China 'GB/T 25915.10-2021
' standard english version:
NATIONAL STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
GB/T 25915.10-2021
Cleanrooms and associated controlled environments—Part 10: Classification of surface cleanliness by chemical concentration 洁净室及相关受控环境 第10部分:按化学物浓度划分表面洁净度等级
Issued Date:2021/8/20
Implemented Date:2022/3/1
Issued by:
The Standardization Administration of the People's Republic of China