Home / Standards / GB 7746-1997 GB 7746-1997 Abolished Anhydrous hydrogen fluoride for industrial use 工业无水氟化氢 Standard Type GB ICS 71.060.30 CCS G14 Status 废止 Issue Date 1997-06-24 Implementation 1998-01-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A