Simplified method for assessing uncertainties in a commercial production environment

With the introduction of Edition 8 of NAMAS document NIS3003 and the inclusion of the principles outlined in the ISO Guide to the Expression of Uncertainty in Measurement the assessment of uncertainties of measurement has become a task more suited to a mathematician rather than the average calibration engineer. In some companies with small calibration departments it might be possible for all of the engineers to be re-educated in assessment of uncertainties, however in larger laboratories it is more usual for various engineers to become specialist in certain aspects of the calibration process. This paper aims to demonstrate a simplified approach to uncertainty assessment which falls broadly within the guidelines set out in both NIS3003 and the ISO Guide