Dr Haiyong Gan
Consultative Committee for Photometry and Radiometry
Experts
From 10 to 11 May 2022
Consultative Committee for Photometry and Radiometry
Experts
From 19 to 20 September 2019
CCPR Working Group on CMCs
Delegates
28 April 2022
CCPR Working Group on CMCs
Delegates
06 October 2021
CCPR Working Group on Key Comparisons
Delegates
18 September 2019