Home / Standards / GB/T 30431-2013 GB/T 30431-2013 Abolished Gas chromatograph for laboratory 实验室气相色谱仪 Standard Type GBT ICS 17.180.99 CCS N52 Status 废止 Issue Date 2013-12-31 Implementation 2014-08-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A