Home / Standards / GB/T 27820-2011 GB/T 27820-2011 Abolished Chemicals - Test method of in vitro mammalian cells sister chromatid exchange 化学品 体外哺乳动物细胞姊妹染色单体交换试验方法 Standard Type GBT ICS 11.100 CCS A80 Status 废止 Issue Date 2011-12-30 Implementation 2012-08-01 Responsible Dept 国家标准委 Drafting Unit 国家标准委