The first test: a test of the new measuring instruments have not been tested.
Follow-up test: any kind of test after the first test of measuring instruments.
Inspection:
1) mandatory periodic inspection;
2) repair inspection;
3) periodic inspection within the validity period of the inspection, whether requested by the user, or for some reason, in the validity of the seal is not in effect.
Periodic calibration: according to the time interval and the prescribed procedures for measuring instruments on a regular basis for a follow-up inspection.
Accreditation certificate: proof that the measuring instruments have been tested by the satisfactory results of the document.
Notice of failure (test results notice): the statement that the measuring instruments do not meet the statutory requirements of the document.
Calibration: in the prescribed conditions, in order to determine the measuring instrument or measurement system indicated by the value, or physical gage or reference material represents the value of the quantities, and the corresponding by the standard reproduced by the relationship between the values of a group of operations.
Note:
1, the calibration results can give both the measured value, but also to determine the value of the demonstration value correction.
2, calibration can also determine other metrological characteristics, such as the role of the amount of influence.
3, calibration results can be recorded in the calibration certificate or calibration report.
The difference between calibration and verification:
1, calibration is not legal, is the voluntary traceability of the enterprise behavior; verification is legal, is the measurement of the scope of law enforcement behavior.
2, calibration is mainly to determine the measuring instrument value error, verification is a comprehensive assessment of its measurement characteristics and technical requirements.
3, calibration is based on calibration specifications, calibration methods, usually should be unified provisions, and sometimes can also be developed on their own; verification is based on verification procedures.
4, calibration usually do not judge the measuring instrument qualified or not, if necessary, can also determine whether its performance meets the expected requirements; verification is required to make qualified or not the conclusion.
5, calibration results are usually issued calibration certificates or calibration reports; calibration results are qualified to issue calibration certificates, unqualified issued by the notice of qualification.