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Calibration is the metrological test with which calibratable measuring instruments are checked, calibrated and certified. During calibration, the metrological properties of the measuring instrument to be calibrated are compared with reference or measurement standards of the Physikalisch-Technische Bundesanstalt

(PTB). In addition to the Physikalisch-Technische Bundesanstalt, only verification offices and approved testing laboratories may perform verification. The latter two institutions are subject to the sovereignty of the Länder and are supervised by the Verification Supervisory Authority.

Differentiation of measurement precision

Differentiation of measurement precision

Calibration is regulated in the German Calibration Act (EichG) - Gesetz über das Mess- und Eichwesen. This stipulates that calibration and its control may only be carried out by the Physikalisch-Technische Bundesanstalt and the responsible calibration authorities. The calibration itself is legally binding depending on the area of application, for example for measuring instruments that are used for business purposes. Calibration is carried out at certain intervals to determine whether the measuring instrument meets its metrological characteristics and whether the measurement deviations comply with the permissible deviations of the calibration regulations. If the metrological requirements are met, this is documented with a calibration certificate.

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Englisch: calibration
Updated at: 26.11.2010
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