You can't call at the gas station. Why? Can I send a message?

When the concentration of gasoline in the air exceeds 1.3% to 6%, an explosion will occur. Especially in summer, the temperature is high, the gasoline volatilizes quickly, and the gasoline concentration in gas stations is high. When it reaches a certain concentration, any tiny spark or static electricity invisible to the naked eye will cause an explosion. Therefore, all electrical appliances in gas stations should have fire-proof and explosion-proof functions, even electric lights. However, the mobile phones (including CDMA mobile phones) currently on the market have no explosion-proof function, so the electrostatic spark will be generated at the moment when the button is pressed, which is easy to explode. When the mobile phone presses the switch, it will produce a slight spark; Some old mobile phone lines are aging, and sparks may appear during use. If a considerable concentration of combustible gas had accumulated in the air at that time, an explosion would have occurred. Although there is no relevant evidence to prove it at present, it is inferred that when a vehicle is refueled, when a gas station injects gasoline into the fuel tank of a car or motorcycle through an oil gun, the oil and gas in the original empty fuel tank will float outward, and the newly injected gasoline will also volatilize into the air, which will suddenly increase the oil and gas density around the refueled vehicle. At this time, if you make a phone call or answer a phone call nearby, the electronic friction generated by the mobile phone in the state of transmitting or receiving signals may ignite the fuel vapor and cause an explosion.