* The intended use for the HBcAb elisa test is for clinical lab diagnosis and handling of hepatitis B-infected patients. The HBcAb ELISA is an enzyme-linked immunosorbent assay for the qualitative identification of antibodies to hepatitis B antigen (HBcAg) in human serum/plasma. * Compatible with all common ELISA reader * Specimen : Serum or plasma * Sensitivity :99.5% * Specificity : 99.5% * 12 months at 2-8℃