The Genesis Residual Seal Force Tester measures residual seal forces on parenteral vials sealed with stoppers, lined seals and aluminum caps. The aluminum caps can be plain aluminum, or aluminum with plastic buttons, though it is highly recommended that the plastic buttons be removed prior to testing. Other cap materials and styles may be accommodated as specialty applications. Specialty applications should be submitted to Genesis engineering for evaluation. Vials with diameters of 8mm to 88mm, and heights (including vial, stopper and cap) up to to 7.25 inches are accommodated. A wide variety of cap styles and sizes can be accommodated with specific cap anvils. Cap sizes including 7.5, 8, 10, 11, 13, 16.5, 17, 18, 20, 28, 30, 32, and 43 mm are supported. Residual seal forces in the range of 3 Lbf to 35 Lbf can be measured.