This document specifies a method of testing to determine the propensity of a conveyor belt to generate heat flame or glow when held stationary@ under a given tension@ in surface contact around a rotating driven steel drum. It describes means of varying the conveyor belt tension. NOTE For conveyor belts containing steel reinforcement@ it may not be possible to conduct this test in full due to the inability of the conveyor belt to comply with the requirements of 7.2. In this case@ premature termination according to 7.3 can be necessary.