Home / Standards / GB/T 23938-2009 GB/T 23938-2009 Abolished High purity carbon dioxide 高纯二氧化碳 Standard Type GBT ICS 71.100.20 CCS G86 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