Home / Standards / GB/T 25915.1-2010 GB/T 25915.1-2010 Abolished Cleanrooms and associated controlled environments - Part 1: Classification of air cleanliness 洁净室及相关受控环境 第1部分：空气洁净度等级 Standard Type GBT ICS N/A CCS C70 Status 废止 Issue Date 2011-01-14 Implementation 2011-05-01 Responsible Dept 国家标准委 Drafting Unit N/A