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

CCM-WGH

19
September
2025

CCM-WGH

20th meeting of the CCM

From 26 to 27
June
2025

Hao Fang
CCM

CCM Workshop, Session I: Pressure and Vacuum; Session II: Key comparisons and Digitalization

From 26 to 27
June
2025

CCM-WGS

25
June
2025

CCM-WGFF

24
June
2025

CCM-WGFF

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)

Newsletters

[CCM] CCM-eNews January 2021

Guidance documents on the CIPM MRA

[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.