Home / Standards / GB 8983-1998 GB 8983-1998 Abolished Breathing oxygen supplies for aircraft 航空呼吸用氧 Standard Type GB ICS 71.100.20 CCS G86 Status 废止 Issue Date 1998-10-19 Implementation 1999-04-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A