Remember to check and maintain the extinguisher regularly. Don't smoke when handling fuels. Turn off engines, electrical appliances and pilot lights while refuelling equipment. Remain in attendance at the site. Be aware of and control any nearby sources of ignition while refuelling.
Static electricity is also a form of ignition.
Two common causes of static electricity are the movement of grain through an auger and the movement of vehicles or machinery. Any time there is an imbalance in electrical charges between two objects, a spark can occur when they come in contact or close proximity. If the gasoline nozzle is the contact point between the fuel storage tank and a static-charged vehicle or farm machine, a spark may ignite any fuel vapors present. Don't use gasoline as a cleaning or degreasing agent. Safer products, specifically designed for these jobs, are available.