Stability of thirteen commercial explosives is specified by means of isothermal and non-isothermal thermogravimetric analysis (TGA). There is a linear dependence between the positions of TGA onsets, or characteristic DTG peaks, and amounts of explosive samples used. Analysis of the dependence for TGA onsets gave results which are correlated with explosion temperatures. A relationship is also found with temperatures of explosive points (i.e. autoignition temperatures) for the explosives studied. In connection with the former correlation, a value of explosion temperature of 3360-degrees-C is assessed for Composition B. In the case of isothermally TGA of explosives which contain liquid nitroesters, evaporation of these liquid parts is confirmed as the dominant process in the resulting mass losses.