How to set the calibration cycle of the equipment

Testing instruments and equipment is divided into calibration and calibration (calibration is divided into self-calibration and external school), all belong to the mandatory inspection of the catalog of instruments and equipment are to be tested, the calibration cycle has the relevant standards, in addition to the mandatory inspection of the catalog of instruments and equipment are calibrated, the test testing organizations according to the actual situation and their own conditions to determine their own self-calibration or external school, but also to set their own calibration cycle (regular, irregular or), as for the calibration cycle can be set according to the frequency of use of instruments and equipment to ensure the accuracy of the value of the instrument can be. Before use), as for the calibration cycle can be set according to the frequency of use of instruments and equipment, the actual situation and their own conditions to ensure that the instrumentation is accurate that can be. For example: glass cylinder measuring cups generally calibrated once that is no longer required to calibrate, and like the test mold because the frequency of use is particularly high and the laboratory can be self-calibrated, set the calibration once a month is not too much. Pure hand-typed, if satisfied, please praise ~!