What does mandatory inspection refer to?

Mandatory inspection: for certain tables, **there are requirements for mandatory time verification to ensure proper functionality.

Items that require regular inspection and testing must be inspected and tested at the appropriate times; this is what is referred to as mandatory inspection.

Measurement terms; instruments and items for which mandatory inspection is required by measurement regulations

**Measurement equipment that is required to undergo mandatory calibration. **There are four categories specified: those used for trade settlement, safety protection, medical and health care, and environmental monitoring are all subject to mandatory inspection. You can search for the specific catalog of instruments subject to mandatory inspection.

**A testing requirement for measuring instruments used in important locations, to ensure that such instruments give accurate readings and are sensitive and reliable. In chemical plants, weighing equipment used for incoming and outgoing goods, measuring instruments on boilers, as well as standard measuring instruments are all required to undergo mandatory inspections.

Article 9 of the Metrology Law of the People’s Republic of China: The metrology administrative departments of people’s governments at or above the county level shall enforce mandatory inspection on social public metrological standard instruments, the highest-level metrological standard instruments used by departments, enterprises, and institutions, as well as working metrological instruments that are included in the list for mandatory inspection and are used in areas such as trade settlement, safety protection, medical and health care, and environmental monitoring. It shall not be used if it has not been submitted for inspection as required or has failed the inspection. The catalog and management regulations for work measuring instruments subject to mandatory verification shall be formulated by ***. 　　For other measuring standards and working measuring instruments that are not covered by the provisions of the preceding paragraph, the using units shall conduct regular inspections on them themselves or send them to other metrological inspection institutions for inspection, while the metrological administrative departments at the county level and above shall carry out supervision and inspection. \"List of Working Measuring Instruments Subject to Compulsory Verification in the People’s Republic of China\" Forum address: http://bbs.hcbbs.com/thread-97772-1-1.html