The main basis for verification is the "National Measurement and Certification Regulations" (JJG), which is the measurement of equipment must comply with the statutory technical documents. Which, usually on the measurement of testing equipment, measurement characteristics, test items, test conditions, test methods and test results, etc. to make provisions. Determination of the main basis for the "National Measurement Certification Regulations" (JJG), which is the measurement of equipment certification must comply with the statutory technical documents.
Measurement verification equipment Percentage meter checker
Definitions and concepts:
1, measurement
Measurement (metrology) refers to the technical and legal means to ensure that the value of the measurement of the accuracy of the constant, the unit of measurement of unity. Measurement includes length, heat, mechanics, electromagnetism, radio, time and frequency, ionizing radiation, optics, acoustics and chemistry and other specialties.
Checker
2, validation
Checking and confirming whether the measuring instrument meets the legal requirements of the procedure. Validation (validation) is a way to transfer the value of the lake source. Validation model mainly refers to the "Chinese people's *** and the State according to the management of measuring instruments catalog" in the mandatory verification of measuring instruments. Inspection based on the measurement of the verification procedures to give measuring instruments qualified or not, and provide a certificate of verification or notification of the results of the verification.