Measuring instruments refer to devices, instruments, measuring tools and reference materials that can directly or indirectly measure the numerical value of the measured object. According to the grade, it can be divided into Class A measuring instruments, Class B measuring instruments and Class C measuring instruments.
Extended data
Scope of measuring instruments:
1 and the range of Class A measuring instruments:
(1) The company's highest standards of measurement and standard instruments of measurement;
(2) Measuring instruments used for trade settlement, safety protection, medical care, environmental monitoring, etc., and included in the scope of compulsory verification of measuring instruments;
(3) Measuring instruments for key parameters in production process and quality inspection;
(4) Measuring instruments for accounting incoming and outgoing materials;
(5) Measuring instruments with high accuracy or frequent use and poor reliability in precision testing.
2. Scope of Class B measuring instruments:
(1) measuring instruments for safety protection, medical care and environmental monitoring, but not included in the scope of compulsory verification;
(2) Measuring instruments for non-critical parameters in the production process;
(3) Measuring instruments for testing general parameters of product quality;
(four) measuring instruments for secondary and tertiary energy metering;
(5) Measuring instruments for internal material management.
3. Scope of Class C measuring instruments:
(1) measuring instruments for low-value consumables that are not subject to compulsory verification;
(2) Energy distribution measuring instruments and auxiliary production measuring instruments in the company's living quarters;
(3) Measuring instruments that have no precise requirements for measurement data in use;
(4) The national metrological administrative department explicitly allows one-time verification of measuring instruments.
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