Home / Standards / GB/T 18604-2014 GB/T 18604-2014 Abolished Measurement of natural gas flow by gas ultrasonic flow meters 用气体超声流量计测量天然气流量 Standard Type GBT ICS 75.180.30 CCS E98 Status 废止 Issue Date 2013-12-13 Implementation 2014-06-01 Responsible Dept 国家标准委 Drafting Unit N/A