Home / Standards / GB/T 12137-2015 GB/T 12137-2015 Abolished Methods for leakage test of gas cylinders 气瓶气密性试验方法 Standard Type GBT ICS 23.020.30 CCS J74 Status 废止 Issue Date 2015-12-10 Implementation 2016-07-01 Responsible Dept 国家标准委 Drafting Unit N/A