Home / Standards / GB/T 7139-2023 GB/T 7139-2023 Active Plastics—Vinyl chloride homopolymers and copolymers—Determination of chlorine content 塑料 氯乙烯均聚物和共聚物 氯含量的测定 Standard Type GBT ICS 83.080.20 CCS G31 Status 现行 Issue Date 2023-08-06 Implementation 2024-03-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A