For many operations the quality of the calibration needs to be known and is quantified by an uncertainty estimate for the calibration. This is so important for the scientific community and manufacturing operations that it has been proposed that an evaluation of the measurement uncertainty was added as part of the calibration process.
Part of calibration is to zero the measuring device, the process of establishing that the zero point of the device corresponds to zero on the relevant scale.
Calibration is the process of verification that a means of measuring accuracy in accordance with the design. Calibration is done with the usual standard of a connected to the national and international standards and reference materials tersertifikasi.
Quality management system requires an effective system of measures, including the calibration formal, documented, and periodic, for all measurements. ISO 9000 and ISO 17025 requires an effective system calibration.