China 'GB/T 20969.4-2021
' standard english version:
NATIONAL STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
GB/T 20969.4-2021
Special environmental condition—Machinery for plateau—Part 4:Guide rule of test for plateau natural environment—Internal combustion engines 特殊环境条件 高原机械 第4部分:高原自然环境试验导则 内燃动力机械
Issued Date:2021/12/31
Implemented Date:2022/7/1
Issued by:
The Standardization Administration of the People's Republic of China