CIPM MRA participants
The CIPM MRA is open to the NMIs of Member States, to the NMIs of Associate States and Economies, and to certain international organizations invited by the CIPM.
There are 259 institutes participating in the CIPM MRA, comprising 98 NMIs, 4 international organizations and 157 designated institutes.
Albania
Signatory/NMI
General Directorate of Metrology and Calibration
* now DPM
Argentina
Australia
Signatory/NMI
National Measurement Institute, Australia
* now the NMIA
Designated institute(s)
Australian Nuclear Science &Technology Organisation
Australian Radiation Protection and Nuclear Safety Agency
For ionizing radiation: exposure to ionizing radiation, absorbed dose of ionizing radiation
Yallambie
Climate and Atmospheric Science
Austria
Signatory/NMI
Bundesamt für Eich- und Vermessungswesen
Designated institute(s)
Azerbaijan
Signatory/NMI
Azerbaijan Institute of Metrology
Bangladesh
Signatory/NMI
Bangladesh Standards and Testing Institution
Designated institute(s)
Bangladesh Reference lnstitute for Chemical Measurements
Belarus
Signatory/NMI
State Committee for Standardization of the Republic of Belarus
Designated institute(s)
Belarussian State Institute for Metrology
Belgium
Signatory/NMI
SPF Economie, DG Qualité et Sécurité
Designated institute(s)
Nuclear Calibration Laboratory, Belgian Nuclear Research Centre
Bolivia
Signatory/NMI
Instituto Boliviano de Metrologia
Bosnia and Herzegovina
Signatory/NMI
Institute of Metrology of Bosnia and Herzegovina
Designated institute(s)
Botswana
Signatory/NMI
Botswana Bureau of Standards
Brazil
Signatory/NMI
Instituto Nacional de Metrologia, Qualidade e Tecnologia
Designated institute(s)
Bulgaria
Signatory/NMI
Bulgarian Institute of Metrology
* now the BIM
Cambodia
Signatory/NMI
National Metrology Centre under the Ministry of Industry, Science, Technology & Innovation
Canada
CARICOM
Signatory/NMI
Caribbean Community
* for CARICOM
Designated institute(s)
Antigua and Barbuda Bureau of Standards
The Belize Bureau of Standards
Barbados National Standards Institution
Dominica Bureau of Standards
Grenada Bureau of Standards
The Guyana National Bureau of Standards
Saint Kitts and Nevis Bureau of Standards
Saint Lucia Bureau of Standards
Surinamese Standards Bureau
Saint Vincent and the Grenadines Bureau of Standards
Trinidad and Tobago Bureau of Standards
Chile
Signatory/NMI
Instituto Nacional de Normalización
Designated institute(s)
Comision Chilena de Energia Nuclear
Centro de Estudios, Medición y Certificación de Calidad
Calibraciones Industriales S.A
Chemical Laboratory of Codelco Norte Division
Laboratorio Custodio de Patrones Nacionales de Longitud, Pontificia Universidad Católica de Chile
Empresa Nacional de Aeronáutica
Instituto de Investigaciones y Control
Instituto de Salud Pública de Chile
For amount of substance: fresh water (5.1); food contaminants (11.2) and other food-related measurements (11.4) (from 01 April 2013)
Santiago
Universidad de Concepción
China
Chinese Taipei
Signatory/NMI
Bureau of Standards, Metrology & Inspection
Designated institute(s)
Industrial Technology Research Institute/Center for Measurement Standards
For acoustics, ultrasound and vibration; electricity and magnetism; length; mass and related quantities; photometry and radiometry; chemistry; thermometry
Hsinchu
National Radiation Standard Laboratory of the Institute of Nuclear Energy Research
Telecommunication Laboratories, ChungHwa Telecom Co. Ltd
Colombia
Signatory/NMI
Instituto Nacional de Metrología de Colombia
Designated institute(s)
Universidad Nacional de Colombia – Laboratorio de Calidad del Aire - CALAIRE
Costa Rica
Signatory/NMI
Laboratorio Costarricense de Metrología
Designated institute(s)
