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  FUNDAMENTAL CONSTANTS

Terms of reference

The terms of reference of CCM-WGD are:
    To improve techniques for realizing the SI unit of density;

    To exchange information on the density standard;

    To perform CIPM key comparisons for supporting CMCs on density;

    To coordinate RMO key and supplementary comparisons for accelerating the CIPM MRA in the field of density;

    To provide guidance to accept CMCs on density;

    To coordinate activities for density measurements at NMIs; and

    To assess needs and seeds on metrology for density.
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