The detection and control of flammable substances is a specialized safety training course that goes beyond basic monitor operation to teach the fundamental principles of flammable gas behavior and sensor technology. It focuses on mastering flammable substance chemistry, which includes analyzing flash points, vapour density, and both lower and upper explosive limits. The detection aspect covers understanding the operation of catalytic bead and infrared sensors, as well as their limitations and susceptibility to poisoning. Furthermore, it teaches workers how to interpret these readings accurately by distinguishing between true atmospheric readings, false positives, and oxygen-deficient environments.