The realization of the internationally adopted "Josephson volt" in Canada

The internationally accepted Josephson volt, which corresponds to 2e/h = 483 594.0 GHz/VBIPM-69, was adopted 1 July 1978 as the primary reference for the Canadian volt (VNRC). Emphasis is given to a description of the experimental apparatus and techniques used to realize the Josephson volt at the National Research Council to an estimated overall uncertainty of ± 0.12 ppm (1σ).