Home / Standards / GB/T 21795-2008 GB/T 21795-2008 Active Testing of chemicals - Simulation test Aerobic sewage treatment - Biofilms 化学品 模拟试验 污水好氧处理 生物膜法 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 N/A