This paper discusses the calibration of Capintec radionuclide calibrators for the measurement of (18)F in the pharmacy and clinic. In support of a planned regional comparison, a secondary laboratory was set up at Oak Ridge National Laboratories in Oak Ridge, TN. The laboratory was used to prepare 1mL (18)F-fluorodeoxyglucose sources in 3mL plastic BD syringes (Becton, Dickinson and Company, Franklin Lakes, New Jersey, USA) and to determine dial settings in three models of radionuclide calibrators. Measurements were verified by comparing radionuclide calibrator measurements of a 5mL ampoule source with previous results. The CIEMAT/NIST method of tritium efficiency tracing was used for activity determinations.