Under normal circumstances, the instrument calibration should meet the following basic requirements:
1) Environmental conditions: If the calibration is performed in the verification (calibration) room, the environmental conditions shall meet the requirements of laboratory requirements such as temperature and humidity. If the calibration is carried out on site, the environmental conditions are based on the conditions that can be met at the instrument site.
2) Instrument: As the standard instrument for calibration, the error limit should be 1/3 to 1/10 of the error limit of the calibration.
3) Personnel: Although the calibration is different from the verification, the personnel performing the calibration should also be subject to an effective assessment and obtain a corresponding certificate of compliance. Only certificate holders are required to issue calibration certificates and calibration reports, only such certificates and reports. Think it is effective.
The calibration and verification of the instrument are the same:
Calibration and verification are two different concepts, but there is a close relationship between the two. Calibration is generally performed by comparing a measurement instrument (called a standard instrument) with a higher accuracy than the one being calibrated to a calibrated measurement instrument to determine the indication error of the instrument being calibrated, sometimes including part of the measurement performance, but often The calibration measuring instrument only needs to determine the indication error. If the calibration is the verification content of the indication error in the verification work, it can be said to be part of the verification work, but the calibration cannot be regarded as verification, and the calibration also has less requirements on the conditions. The verification is so strict that the calibration work can be carried out at the production site and the verification must be carried out in the verification room.
Some people understand calibration as the process of adjusting a measuring instrument to a specified error range, which is not enough. Although adjustments can be made during calibration, adjustments do not equal calibration.
1) Environmental conditions: If the calibration is performed in the verification (calibration) room, the environmental conditions shall meet the requirements of laboratory requirements such as temperature and humidity. If the calibration is carried out on site, the environmental conditions are based on the conditions that can be met at the instrument site.
2) Instrument: As the standard instrument for calibration, the error limit should be 1/3 to 1/10 of the error limit of the calibration.
3) Personnel: Although the calibration is different from the verification, the personnel performing the calibration should also be subject to an effective assessment and obtain a corresponding certificate of compliance. Only certificate holders are required to issue calibration certificates and calibration reports, only such certificates and reports. Think it is effective.
The calibration and verification of the instrument are the same:
Calibration and verification are two different concepts, but there is a close relationship between the two. Calibration is generally performed by comparing a measurement instrument (called a standard instrument) with a higher accuracy than the one being calibrated to a calibrated measurement instrument to determine the indication error of the instrument being calibrated, sometimes including part of the measurement performance, but often The calibration measuring instrument only needs to determine the indication error. If the calibration is the verification content of the indication error in the verification work, it can be said to be part of the verification work, but the calibration cannot be regarded as verification, and the calibration also has less requirements on the conditions. The verification is so strict that the calibration work can be carried out at the production site and the verification must be carried out in the verification room.
Some people understand calibration as the process of adjusting a measuring instrument to a specified error range, which is not enough. Although adjustments can be made during calibration, adjustments do not equal calibration.
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