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<p>Watermark: Fire Safety Academy logo icon, 70 px, 45 % opacity</p> <p><b>New page</b></p><div>== Summary ==<br /> Heat release rate of a burning foam sofa fitted by 0.1736 (t − 80)², compared with the standard fast and ultrafast t-squared fires. Based on Alpert (2002), p. 2-23 and Iqbal and Salley (2004), p. B-3.<br /> <br /> Original vector illustration for [[T-squared fire]], level 2 Intermediate.<br /> <br /> * Source basis: Alpert (2002), p. 2-23 (Equation 30 and Figure 2-2.3: redraw, do not copy); Iqbal and Salley (2004), p. B-3; National Research Council of Canada et al. (2005), p. 2.4-11 (incubation phase)<br /> * Alt text: Line chart: a sofa fire curve stays at zero for 80 s, then rises steeply between the standard fast and ultrafast curves.<br /> <br /> == Licensing ==<br /> New drawing by Fire Safety Academy. © Fire Safety Academy.</div>

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