Home / Standards / GB/T 39694-2020 GB/T 39694-2020 Active Hydrogenated acrylonitrile-butadiene rubber(HNBR)—General specification and evaluation procedure 氢化丙烯腈-丁二烯橡胶(HNBR) 通用规范和评价方法 Standard Type GBT ICS 83.060;83.040.10 CCS G35 Status 现行 Issue Date 2020-12-14 Implementation 2021-11-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A