Senior Airman Aaron Graham drains JP-8 fuel from a refueling truck before testing it.
U.S. Air Force Senior Airman Aaron Graham, a fuels laboratory technician with the 28th Logistics Readiness Squadron, drains JP-8 fuel from a refueling truck before testing it at Ellsworth Air Force Base, S.D., on April 12, 2010. Graham conducts specific tests to ensure that fuels are clean and ready for use in Air Force equipment, vehicles and aircraft.