ASTM D3241 Metal Calibration Standards

Pure metal calibration standards used in the JFTOT AutoCal Calibrator per ASTM D3241 (Thermal Oxidation Stability of Aviation Turbine Fuels). These calibration standards are available in pure lead or pure tin. Each piece of lead is 99.9% pure, measures 1/4" x 1/4" x 1/16" (weighing 0.5-0.7 grams each), and has an as rolled surface finish. Each piece of tin is 99.9% pure, measures 1/8" x 1/4" x 0.032", and has an as rolled surface finish. These calibration standards are sold separately in packs of ten (lead) or 5 grams (tin).