; experiments; temperature; smoldering combustion

Abstract:

The Sleep Products Safety Council is sponsoring a study at NIST of the viability of a bench-scale version of CFR 1632 (cigarette ignition of mattresses). In the context of this study, NIST was also asked by CPSC to look into the criteria used to decide the outcome (smoldering/non-smoldering) of such tests. Three markers were examined in 241 bench-scale tests conducted to date: existence of continued smoke emissions, extent of "charred" area progression away from the cigarette and the peak temperature of this charred area as seen by an infrared thermometer. All three of these markers were found to be useful in reaching an early decision as to the outcome of a test but certain precautions are necessary. Recommendations as to a viable procedure using these markers are made.