Fuels Lab
Staff Sgt. Benedict Barroga, 161st Logistics Readiness Squadron fuels technician, analyses fuel as part of a fuel quality control test, 161st Air Refueling Wing, Phoenix, Jan. 29, 2015. This test ensures fuel additives are present and in the specified quantities. The fuel is tested when the base initially received it, as well as twice a month, to ensure that the fuel received here meets the highest standards required by the U.S. Air Force. (U.S. Air National Guard photo by Tech. Sgt. Michael Matkin/Released)