In US: For Research Use Only. Not for Use in Diagnostic Procedures. Calibration plasma for the assay of Protein C, Protein S, Antithrombin, Fibrinogen, Factor VIII:C, Prothrombin, Factors VII+X, Factors V, VII, IX, X, XI, XII, Plasminogen, alpha2-Antiplasmin and vWF:Ag. The exact concentration and the acceptance ranges for each factor are indicated on the flyer provided with each kit. May also be used as negative control for Lupus Anticoagulant.