Laserfiche WebLink
RINGS OF FIRE <br /> A thermographer was used to record <br /> temperatures of the full scale test burn. <br /> The instrument was calibrated to a <br /> minimum temperature of 620 degrees and <br /> a maximum of 1,103 degrees centigrade. <br /> The black line in the color spectrum <br /> corresponds to the black spots in the <br /> picture. The temperature of these spots <br /> isolated at 1,101 degrees centigrade. <br /> 30 <br />