SRT-r01

3 July 2026

PTB, Germany

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SRT-r02

10 July 2026

DTI, Denmark

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SRT-r03

7 July 2026

NPL, United Kingdom

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SRT-r04

6 - 7 July 2026

INRIM, Italy

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SRT-r05

1 July 2026

TUBITAK, Türkiye

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SRT-r06

8 July 2026

UMTS, Ukraine

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