Asset Publisher

Working Groups

Working Group Members

JCGM Working Group on the Expression of Uncertainty in Measurement (JCGM-WG1:GUM)

Convener

Dr Walter Bich

National Institute of Metrological Research/Istituto Nazionale di Ricerca Metrologica

Italy

Executive Secretary

Dr Carine Michotte

Bureau international des poids et mesures

France

List of meetings

Meetings and related documents

Upcoming Meeting

JCGM-WG1:GUM
  • From 18 to 21
  • November
  • 2025

Past Meeting

JCGM-WG1:GUM
  • From 21 to 24
  • May
  • 2024

Past Meeting

JCGM-WG1:GUM
  • From 13 to 17
  • November
  • 2023

Past Meeting

JCGM-WG1:GUM
  • From 09 to 12
  • May
  • 2023

jcgm-wg1 mission

Mission

Working Group 1 (WG1) of the Joint Committee for Guides in Metrology (JCGM) has responsibility for maintaining the Guide to the Expression of Uncertainty in Measurement, which is used worldwide at all levels of the measurement chain, from NMIs to industry, under the name JCGM 100:2008 (GUM 1995 with minor corrections).

In addition, the JCGM-WG1 has extended the scope of the GUM by producing a number of complementary documents to cover related topics in more detail. In this new perspective, JCGM100:2008 and all the complementary publications are parts of the GUM, which encompasses the whole suite of documents.

Please refer to the GUM Newsletter for information on the latest publications and documents in preparation.