Natural gases consist of methane(major component), other hydrocarbons and permanent gases like hydrogen, oxygen, nitrogen as well as carbon dioxide. They are used as major energy sources in numerous industries and it is very critical to accurately determine them because their value differs depending on chemical composition and the concentration of each component.

In this study, ChroZen GC verifies its reliability by effectively determining each component of natural gases by one GC according to ASTM D1945.