Centro de Investigación en Ciencias Atómicas, Nucleares y Moleculares
Instituto Costarricense de Electricidad (ICE), Laboratorio Metrológico de Variables Eléctricas
Laboratorio de Metrología, Instituto Costarricense de Electricidad
For photometry and radiometry, fibre optics, wavelength and length (from 4 November 2016), time and frequency (from 29 August 2022)
San José
Laboratorio de Fuerza del Laboratorio Nacional de Materiales y Modelos Estructurales
Laboratorio Nacional de Metrología, Grandes Masas y Volumen
For mass measurements from 50 kg to 1000 kg, and volume measurements from 20 dm3 to 5000 dm3 (from 24 March 2010)
San José
Croatia
Signatory/NMI
State Office for Metrology
Designated institute(s)
Meteorological and Hydrological Service / Calibration Laboratory
FER - Primary Electromagnetic Laboratory
FSB - Laboratory for Testing of Mechanical Properties
FSB - Laboratory for Process Measurements
FSB - Laboratory for precise measurement of length
IRB - Secondary Standard Dosimetry Laboratory of the Ruder Boskovic Institute
Cuba
Signatory/NMI
National Bureau of Standards
* The NMI did not participate in the CIPM MRA from 1 January 2022 to 15 October 2024
Designated institute(s)
Czechia
Signatory/NMI
Czech Metrology Institute
Designated institute(s)
Czech Hydrometeorological Institute
Institute of Photonics and Electronics, Czech Academy of Sciences
Calibration Laboratory - CMI Designated Institute
For radioactivity, activity per volume, single nuclide gas, Rn-222, range from 1E2 Bq/m3 to 1E6 Bq/m3 (from 02 April 2025)
Milín
VF Calibration Laboratory
For Ionizing radiation, Branch: dosimetry, quantity: kerma/rate, range: from 10 Gy/h up to 25 kGy/h (accident range dosimetry) (from 25 March 2024)
Cerna Hora
Research Institute of Geodesy, Topography and Cartography
For length - dimensional metrology: linear dimensions, angle, various dimensional; gravity
Zdiby
Denmark
Signatory/NMI
Danish Fundamental Metrology A/S
Designated institute(s)
Danish Technological Institute
For water flow (volume, mass and energy); dimensional metrology (length measurements); anemometry; temperature measurement by contact
Aarhus C
Technical University of Denmark
FORCE Technology
For humidity; gas flow (volume); flow of liquids other than water; force and pressure; volume and density
Brøndby
Hottinger Brüel & Kjær A/S
Trescal Ltd
Ecuador
Signatory/NMI
Servicio Ecuatoriano de Normalización
Designated institute(s)
Egypt
Signatory/NMI
National Institute of Standards
Estonia
Signatory/NMI
Central Office of Metrology
Designated institute(s)
University of Tartu, Institute of Chemistry
Ethiopia
Signatory/NMI
Ethiopian Metrology Institute
* now EMI(ET)
Finland
Signatory/NMI
VTT Technical Research Centre of Finland Ltd, Centre for Metrology / Mittatekniikan keskus
Designated institute(s)
Finnish Geospatial Research Institute
For mass and related quantities: acceleration of free fall; dimensional metrology: long distance, geodetic baselines, EDM instruments (long distance), surveyor leveling rods, precise leveling systems
Masala
Aalto University School of Electrical Engineering
Finnish Meteorological Institute
Finnish Environment Institute, Laboratories
Radiation and Nuclear Safety Authority
France
Signatory/NMI
Laboratoire National de Métrologie et d'Essais
* now LNE
Designated institute(s)
Autorité de Sureté Nucléaire et de Radioprotection
Centre Technique des Industries Aérauliques et Thermiques
For mass and related quantities: fluid flow: liquid flow-water, flow speed; for thermometry: humidity
Villeurbanne Cedex
École Nationale Supérieure d'Arts et Métiers de Paris
Laboratoire Associé de Débitmétrie Gazeuse
Conservatoire National des Arts et Métiers/Laboratoire Commun de Métrologie
