36.3 The pan, which provides the fi

36.3 The pan, which provides the fire containment, is to be constructed of steel of sufficient thickness to prevent warping during the course of the 20-min test. The upper lip is to have a steel angle welded all around or similar reinforcement to prevent warping during testing. The pan is to be sized, in relation to the DUT support surface, to provide a nominal 61-cm above the hydrocarbon fuel surface and its height should be 20.3 – 39.4 cm in height to accommodate the fuel and water levels. A threaded fitting for the fuel supply shall be centered on the long side of the pan and be located no more than 2.54 cm from the bottom of the pan. There should be nominally 15.24 cm of water in the pan prior to adding the hydrocarbon fuel to protect the fuel pan and to provide for consistent flame outputduring the test. The fuel shall be added as needed during the test to provide sufficient fuel for the test duration.36.3.1 A suitable means to extinguish the fire in the fuel pan within 15 s, or remove the battery from above the fire, shall be provided. This may be accomplished by drawing a cover over the pan, or by moving the DUT from over the pan or removing the pan as putting the fire out may be difficult and should not be underestimated.36.4 The DUT is to be fully supported centered above the fire containment pan above the surface of the heptane. The DUT support structure is to be robust enough to withstand the weight of the DUT for the duration of the test without allowing the DUT to lean or topple. The pan is to be sized large enough to cover the dimension of the DUT. See Figure 36.1 for details of set up.