Instrument calibration is a legal, technical, instrumental measurement tools for social services. Measuring instruments in the manufacturing and maintenance process, the need for "verification, calibration, calibration or calibration" of the operational management.
1. Accreditation, calibration, verification and calibration of the applicable principles
(1) calibration
No need for JJG or JJF requirements of the relevant documents, the enterprise can calibrate their own measuring instruments.
(2) calibration
Calibration is the use of standard measuring instruments, the accuracy of the measuring instruments used to test whether the standard.
(3) calibration
Measuring instruments belonging to the national mandatory calibration catalog, should be sent for inspection and calibration. General to determine whether the measuring instruments should be checked, need to meet the following two conditions:
(a) included in the Chinese people*** and the State mandatory testing work measuring instruments detailed catalog of instruments and equipment;
(b) the use of measuring instruments are: trade calculations, security protection, health care and environmental monitoring.
(4) calibration
National mandatory calibration catalog outside the work of measuring instruments, but in line with the requirements of the JJG or JJF need to be sent for calibration. Enterprises that have measurement standard instruments and instrument calibration methods, can be self-calibrated.
2. Accreditation, calibration, verification and calibration of the basic meaning
(1) calibration
Calibration, is in the absence of verification or calibration procedures, by the enterprise to prepare their own self-calibration procedures or instructions for testing and calibration of the equipment being measured.
Calibration is mainly used for specialized measuring instruments, or relatively low precision measuring instruments, and test hardware or software.
(2) calibration
Calibration is the use of standard measuring instruments, test the accuracy of the instruments used to meet the standard.
(3) calibration
The calibration is a statutory measurement department or legally authorized organization, according to the provisions of the calibration regulations, through experiments and provide proof, to determine the error in the value of the measuring instruments in line with the specified requirements of the activities. Exceed the "verification regulations" specified value of the error range is unqualified, in the specified value of the error range is qualified.
(4) calibration
Instrument calibration refers to the prescribed conditions, to determine the indication value of the measuring instrument or measurement system, or physical gage, the indication value of the reference material, respectively, with a higher precision standard equipment and the measured equipment, the same measured object for inspection. In order to obtain the measured equipment relative to the standard equipment error, so as to obtain the calibration value of the measured equipment indication data.
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