Home / Standards / GB/T 614-2021 GB/T 614-2021 Active Chemical reagent—General method for the determination of refractive index 化学试剂 折光率测定通用方法 Standard Type GBT ICS 71.040.30 CCS G60 Status 现行 Issue Date 2021-08-20 Implementation 2022-03-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A