The Key Comparisons Working Group of the CCAUV supports the CC within the objective to establish and maintain a global compatibility in the measurements in the field of acoustics, ultrasound and vibration. It takes special responsibility for a consistent implementation of the requirements of the CIPM MRA in terms of comparisons between NMIs and DIs within the scope of the MRA. Within this objective, its tasks are to: identify the need and feasibility of CCAUV key comparisons (KCs) and supplementary comparisons (SCs); review and approve technical protocols for all comparisons that are intended to be used for the subsequent support of CMC claims, i.e. CIPM KCs, RMO KCs and SCs; give advice on the analysis of KCs, calculation of KCRVs and linking procedures; review and comment Draft B reports prior to their submission to the CCAUV for approval; contribute to the SPWG on matters of key comparisons; give advice in case of disagreement during a comparison.

Chairperson:

• Dr Gustavo Ripper  (INMETRO)

Secretary:

• Dr Gianna Panfilo  (BIPM)

Members:

• CEM (Centro Español de Metrología)
• CENAM (Centro Nacional de Metrología)
• DFM (Danish Fundamental Metrology Ltd)
• GUM (Central Office of Measures)
• INMETRO (Instituto Nacional de Metrologia, Qualidade e Tecnologia)
• LNE (Laboratoire National de Métrologie et d'Essais)
• NIM (National Institute of Metrology)
• NMIJ/AIST (National Metrology Institute of Japan, AIST)
• NPL (National Physical Laboratory)
• PTB (Physikalisch-Technische Bundesanstalt)

• Dr Gustavo Ripper (INMETRO); Chairman


• Ms Claire Bartoli (LNE)
• Dr Thomas Bruns (PTB)
• Dr Danuta Dobrowolska (GUM)
• Dr Peter Harris (NPL)
• Dr Ryuzo Horiuchi (NMIJ/AIST)
• Dr Maria Nieves Medina (CEM)
• Dr Lars Nielsen (DFM)
• Dr Akihiro Ota (NMIJ/AIST)
• Dr Andrés Pérez Matzumoto (CENAM)
• Dr Qiao Sun (NIM)