Minimum ignition temperature (MIT) tests were carried out on 10 different conveyor beltings to determine if this test is useful for assessing the fire-resistance of belting. In all but one case, two different MIT values were obtained for each product: a lower one, in which an exothermic reaction was observed, designated MITnon-fl and a higher one, in which the sample burst into flames, designated MTHfl. The correlation between these two parameters was poor, probably because of the different nature of fire-retardants incorporated into the various formulations. The correlation between both MIT's and the results of the large-scale tests is only fair; the oxygen index test proved to be a much better predictor of large-scale performance than either MIT, because both the oxygen index and large-scale tests measure primarily flame propagation, and the MIT's measure ignitability. The main usefulness of the MIT test would be to determine the ignitability of belting when exposed to a hot source.