CCU

Committee members

Consultative Committee for Units (CCU)

President

Prof. J. Ullrich

CIPM Member

Executive Secretary

Dr M. Stock

BIPM

ALL MEMBERS

List of meetings

Meetings and related documents

Upcoming Meeting

26th meeting of the CCU
  • From 09 to 11
  • April
  • 2024

Past Meeting

CCU-WG-S
  • From 20 to 21
  • September
  • 2023

Past Meeting

CCU-TG-ADQSIB-FG-CNQ
  • 11
  • September
  • 2023

Past Meeting

CCU-WG-CMT
  • 16 May,
  • 22 June
  • 2023

Past Meeting

CCU/CCQM Workshop on “The metrology of quantities which can be counted"
  • From 28 to 30
  • March
  • 2023
All meetings

Working Groups

CCU-TG-ADQSIB

CCU Task Group on angle and dimensionless quantities in the SI Brochure

CCU-TG-ADQSIB-FG-CNQ

CCU Task Group on Angles and Dimensionless Quantities in the SI Brochure Focus Group on Counting and Number Quantities

CCU-WG-CMT

CCU Working Group on Core Metrological Terms

CCU-WG-CMT-FG

CCU Working Group on Core Metrological Terms Focus Group

CCU-WG-S

CCU Working Group on Strategy

CCU Workshop - TITLE

Workshop

CCU workshop new version

Publications

Publications

Meeting reports

[CCU] 25th meeting (2021)

[CCU] 24th meeting (2019)

[CCU] 23rd meeting (2017)

[CCU] 22nd meeting (2016)

All publications

ccu-mission

Mission

The CCU was set up in 1964, to replace the "Commission for the System of Units", set up by the CIPM in 1954.

Present activities concern matters related to the development of the International System of Units (SI), preparation of successive editions of the SI brochure, and advice to the CIPM on matters concerning units of measurement.

Nested Applications

News

The BIPM announces the death of Prof. Christian Bordé

It is with great sadness that we report the news that Prof Christian Bordé died on 30 August 2023.

The BIPM welcomes Ibrahim Ahmed, the first JCRB Executive Secretary from AFRIMETS

The position represents one of the mechanisms through which the BIPM has been providing support to Member States for over two decades.

New digital references available for all CMCs

A step towards the establishment of machine-readable links to the KCDB.

NCSL International signs the Joint Statement of Intent on the digital transformation in the international scientific and quality infrastructure

NCSL International signed the Joint Statement of Intent in March 2023.

CIE signs the Joint Statement of Intent "On the digital transformation in the international scientific and quality infrastructure"

The International Commission on Illumination (CIE) signed the Joint Statement on 19 August 2022. 

Asset Publisher

Reports and announcements

Report of Session II of the 112th meeting of the CIPM (2023)

BIPM webinar on Digital References for Metrology

BIPM Workshop on Quantum Technologies

BIPM Annual Review 2022/2023

Decisions of the CIPM (June 2023 - Session II)

Decisions of the CIPM (March 2023 - Session I)

Report of the 111th meeting of the CIPM (2022)

A further short history of the SI prefixes

Resolutions adopted at the 27th meeting of the CGPM

CC survey on the digital transformation

A digital framework for realising the SI - a proposal for the metre

Decisions of the CIPM (June 2022)

BIPM Annual Review 2021/2022

Report of the 110th meeting of the CIPM (2021)

Draft Resolutions - 27th CGPM meeting (2022)

BIPM Strategic Plan 2022

Report of Session II of the 110th meeting of the CIPM (2021)

Report of the 25th meeting of the CCU (2021)

Report of Session I of the 110th meeting of the CIPM (2021)

BIPM Annual Review 2020/2021

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