Home / Standards / GB/T 21857-2008 GB/T 21857-2008 Active Testing of chemicals - Ready biodegradability - Modified OECD screening test 化学品 快速生物降解性 改进的OECD筛选试验 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