... TVOC,NMTHC)2. Natgas, Artificial Gas, Coal-Mine Gas, LPG, Mixed Gas, High Purity Gas (Ar,He,O2,N2,CO2)3 ... , ethanol, ethyl acetate, ethyl butyrate, acetaldehyde)5. Dissolved Gas (hydrogen, methane, ethane, ethylene, acetylene, carbon monoxide, carbon ... Petrochemical Testing and Fine Chemicals (crude oil, gasoline, essence)Features1. GC9310 gas chromatograph control circuit using micro-processing ...