What happens when the mixture of combustible gas and air encounters a fire source?
The mixture of combustible gas and air may explode when encountering an ignition source. The mixture of combustible gas and air may not explode when encountering open fire, because when the ignition point of the mixture is lower than the lower limit or higher than the upper limit, neither explosion nor combustion can occur. However, if the mixture with a concentration higher than the upper limit of explosion leaves the closed container equipment or space, there is still a risk of combustion or explosion when encountering air again.
