Committee members

Consultative Committee for Mass and Related Quantities (CCM)

President

Ms G. Macdonald

Director General, NRC Metrology

National Research Council of Canada

Canada

Executive Secretary

Dr H. Fang

Bureau international des poids et mesures

France

List of meetings

Meetings and related documents

20th meeting of the CCM and its Working Groups

From 23 to 27
June
2025

Hao Fang
CCM

CCM-WGH

20
September
2024

CCM-WGH

CCM-WGS

03
June
2024

2nd webinar of the CCM

22
May
2024

1st webinar of the CCM

30
April
2024

CCM-WGFT

From 06 to 07
February
2024

CCM-WGFT

CCM-TGPfD-kg

CCM Task Group on the Phases for the Dissemination of the kilogram following redefinition

CCM-WGDV

CCM Working Group on Density and Viscosity

CCM-WGFF

CCM Working Group on Fluid Flow

CCM-WGFT

CCM Working Group on Force and Torque

CCM-WGG

CCM Working Group on Gravimetry

CCM-WGH

CCM Working Group on Hardness

CCM-WGM

CCM Working Group on Mass

CCM-WGPV

CCM Working Group on Pressure and Vacuum

CCM-WGS

CCM Working Group on Strategy and MRA coordination

Publications

Meeting reports

[CCM] 19th meeting (2023)

[CCM] 18th meeting (2021)

Guidance documents on the CIPM MRA

[CCM] CCM Guidelines for Submission and Review of CMCs

[CCM] M - Classification of services in Mass and related quantities

CCM-mission

Mission

The CCM was set up in 1980.

Present activities concern matters related to the realization and dissemination of the mass unit following the 2018 redefinition of the kilogram in terms of the Planck constant, establishment of international equivalence between national laboratories for mass and a number of related quantities (density, pressure, force, fluid flow, viscosity, hardness, gravitational acceleration) and advice to the CIPM on these matters.