"SN/T 4182-2015 Determination of Propylene Oxide and Propylene Oxide Monomer in Imported Epoxy Resin Coatings, Headspace-Gas Chromatography, CG" stipulates the use of headspace-Gas chromatography, CG method for the determination of propylene oxide and propylene oxide monomer content in imported epoxy resin Coatings. This standard applies to Coating samples after N, N-dimethylethylene amide dissolves, heating at a certain temperature through headspace technology, so that the propylene oxide and propylene oxide monomer in Coatings reach gas-liquid equbriliate, separated by gas chromatograph and detected and quantified using a hydrogen Flame ionization detector, FFID. The standard details the steps of Sample Handling, Instrument Operation, and Data Analysis to ensure the accuracy and Reliability of the measurement results.