LINKING CIPM AND RMO COMPARISONS

We introduce an overview of three methods used to link a key comparison organized by a Regional Metrology Organization (RMO) and a key comparison organized by a Consultative Committee of the International Committee for Weights and Measures (CIPM): (i) a heuristic (or naive) approach; (ii) weighted least squares (a simplified version of Sutton, 2004); and (iii) a Bayesian common laboratory effects model (Bodnar & Elster, 2018).