Home / Standards / GB/T 8658-1998 GB/T 8658-1998 Abolished Rubber,raw styrene-butadiene,emulsion-polymerized--Determination of bound styrene content--Refractive index method 乳液聚合型苯乙烯-丁二烯橡胶生胶结合苯乙烯含量的测定 折光指数法 Standard Type GBT ICS 83.060 CCS G34 Status 废止 Issue Date 1998-07-13 Implementation 1999-02-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A