In Booth 2647, Audit MicroControls Inc, Eatonton, Ga, will be showcasing its line of calibration verification and linearity controls with the Linearity FD set of general chemistry controls for Roche systems. The set of controls is designed to simulate human serum samples for determining linearity, calibration verification, and verification of the reportable range for quantitative assays performed on Roche clinical chemistry analyzers. The Linearity FD set is a lyophilized product comprising five levels and matching diluents that have a linear relationship to one another when assayed for albumin, alkaline phosphatase, ALT, amylase, AST, BUN, calcium, chloride, CO2, creatine kinase, creatinine, gamma-GT, glucose, iron, lactate, LDH, lipase, magnesium, phosphorus, potassium, sodium, total bilirubin, total protein, and uric acid. The product has an open-vial stability of 7 days when stored at 2–8°C. For more information, visit Audit MicroControls.