Strengthen instruments, management standards of measurement is the basis for measuring the quality assurance. First, instruments, standards of measurement should be strictly carried out according to the requirements of the quality manual verification, calibration, in order to ensure that the equipment, strict standards of measurement within the validity period of normal operation and accuracy. Secondly, some not commonly used instrument during the regular verification to ensure that the performance in the use of good, to run properly. Strictly eliminate the use of measuring instruments over the test cycle and instruments. Moreover, standards of measurement and calibration should be given guns to select the required inspection departments, such as the national metrology institutes, industry center metering station, provincial metrology departments according to their grade level accuracy.
In addition, to effectively prepare standards of measurement instruments and maintenance, which is to ensure the verification Ding made a very important quality. Standards of measurement instruments and maintenance work should be conducted regularly, according to a program file maintenance procedures and standards of measurement instrument to remove dust, rust and other maintenance work. Good maintenance work not only to maintain good standards of measurement and the measurement accuracy, but also can prolong its life.
2 quality assurance test and calibration original records, certificates
    Metering is a scientific and rigorous work, the original records from the test, calibration certificate to be issued, each link so careless. Real evidence, intact, accurate and reliable basic requirement is the original record.
       First, the original records should have qualified authenticity, integrity and accuracy.
Authenticity is faithfully reflect the prevailing locally test, calibration original Bom record the actual situation reflects verification, data calibration process, the phenomenon, using measuring instruments, equipment and environmental conditions of the real situation. We are required to maintain the authenticity of the measurement staff must be based on scientific work attitude, seriously treat every - time verification, calibration procedures, and each measurement data, never allow sloppy and fraud phenomenon.