Comparison Display

CIPM MRA PARTICIPANTS

The KCDB - the BIPM key comparison database – supports the CIPM MRA. The KCDB contains information on the internationally recognized Calibration and Measurement Capabilities (CMCs) for services available from the participating institutes, and the key and supplementary comparisons supporting these CMCs.

All data listed in the KCDB have been reviewed and approved within the CIPM Mutual Recognition Arrangement

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CIPM MRA PARTICIPANTS

CMC statistics

Published CMC statistics

Comparison statistics

Comparison

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GULFMET.TF-S2

Information & contact
Participants

Metrology area, Sub-field	Time and Frequency, Time
Description	Time scale difference
Time of measurements	2025 - 2026
Status	Approved

Final Reports of the comparisons	GULFMET.TF-S2 Final report 2026 14pp DOI:10.59161/LCBK1480
References	Technical protocol
Measurand	Time scale difference
Parameters	GNSS common view method

Comparison type	Supplementary Comparison
Consultative Committee	CCTF (Consultative Committee for Time and Frequency)
Conducted by	GULFMET (Gulf Association for Metrology)
Pilot institute	SASO-NMCC National Measurement and Calibration Center - Saudi Standards, Metrology and Quality Organization Saudi Arabia
Contact person	khalid Aldawood +966505480920
Additional	Waleed Alharbi, National Measurement and Calibration Center - Saudi Standards, Metrology and Quality Organization Assaf Alassaf, National Measurement and Calibration Center - Saudi Standards, Metrology and Quality Organization

Pilot laboratory
SASO-NMCC	National Measurement and Calibration Center - Saudi Standards, Metrology and Quality Organization, Saudi Arabia, GULFMET

AzMI	Azerbaijan Institute of Metrology, Azerbaijan, COOMET

EMI	Emirates Metrology Institute, United Arab Emirates, GULFMET

NIS	National Institute for Standards, Egypt, AFRIMETS

UME	TÜBITAK Ulusal Metroloji Enstitüsü, Türkiye, EURAMET

UzNIM

Uzbek National Institute of Metrology, Uzbekistan, COOMET