(a)Identification. A hemoglobin A2assay is a device used to determine the hemoglobin A2content of human blood. The measurement of hemoglobin A2is used in the diagnosis of the thalassemias (hereditary hemolytic anemias characterized by decreased synthesis of one or more types of hemoglobin polypeptide chains).
(b)Classification. Class II (performance standards).
[45 FR 60617, Sept. 12, 1980]