ISO/TC25/WG16 for Cast Irons-Part 1 : Materials and properties for design held a video conference on 31 March, 2022. Attendees were from China, the United States, Britain, Germany, France, Italy and Japan. Two representatives of the National Technical Committee 54 on Foundry of Standardization Administration of China, Wang Zehua , professor of Hohai University, and Qian Kuncai professor of CRRC QISHUYAN INSTITUTE CO., LTD., attended the meeting. 

Under the chairmanship of Ms. Kathy Hayrynen, convener of ISO/TC25/WG16, the meeting discussed in detail the revisions of the ISO / TR 10809 and made corresponding modifications. Put forward by representatives of SAC/TC54 in this meeting, three suggestions on the revision of the ISO/TR 10809 were adopted.

The unified opinions were formed on revisions of ISO/TR 10809 in the meeting, which were further revised by Ms. Kathy Hayrynen after the meeting, revised draft was agreed to be submitted to the secretariats of the committe of member states for review.