Home / Standards / GB/T 23967-2017 GB/T 23967-2017 Active Trimellitic Anhydride for industrial use 工业用偏苯三酸酐 Standard Type GBT ICS 71.080.50 CCS G17 Status 现行 Issue Date 2017-09-07 Implementation 2018-04-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A