Home / Standards / GB/T 32471-2016 GB/T 32471-2016 Active Plastics—Determination of the isomer ratio in toluene diisocyanates for use in the production of polyurethanes 塑料 用于聚氨酯生产的甲苯二异氰酸酯异构比的测定 Standard Type GBT ICS 83.040 CCS G31 Status 现行 Issue Date 2016-02-24 Implementation 2016-09-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A