Specific can be divided into the following categories:
The first category: that is, the national mandatory calibration of measuring instruments, it is also the highest standard of measuring instruments and international trade settlements, related to the people's lives in the use of medical and health care, related to personal safety and security protection, as well as some of the environmental monitoring and other national laws and regulations of the measuring instruments.
The second category: that is, enterprises in the production of products used to monitor product quality, testing product quality. Internal production data, business management and other measuring instruments, such instruments can be based on the use of the enterprise, the use of environmental conditions to determine the calibration cycle and confirm its calibration and accuracy.
The third category (customarily referred to as Category C): installed in the enterprise equipment is not easy to dismantle the monitoring instruments (such as oil pressure gauge, pressure gauge, etc.), only play a role in the indication without participating in the measurement of the instrument (such as the switchboard meter) or does not have a measurement of characteristics of the test equipment (such as platforms, leveling instruments). This type of measuring equipment can be verified once by the company without subsequent verification and calibration.
Type 4: Some of the equipment can be calibrated by its own company or can be self-calibrated using industry standards. This kind of measuring equipment should be industry-specific equipment or experimental/testing and measuring equipment for which there are no domestic verification regulations or calibration specifications.
The above is about "which industries need to do instrument calibration?" The related article, I hope to bring you help, more about the instrument measurement and calibration knowledge can be concerned about Huazhonghang.