Home / Standards / GB/T 23953-2009 GB/T 23953-2009 Abolished Dimethyldichlorosilane for industrial use 工业用二甲基二氯硅烷 Standard Type GBT ICS 71.080.99;83.040 CCS G17 Status 废止 Issue Date 2009-06-02 Implementation 2010-02-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A