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GUM Guide

InternationalGUM

Description

Specific GUM (Guide to the Expression of Uncertainty in Measurement) publications.

Syntax

JCGM identifiers follow: JCGM [Number]:[Year] or JCGM GUM-[Part]:[Year]. The GUM guides use the GUM prefix.

Examples 2

JCGM GUM-1:2022-11-28
JCGM GUM-6:2020

Components Used

JCGM GUM Guide identifiers are composed of these elements:

Publisher
Enumeration

JCGM

JCGM
e.g.JCGM
Number
Integer

The guide number

1–3 digit number.
e.g.100
Year
Year

Publication year

4-digit year, preceded by colon.
e.g.2012
Publisher Specific

JCGM publisher info

:publisher

Algebraic Relations

Relations that can involve GUM Guide identifiers:

RelationDescriptionSyntaxExample
AmendmentModifies a JCGM guideJCGM [Number]:[Year]/Amd [N]:[Date]JCGM 100:2008/Amd 1:2025-07-25

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