Home / Standards / GB/T 11848.11-1989 GB/T 11848.11-1989 Abolished Determination of thorium in uranium ore concentrate by thorin photometric method 铀矿石浓缩物中钍的测定 钍试剂光度法 Standard Type GBT ICS 27.120.30 CCS F46 Status 废止 Issue Date 1989-10-21 Implementation 1990-08-01 Responsible Dept 国家标准委 Drafting Unit N/A