Article 9 of the Metrology Law of People's Republic of China (PRC) * * * The metrological administrative department of the people's government at or above the county level shall carry out compulsory verification of the public standard instruments of measurement, the highest standard instruments of measurement used by departments, enterprises and institutions, and the working measuring instruments listed in the compulsory verification catalogue of trade settlement, safety protection, medical and health care and environmental monitoring. Those who fail to apply for verification according to regulations or fail to pass the verification shall not be used. The catalogue and management measures of working measuring instruments subject to compulsory verification shall be formulated by the State Council.
Expand the use of data mandatory verification
Working measuring instruments subject to compulsory verification must be listed in the catalogue of compulsory verification and directly used for trade settlement, safety protection, medical and health care and environmental monitoring. The so-called "direct use" refers to those measuring instruments that will cause conflicts of interest in the face of social services, and the value obtained will directly play a role in the above four aspects.
References:
China People's Congress Network-"People's Republic of China (PRC) Metrology Law"