Home / Standards / GB/T 21829-2008 GB/T 21829-2008 Active Testing of chemicals - Simulation test Aerobic sewage treatment - Aactivated sludge units 化学品 污水好氧处理模拟试验 活性污泥单元法 Standard Type GBT ICS 13.020.40 CCS A80 Status 现行 Issue Date 2008-05-12 Implementation 2008-09-01 Responsible Dept 国家标准委 Drafting Unit 国家标准委