[The control survey of Japanese Association of Medical Technologists (JAMT) and its possibility of the standardization for the survey].

External quality control survey of JAMT (Japanese Association of Medical Technologists) carries out 9 sections of clinical chemistry, hematology, bacteriology, serology, cytology, urology, physiology-pathology, blood transfusion and genetics. In two sections of biochemistry and urology, the control survey sample have been certified which was target value and allowance limits of error by the reference method. These standardized items are utilized in order to know the degree of the accuracy of the participation laboratories. We carried out the investigation for putting the focus at 2 sections of biochemistry and serology in order to execute the standardization of the external quality control. The multiple laboratories were carried out certified using both of common pooled serum and the reference serum for a proficiency test. On the standardization items, the result showed that the external quality survey assessment was possible by the accuracy. On items of biochemistry and serology test, there have compatibility which the results of same control survey of other group. It judged possible the standardization of the external quality control assessment by the integration of the research method.