JJF 1901-2021
Calibration Specification for Analog Clocks (English Version)

Standard No.

JJF 1901-2021

Language

Chinese, Available in English version

Release Date

2021

Published By

National Metrological Technical Specifications of the People's Republic of China

Latest

JJF 1901-2021

JJF 1901-2021 history

• 2021 JJF 1901-2021 Calibration Specification for Analog Clocks