It meets HJ 1012-2018 " Ambient air and stationary source emission ——Specifications and test procedures for hydrocarbons, methane and nonmethane hydrocarbons portable total monitoring instrument". The whole process of high temperature accompanying heat can effectively avoid the loss of high boiling point and high concentration samples, and accurately measure total hydrocarbons, methane and non-methane total hydrocarbons in the exhaust gas of fixed pollution sources and unorganized emissions, and the detection limit can reach ppb level.