JJF 1809-2020
Calibration Specification for Retroreflectometers (English Version)

Standard No.

JJF 1809-2020

Language

Chinese, Available in English version

Release Date

2020

Published By

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

Latest

JJF 1809-2020

JJF 1809-2020 history

• 2020 JJF 1809-2020 Calibration Specification for Retroreflectometers