Digital Representation of Measurement Uncertainty: A Case Study Linking an RMO Key Comparison with a CIPM Key Comparison

This paper considers a future scenario in which digital reporting of measurement results is ubiquitous and calibration certificates (DCCs) contain information about the components uncertainty result. The task linking international comparisons used as case study to look at benefits digitalization. Comparison provides context correlations are important, so benefit passing record contributions along traceability chain can be examined. International Committee for Weights Measures (CIPM) uses program “key comparisons” establish extent measurements particular quantity may considered equivalent when made different economies. To obtain good coverage, linked together: number regional metrology organization (RMO) key back an initial CIPM comparison. Specific systematic effects participants’ must available during allow correct treatment correlations. However, conventional certificate formats today do not provide this: participants submit additional data, report comparison anticipate requirements linking. Special handling data laborious prone error. An uncertain-number format was this study, caters all required would simplify analysis, reporting, linking; also enable more informative presentation results. useful generally, scenarios where arise, its incorporation into DCCs should considered. A full dataset supported by open-source software available.