China 'GB/T 19520.21-2023
' standard english version:
NATIONAL STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
GB/T 19520.21-2023
Mechanical Structure of Electrical and Electronic Equipment 482.6 mm (19 in) Series Mechanical Structure Dimensions Part 3-109: Chassis Dimensions of Embedded Computing Devices 电气和电子设备机械结构 482.6 mm(19 in)系列机械结构尺寸 第3-109部分:嵌入式计算设备的机箱尺寸
Issued Date:2023.11.27
Implemented Date:2024.6.1
Issued by:
The Standardization Administration of the People's Republic of China