1. The company's highest measurement standards and measuring instruments;
2. For trade settlement, safety and security, health care and environmental monitoring, and included in the scope of mandatory verification of measuring instruments;
3. Production process and quality inspection of key parameters with the measuring instruments;
4. In and out of the plant material accounting with measuring instruments;
5. Precision testing of high accuracy or frequent use of the measurement instruments. p>
4. In and out of the plant material accounting with measuring instruments;
5. Precision testing of high accuracy or frequent use and poor reliability of measuring instruments.
(B) the scope of Class B measuring instruments:
1. safety, health care and environmental monitoring, but is not included in the mandatory verification of the scope of measuring instruments;
2. production process is not a key parameter of the measuring instruments;
3. product quality of the general parameters of the detection of measuring instruments;
4. Second, three energy measurement with measuring instruments;
5. Internal material management with measuring instruments.
(C) the scope of the C class measuring instruments:
1. Low-value consumable, non-compulsory verification of measuring instruments;
2. The company's living area of the internal energy distribution of measuring instruments, auxiliary production measuring instruments;
3. In the process of using the measurement of data in the measurement of imprecise requirements of the measuring instruments;
4. The national metrological administrative department State metrological administrative departments to allow a one-time verification of measuring instruments.