Ignition Properties of Common Materials

When q c = q g cri(, then Ts = Tig, and hence the material properties can be determined. We see these fitted effective properties listed in Table 7.5 for a variety of materials. Table 7.6 gives generic data for materials at normal room conditions. It can be seen that for generic plywood at normal room temperature kpc = 0.16(kW/m2 K)2s while under ignition conditions it is higher 0.5 (kW/m2 K)2 s. Increases in k and c with temperature can partly explain this difference. The data and property results were taken from Quintiere and Harkleroad [18]. 

An alternative form of an ignition correlation used in ASTM E-1321 follows from Equations (7.44) and (7.45)  

Fernandez-Pello, A.C., The solid phase, in Combustion Fundamentals of Fire, (ed. G. Cox), Academic Press, London, 1994. 

Quintiere, J.G., The application of flame spread theory to predict material performance, J. Research of the National Bureau of Standards, 1988 93(1), 61. 

and Greene, L.C., Relationship between pain and tissue damage due to thermal radiation, J. Applied Physiology, 1959, 14, 373-82. 

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