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JCGM
Joint Committee for Guides in Metrology
The JCGM works to promote and harmonize metrology guidance, maintaining the Guide to the Expression of Uncertainty in Measurement (GUM) and the International Vocabulary of Metrology (VIM).
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Doc Types
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Components
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Relations
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Stages
Components 4
Structured elements that make up a JCGM identifier:
Publisher
EnumerationJCGM
JCGM
e.g.
JCGMNumber
IntegerThe guide number
1–3 digit number.
e.g.
100Year
YearPublication year
4-digit year, preceded by colon.
e.g.
2012Publisher Specific
JCGM publisher info
:publisherPubID Algebra 1
Relationships between JCGM identifiers:
| Relation | Description | Syntax | Example |
|---|---|---|---|
| Amendment | Modifies a JCGM guide | JCGM [Number]:[Year]/Amd [N]:[Date] | JCGM 100:2008/Amd 1:2025-07-25 |