New Guide from METTLER TOLEDO: Calibration of Weighing Instruments

Metrological accuracy is critical to quality. Effective calibration of weighing instruments is the prerequisite for traceable and accurate weighing. To achieve this accuracy, however, an organization must have a thorough understanding of current metrological science—and this includes a thorough understanding of calibration.

Calibration establishes a relation between quantity values provided by measurement standards and corresponding indications, which is only complete if contributing measurement uncertainties, are taken into account. For non-automatic weighing instruments, the only global definition of calibration is EURAMET calibration guideline cg-18, "Calibration of non-automatic weighing instruments.”

The white paper ‘Measurement Uncertainty: Expert Know-how’ details the test procedures and measurement uncertainty estimation procedures laid out by EURAMET, highlighting laboratory and production applications. Minimum weight, which defines the lower boundary of the safe weighing range by scientifically defining the smallest sample quantity able to produce specified relative accuracy, is also addressed.

To learn more about how a thorough understanding of calibration and minimum weight can help ensure weighing tolerances are met in your lab, download the free whitepaper “Measurement Uncertainty: Expert Know-How” here.