electric resistance (hot-wire) type and shall position the heated section of the ignitor in the aperture of the test cover in the same manner as the gas flame device.
A1.1.2.4 Pilot Flame—A pilot flame shall be provided for automatic relighting of the exposure flame. A bead 4 mm (5⁄32 n.) in diameter can be mounted on the cover so that the size of the test flame can be regulated by comparison. The tip of the pilot flame shall have an opening the same size as the tip of the flame exposure device (0.69 mm to 0.79 mm (0.027 in. to 0.031 in.) in diameter).