Home / Standards / GB/T 30918-2014 GB/T 30918-2014 Abolished Isoprene rubber(IR)―Non-oil-extended,solution-polymerized typs―Evaluation procedure 非充油溶液聚合型异戊二烯橡胶(IR) 评价方法 Standard Type GBT ICS 83.040 CCS G35 Status 废止 Issue Date 2014-07-08 Implementation 2014-12-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A