... capillary columnWorkstation Version: EnglishMajor application fields1. Building Indoor Environment Testing (Benzene, toluene, xylene, TVOC,NMTHC)2. Natgas, ... ethane, ethylene, acetylene, carbon monoxide, carbon dioxide)6. Petrochemical Testing and Fine Chemicals (crude oil, gasoline, essence)Features1. ... cooling the column box, power data protection.6. GC9310 gas chromatograph with self-test function, ...