For length: laser radiations; photometry and radiometry: photometry; thermometry: temperature
La Plaine-Saint-Denis
Commissariat à l'Énergie Atomique/Laboratoire National Henri Becquerel
Université de Franche-Comté, Laboratoire Temps-fréquence de Besançon
For electricity and magnetism: phase noise in RF domain; time and frequency: time interval and frequency calibrations
Besançon cedex
Observatoire de Paris/Laboratoire Temps Espace
For realization of the SI units in time and frequency (primary and secondary standards) and gravimetry, and for elaboration and dissemination of time scales
Paris
Société des Transports Pétroliers par Pipeline
Georgia
Signatory/NMI
Georgian National Agency for Standards and Metrology
Germany
Signatory/NMI
Physikalisch-Technische Bundesanstalt
Designated institute(s)
Ghana
Signatory/NMI
Ghana Standards Authority
* now GSA
Greece
Signatory/NMI
Hellenic Institute of Metrology
Designated institute(s)
National Laboratory of Chemical Metrology/General Chemistry State Laboratories - Hellenic Institute of Metrology
Ionizing Radiation Calibration Laboratory/Greek Atomic Energy Commission - Hellenic Institute of Metrology
Hong Kong, China
Hungary
Signatory/NMI
Government Office of the Capital City Budapest
* now BFKH; previously MKEH
India
Signatory/NMI
CSIR National Physical Laboratory of India
Designated institute(s)
Indonesia
Signatory/NMI
Directorate for National Measurement Standards of Mechanics, Radiation, and Biology and Directorate for National
Measurement Standards of Thermoelectric and Chemistry, National Standardization Agency of Indonesia
* now SNSU-BSN
Iran (Islamic Republic of)
Signatory/NMI
Iran National Standards Organization
* now INSO; previously ISIRI
Iraq
Signatory/NMI
Central Organization for Standardization and Quality Control
Ireland
Signatory/NMI
NSAI National Metrology Laboratory
* now the NSAI NML
Israel
Signatory/NMI
National Physical Laboratory of Israel
Italy
Signatory/NMI
National Institute of Metrological Research/Istituto Nazionale di Ricerca Metrologica
* now INRIM
Designated institute(s)
Ente per le Nuove Tecnologie, l'Energia e l'Ambiente -Istituto Nazionale di Metrologia delle Radiazioni Ionizzanti
Jamaica
Signatory/NMI
Bureau of Standards Jamaica
Japan
Signatory/NMI
National Metrology Institute of Japan, AIST
* now NMIJ AIST
Designated institute(s)
Kazakhstan
Signatory/NMI
Republican State Enterprise "Kazakhstan Institute of Standardization and Metrology"
* for KazInMetr, now RSE "KazStandard"
Kenya
Signatory/NMI
Kenya Bureau of Standards
Korea (Republic of)
Signatory/NMI
Korea Research Institute of Standards and Science
Kuwait
Signatory/NMI
Public Authority for Industry
Latvia
Signatory/NMI
LNMC Metrology Bureau
* now LATMB
Lithuania
Signatory/NMI
State Research Institute, Center for Physical Sciences and Technology
* Responsibility for the CIPM MRA has since been transferred to FTMC
On behalf of FTMC the CIPM MRA was resigned on: 17 November 2014
by: Gintaras VALUŠIS (Director, FTMC)
Designated institute(s)
Lithuanian Energy Institute
Luxembourg
Signatory/NMI
Institut Luxembourgeois de la Normalisation, de l'Accréditation, de la Sécurité et qualité des produits et services – Bureau Luxembourgeois de Métrologie
Malaysia
Signatory/NMI
National Metrology Institute of Malaysia
* now NMIM; previously NML-SIRIM
Designated institute(s)
Department of Chemistry Malaysia (DOC)
For amount of substance: high-purity chemicals for organic compounds; food for preservatives and alcoholic beverages (from 26 September 2017)
Petaling Jaya
Malaysian Nuclear Agency
Malta
Signatory/NMI
Malta Competition and Consumer Affairs Authority - Standards and Metrology Institute
* now MCCAA-SMI
Mauritius
Signatory/NMI
Mauritius Standards Bureau
