2018YD/T 5033-2018 Conference television system engineering acceptance specifications
2005YD/T 5033-2005 Acceptance Specifications of Videoconference System Engineering
1997YD 5033-1997 Code for Acceptance of Videoconference System Engineering
YD 5033-1997 Code for Acceptance of Videoconference System Engineering was changed to YD/T 5033-2005 Acceptance Specifications of Videoconference System Engineering.