Home / Standards / GB/T 21826-2008 GB/T 21826-2008 Abolished Chemicals - Test method of acute oral toxicity - Up and down procedure (UDP) 化学品 急性经口毒性试验方法 上下增减剂量法(UDP) Standard Type GBT ICS 11.100 CCS A80 Status 废止 Issue Date 2008-05-12 Implementation 2008-09-01 Responsible Dept 国家标准委 Drafting Unit N/A