Mexico
Signatory/NMI
Centro Nacional de Metrología
Designated institute(s)
Moldova (Rep. of)
Signatory/NMI
National Metrology Institute of the Republic of Moldova
* now NMI (MD)
Mongolia
Signatory/NMI
Mongolian Agency for Standardization and Metrology
Montenegro
Signatory/NMI
Bureau of Metrology
Morocco
Signatory/NMI
Laboratoire Public d’Essais et d’Études, Laboratoire National de Métrologie
Namibia
Signatory/NMI
Namibian Standards Institution
Netherlands
Signatory/NMI
VSL Dutch Metrology Institute
* now VSL
New Zealand
Signatory/NMI
Measurement Standards Laboratory of New Zealand
North Macedonia
Signatory/NMI
Bureau of Metrology, Ministry of Economy
Norway
Signatory/NMI
Norwegian Metrology Service/Justervesenet
Designated institute(s)
Oman
Signatory/NMI
Directorate General for Specifications and Measurements
Pakistan
Signatory/NMI
National Metrology Institute of Pakistan
* now NMIP
Panama
Signatory/NMI
Centro Nacional de Metrología de Panamá AIP
* now CENAMEP AIP
Paraguay
Signatory/NMI
Instituto Nacional de Tecnología, Normalización y Metrología
Peru
Signatory/NMI
National Institute for Quality/Instituto Nacional de Calidad
* now part of INACAL
Philippines
Signatory/NMI
National Metrology Laboratory of the Philippines
Designated institute(s)
Standards and Testing Division, Industrial Technology Development Institute
Poland
Signatory/NMI
Central Office of Measures
Designated institute(s)
Portugal
Signatory/NMI
Instituto Português da Qualidade
Designated institute(s)
Instituto Hidrográfico - Laboratório de Química e Poluição do Meio Marinho
Laboratório de Proteção e Segurança Radiológica, Instituto Superior Técnico
Laboratório Nacional de Engenharia Civil - Unidade de Hidráulica Metrológica
For Liquid Flow: Minimum Flow 1439,99 L/h; Maximum Flow 1,22E+06 L/h. For Flow Speed: Minimum Flow 0,05 m/s; Maximum Flow 6 m/s. (from 15 June 2021)
Lisbon
Qatar
Signatory/NMI
Qatar General Organization for Standards and Metrology
Romania
Signatory/NMI
National Institute of Metrology/Institutul National de Metrologie
* on behalf of INM
Designated institute(s)
National Institute of Research and Development for Physics and Nuclear Engineering - "Horia Hulubei"
Russian Federation
Signatory/NMI
Federal Agency on Technical Regulating and Metrology
* now Rosstandart
Designated institute(s)
Research Center for Applied Metrology - Rostest
All-Russian Scientific Research Institute of Physical Technical Measurements, Rosstandart
D.I. Mendeleyev Institute for Metrology, Rosstandart
All-Russian Scientific Research Institute for Optical and Physical Measurements, Rosstandart
Saudi Arabia
Signatory/NMI
Saudi Standards, Metrology and Quality Organization/National Measurement and Calibration Center
Designated institute(s)
King Abdulaziz City for Science and Technology
Serbia
Signatory/NMI
Directorate of Measures and Precious Metals
* now DMDM
Designated institute(s)
Vinča Institute of Nuclear Sciences
Singapore
Signatory/NMI
National Metrology Centre, Agency for Science, Technology and Research
* now NMC A*STAR; previously NMC, SPRING Singapore
Designated institute(s)
Health Sciences Authority
Slovakia
Signatory/NMI
Slovak Institute of Metrology/Slovenský Metrologický Ústav
Slovenia
Signatory/NMI
Metrology Institute of the Republic of Slovenia, Ministry of the Economy, Tourism and Sport
Designated institute(s)
MIRS/Jozef Stefan Institute/Low and Medium Energy Physics F2, Environmental Sciences O2
For Amount of substance/Chemical Elements/in Organic and Inorganic Matrices (from 05 March 2010)
Ljubljana
MIRS/Institute of Metals and Technology/Laboratory of Pressure Metrology
MIRS/National Institute of Biology/Department of Biotechnology and Systems Biology
