The article characterizes the notion of chemical resistance of glass and offers its classification. The influence of thermochemical treatment of fluorine-containing reagents on the chemical resistance of glass containers was investigated in industrial conditions. Difluorodichloromethane, difluorochloromethane, solution of hydrofluoric acid and ammonium fluoride were used in the experiments. There were developed two methods to improve the chemical stability of the glass containers. The possible mechanisms of changing the composition and structure of surface layers of container glass, subjected to fluorinecontaining reagents, were discussed.