On the basis of experimental data obtained by various methods under high-te
mperature heating, it is shown that the probability of ignition and detonat
ion of explosives is a function of the degree of their decomposition. The t
emperature of transition from slow chemical decomposition to autocatalysis
is taken as a criterion of heating safety. The degree of decomposition corr
esponding to this temperature is the base point for the determination of th
e safety limit for each specific explosive based on known kinetic parameter
s.