Home / Standards / GB/T 3780.29-2022 GB/T 3780.29-2022 Active Carbon black—Part 29:Determination of solvent extractable material 炭黑 第29部分:溶剂可萃取物的测定 Standard Type GBT ICS 83.040.20 CCS G49 Status 现行 Issue Date 2022-12-30 Implementation 2023-04-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A