Specification Manufactures: Dade Behring Method: Photometric technology at various wavelengths Assays: Coagulometric, chromogenic and immunochemical assays BCT analyzer perform coagulometric and chromogenic tests such as the routine prothrombin time, partial prothrombin time, heparin, derived fibrinogen and fibrinogen, as well as special tests, single factor determination, antithrombin IIIa, batroxobin, plasminogen, protein C and von Willebrand factor. Return Policy Items are sold as-is with no returns or refunds available unless explicitly stated.