S.I. Donchenko, I.Yu. Blinov, Yu.S. Domnin, A.S. Goncharov, S.N. Slyusarev, I.B. Norets

Al’manac of Modern Metrology № 1 (17) 2019, pages 10–24

The article provides brief historical information, a description of the State primary standard of units of time, frequency, and the national time scale. Comparative assessments of the metrological characteristics of the standard before and after improvement measurements are presented. The directions for further development and improvement of the standard are given.

Key words: State primary standard, changes, time, frequency, characteristics, improvement, time scale.

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