Home / Standards / GB/T 25789-2023 GB/T 25789-2023 Active p-Phenylenediamine 对苯二胺 Standard Type GBT ICS 71.100.01;87.060.10 CCS G56 Status 现行 Issue Date 2023-12-28 Implementation 2024-07-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A