For amount of substance/Bioanalysis of Nucleic Acids/GMOs and Microorganisms (from 05 March 2010)
Ljubljana
MIRS/Slovenian Institute of Quality and Metrology/Metrology
MIRS/University of Ljubljana, Faculty of Electrical Engineering/Laboratory of Metrology and Quality
MIRS/University of Ljubljana, Faculty of Mechanical Engineering/Laboratory for Measurements in Process Engineering
MIRS/University of Maribor, Faculty for Mechanical Engineering/Laboratory for Production Management
MIRS/Slovenian National Building and Civil Engineering Institute/Laboratory for Metrology
MIRS/Science and Research Centre Koper/ Laboratory of the Institute for Oliveculture
For amount of substance/Organic Compounds, in particular Fatty Acids, Sterols, Biophemols, Tocopherols, Waxes, Triacylglycerols, Stigmastadienes/in Biological Materials and food (from 05 March 2010)
Koper
South Africa
Signatory/NMI
National Metrology Institute of South Africa
* now the NMISA
Designated institute(s)
iThemba Laboratory for Accelerator-Based Sciences
For ionizing radiation: medium- and high-energy neutron measurements (from 27 February 2015)
Somerset West
Spain
Signatory/NMI
Centro Español de Metrología
Designated institute(s)
Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas
Instituto Nacional de Técnica Aerospacial
Instituto de Optica 'Daza de Valdés'
Instituto de Salud Carlos III
Laboratorio Central Oficial de Electrotecnica
Real Instituto y Observatorio de la Armada
Sri Lanka
Signatory/NMI
Measurement Units, Standards & Services Department
* The NMI did not participate in the CIPM MRA from 1 January 2015 to 16 August 2016
Sweden
Switzerland
Signatory/NMI
Federal Institute of Metrology METAS
* now METAS
Designated institute(s)
Institut Universitaire de Radiophysique Appliquée/Institute of Radiation Physics
For ionizing radiation: radioactivity; activity, units Bq and Bq/g (from 20 September 2002)
Lausanne
Physikalisch-Meteorologisches Observatorium Davos and World Radiation Center
For photometry and radiometry: solar irradiance, spectral solar irradiance, and essential climate variable: surface radiation budget (from 20 September 2002)
Davos Dorf
Syrian Arab Republic
Signatory/NMI
National Standards and Calibration Laboratory
Designated institute(s)
Syrian Atomic Energy Commission/National Radiation Metrology Laboratory
For ionizing radiation: dosimetry, radioactivity, neutron measurements (from 06 November 2014)
Tanzania (United Rep. of)
Signatory/NMI
Tanzania Bureau of Standards
Thailand
Signatory/NMI
National Institute of Metrology (Thailand)
Designated institute(s)
Bureau of Quality and Safety of Food, Department of Medical Science, Ministry of Public Health
For DNA quantification in food; chemistry: pesticide residues in food (from 22 August 2008)
Nonthaburi
Office of Atoms for Peace
Thailand Institute of Scientific and Technological Research, Ministry of Higher Education, Science, Research and Innovation
For chemistry: preservative agents in food and beverages (from 31 May 2016)
Changwat Pathum Thani
Tunisia
Signatory/NMI
Agence Nationale de Métrologie, Ministère du Commerce et de l'Artisanat
* Responsibility for the CIPM MRA has since been transferred to ANM
On behalf of ANM the CIPM MRA was resigned on: 14 October 2013
by: Mourad BEN HASSINE (then Director General, ANM)
Designated institute(s)
Laboratoire de métrologie du Ministère de la Défense Nationale
National Institute of Research and Physico and Chemical Analysis/Institut National de Recherches et d'Analyses Physico-chimiques
Türkiye
Signatory/NMI
National Metrology Institute of Türkiye/TÜBITAK Ulusal Metroloji Enstitüsü
Designated institute(s)
Marmara Research Center, Materials Institute - Underwater Acoustics Laboratory
Nuclear Energy Research Institute
