Home / Standards / GB/T 3517-2014 GB/T 3517-2014 Abolished Rubber, raw natural―Determination of plasticity retention index (PRI) 天然生胶 塑性保持率(PRI)的测定 Standard Type GBT ICS 83.040.10 CCS G40 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