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in support to the Mutual Recognition Arrangement of the CIPM (CIPM MRA) of national measurement standards and of calibration and measurement certificates issued by national metrology institutes
  Participants in the CIPM MRA (Appendix A)
List of national metrology institutes and designated insitutes that are participant in the Arrangement.
  Key and supplementary comparisons (Appendix B)
Information on CIPM (Comité International des Poids et Mesures) and RMO (Regional Metrology Organization) key and supplementary comparisons, together with results interpreted in terms of equivalence.
Search comparisons :
  Calibration and Measurement Capabilities – CMCs (Appendix C)
Quantities for which calibration and measurements certificates are recognized by institutes participating in the Arrangement.
       Search CMCs :
  List of key comparisons (Appendix D)
List together with a short description of the key comparisons recorded.