Ukraine
Signatory/NMI
Ministry of Economic Development and Trade of Ukraine/Derzhspozhivstandard of Ukraine
Designated institute(s)
National Scientific Centre "Institute of Metrology"
For electricity and magnetism: DC voltage, current and resistance; other DC and low frequency measurements, electric and magnetic fields, radio frequency measurements, materials; for length: radiations of the Mise en Pratique, linear dimensions, form, complex geometry, various dimensional; for mass and related quantities: mass, density of solid, pressure, hardness, gravity, liquid flow, quantity of fluid, flow speed, multiphase flow; for photometry and radiometry; for ionizing radiation; for thermometry; for time and frequency
Kharkiv
State Enterprise "Ivano-Frankivsk scientific and production center for standardization, metrology and certification"
State Enterprise "Scientific and Research Institute for Metrology of Measurement and Control Systems"
State Enterprise "All-Ukrainian State Scientific and Production Center of Standardization, Metrology, Certification and Consumer' Rights Protection"
For acoustics, ultrasound, and vibration: vibration; for electricity and magnetism: impedance (up to the MHz range), AC voltage (up to the MHz range), AC current, AC power and energy, high voltage and current, phase angle; for length: angle, optical standards, reference materials; for mass and related quantities: density of liquid, refractive index of liquid, force, torque, viscosity, heat flow, hot water flow; for photometry and radiometry: refractive index (spectral), angle of rotation of plane of polarization (spectral), ellipsometric angles (spectral), haze; for metrology in chemistry; for thermometry: humidity
Kyiv
United Arab Emirates
Signatory/NMI
Emirates Metrology Institute
Designated institute(s)
Federal Authority for Nuclear Regulation SSDL
United Kingdom
Signatory/NMI
National Physical Laboratory
Designated institute(s)
LGC Ltd.
National Gear Metrology Laboratory
National Institute of Airborne Acoustic Metrology
National Institute for Biological Standards and Control
TÜV SÜD National Engineering Laboratory
United States of America
Signatory/NMI
National Institute of Standards and Technology
Designated institute(s)
Naval Undersea Warfare Center Division Newport, Underwater Sound Reference Division
Uruguay
Signatory/NMI
Laboratorio Tecnológico del Uruguay
Designated institute(s)
Laboratorios Tecnogestión - Ministerio de Industria, Energía y Minería
Administración Nacional de Usinas y Transmisiones Eléctricas
Uzbekistan
Signatory/NMI
Uzbek National Institute of Metrology of Uzstandard Agency
* on behalf of UzNIM SE
Viet Nam
Signatory/NMI
Vietnam Metrology Institute - Directorate for Standards and Quality
Zambia
Signatory/NMI
Zambia Metrology Agency
* Responsibility for the CIPM MRA has since been transferred to ZMA
On behalf of ZMA the CIPM MRA was resigned on: 23 July 2018
by: Himba C. CHEELO (Executive Director, ZMA)
Zimbabwe
Signatory/NMI
Scientific and Industrial Research and Development Centre - NMI
* The NMI did not participate in the CIPM MRA from 1 January 2021 to 7 February 2022
European Space Agency (ESA)
Signatory/NMI
European Space Agency
International Atomic Energy Agency (IAEA)
Signatory/NMI
International Atomic Energy Agency
European Commission - Joint Research Centre (JRC-Geel)
Signatory/NMI
European Commission - Joint Research Centre
* now integrated into the JRC
World Meteorological Organization (WMO)
Signatory/NMI
World Meteorological Organization
Designated institute(s)
Swiss Federal Laboratories for Materials Testing and Research
NOAA Earth System Research Laboratory
Physikalisch-Meteorologisches Observatorium Davos and World Radiation Center