Home / Standards / GB/T 8660-2018 GB/T 8660-2018 Active Solution polymerized butadiene rubber(BR)—Evaluation procedures 溶液聚合型丁二烯橡胶(BR) 评价方法 Standard Type GBT ICS 83.060 CCS G35 Status 现行 Issue Date 2018-12-28 Implementation 2019-11-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A