In accordance with the provisions of China's "Measurement Law", ( ) belongs to the scope of mandatory verification.

In accordance with the provisions of China's "Measurement Law", B. Measuring equipment for trade settlement and C. Measuring equipment for safety and health belong to the scope of mandatory verification.

"Chinese People's *** and State Measurement Law" Article IX of the people's governments at or above the county level measurement of the administrative departments of the public standard measuring instruments, departments and enterprises, institutions using the highest standard measuring instruments, and for trade settlement, safety and security, medical and health care, environmental monitoring included in the mandatory verification catalog of measuring instruments, the implementation of mandatory verification. Not in accordance with the provisions of the application for verification or unqualified verification, shall not be used. The implementation of mandatory verification of the work of measuring instruments catalog and management, developed by the State Council.

Mandatory verification of the use of

Mandatory verification of the work of measuring instruments must be included in the mandatory verification of the "catalog" in the work of measuring instruments, and is directly used in trade settlements, safety and security, medical and health care, environmental monitoring of the work of measuring instruments. The so-called "directly for" refers to the face of social services, will give rise to conflicts of interest in those measuring instruments, the value of its acquisition will be directly in the above four aspects of the role.

Reference: