– the intergovernmental organization through which Member States act together
     on matters related to measurement science and measurement standards.
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CCM Working Group on Hardness (CCM-WGH)

Terms of reference

    To advise the CCM on matters relating to hardness;

    To improve harmonization of primary standards by developing new primary definitions and/or organizing pilot studies;

    To organize and conduct key and supplementary comparisons for supporting the CIPM MRA;

    To review the results of completed key and supplementary comparisons and plan and support new comparisons;

    To facilitate the submission and review of CMCs by establishing technical review criteria and service categories and providing guidance on and coordinating the review process;

    To support activities of RMOs;

    To produce working documents for the evaluation of uncertainty;

    To maintain good links and interface with the hardness community (IMEKO TC5 - Hardness Measurement;

    To provide formal liaison among organizations involved in the standardization (ISO TC164/SC 3 - Mechanical testing of metals / Hardness testing, ASTM-International Committee E28.06 - Mechanical Testing / Indentation Hardness Testing).

Chairperson:

  • Dr Samuel R. Low  (NIST)

Members:

  • CENAM (Centro Nacional de Metrología)
  • GUM (Central Office of Measures)
  • INMETRO (Instituto Nacional de Metrologia, Qualidade e Tecnologia)
  • INRIM (Istituto Nazionale di Ricerca Metrologica)
  • KEBS (Kenya Bureau of Standards)
  • KRISS (Korea Research Institute of Standards and Science)
  • LNE (Laboratoire National de Métrologie et d'Essais)
  • NIM (National Institute of Metrology)
  • NIMT (National Institute of Metrology (Thailand))
  • NIST (National Institute of Standards and Technology, United States Department of Commerce)
  • NMIJ/AIST (National Metrology Institute of Japan, AIST)
  • NMISA (National Metrology Institute of South Africa)
  • NPL (National Physical Laboratory)
  • PTB (Physikalisch-Technische Bundesanstalt)
  • RISE (RISE Research Institutes of Sweden AB)
  • SMU (Slovak Institute of Metrology/Slovenský Metrologický Ústav)
  • UME (National Metrology Institute of Turkey)
  • VNIIFTRI (All-Russian Scientific Research Institute of Physical Technical Measurements, Rosstandart)
  • VNIIM (D.I. Mendeleyev Institute for Metrology)
  • VSL (VSL B.V.)
  • RMO Technical Committee chairs in the field of Mass and Related Quantities or their representatives

  CCM: Upcoming meetings
16–17 May 2019: 17th meeting of the CCM

CCM summary
General information
Members of the CCM
CCM publications and bibliography
CCM Guidelines on final reports of comparisons
Future revision of the SI
CCM strategy
CCM working groups
Photographs
Key comparisons
Open documents
CCM documents
CCM-WGG documents
CCM-WGH documents
CCM-WGPV documents
Workshop on the mise en pratique (Nov. 2012)