QIMT Glossary

Definitions of Metrology terms & phrases.

If you know of a term or phrase that belongs here, you can submit the term or phrase and associated definition by adding an entry. NOTE: All entries are reviewed and approved prior to being seen by others on the site.

Procedure for adding a Definition:

  1. Click on the "Add a New Entry" button.
  2. Under the first required field labeled 'Concept', enter the Metrology word or term.
  3. In the 'Description' Field, put the definition, don't forget to use the "DeWord" button to remove MS Word formatting if you are copying and pasting from MS Word; see lounge forum for note regarding this issue.
  4. Ignore the other entries and submit.

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Consultative Committee for Amount of Substance - Metrology in chemistry. Established 1993.


Consultative Committee for Ionising Radiation. Established 1958.


Consultative Committee for Thermometry. Established 1937.


Consultative Committee for Time and Frequency. Established 1956.


Consultative Committee for Units. Established 1964.


Centro Español de Metrología, the national metrological institute of Spain.


Comité Européene de Normalisation. European standardisation organisation.


Conférence Générale des Poids et Mesures. Held for the first time in 1889. Meeting every 4th year.

Check standard

Working standard routinely used to ensure that measurements are made correctly.


Comité Internationale des Poids et Mesures.

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