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