Why enzyme labeling instrument also belongs to the national mandatory calibration of equipment and instruments?

It is necessary for you to popularize the concept of mandatory calibration. According to the "Chinese people's *** and the State Measurement Law" Article 9 of the provisions of the people's government at or above the county level measurement of the administrative departments of the social public measurement of standard instruments, departments and enterprises, institutions using the highest measurement of the standard instruments, and for trade settlement, safety and security, medical and health care, environmental testing included in the mandatory inspection catalog of the work of the measuring instruments for mandatory inspection. First of all, the enzyme marker is used in medical and health care, and secondly, the enzyme marker is actually a disguised special photoelectric colorimeter or spectrophotometer, its basic working principle and main structure and photoelectric colorimeter is basically the same. The colorimeter is included in the mandatory calibration catalog, and therefore requires mandatory calibration.