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The heat release rate in unforced flaming combustion heat flux is postulated to be the material fire response governing performance in flammability tests. This intrinsic heat release rate is measured as the zero heat flux intercept in a plot of heat release rate versus external heat flux, the slope of which is the heat release parameter. Ignition resistance or self-extinguishing behavior in isolated flame (flammability) tests occurs when this intrinsic heat release rate falls below a critical value of about 100 kW/m2. This phenomenological approach correlates UL 94 and limiting oxygen index (LOI) data with fire calorimetry data and provides physical insight into the factors governing these tests.
The heat release rate in unforced flaming combustion heat flux is postulated to be the material fire response governing performance in flammability tests. This intrinsic heat release rate is measured as the zero heat flux intercept in a plot of heat release rate versus external heat flux, the slope of which is the heat release parameter. Ignition resistance or self-extinguishing behavior in isolated flame (flammability) tests occurs when this intrinsic heat release rate falls below a critical value of about 100 kW/m2. This phenomenological approach correlates UL 94 and limiting oxygen index (LOI) data with fire calorimetry data and provides physical insight into the factors governing these tests.
Ignition resistance of plastics
Lyon, Richard E. (author)
2003
11 Seiten, 22 Quellen
Conference paper
English
I-B Ignition Resistance of Plastics
British Library Conference Proceedings | 2002
|Flammability of plastics I: Ignition temperatures
Wiley | 1987
|British Library Online Contents | 2003
|