Home / Standards / GB/T 23518-2020 GB/T 23518-2020 Active Palladium on carbon catalyst 钯炭 Standard Type GBT ICS 77.150.99 CCS H68 Status 现行 Issue Date 2020-09-29 Implementation 2021-08-01 Responsible Dept 中国有色金属工业协会 Drafting Unit N/A