UNCERTAINTY ANALYSIS IN CALIBRATION OF STANDARD VOLUME MEASURES

Standard test measures can be calibrated using the gravimetric or the volumetric methods according to the needed accuracy. In this paper is presented and compared the evaluation of the data and uncertainty of both gravimetric and volumetric method. The model for calculating the measurement uncertainty and the methodology for the evaluation of the uncertainty components are described for both gravimetric and volumetric methods. It is also described the cases where two reference volume measures are used to determine the volume of a single instrument in the volumetric method.