ASTM D6133-2002 (2021) Standard Test Method specifies the determination of acetone, p-o-chlorotrifluorotrichloro toluene, methyl acetate or tert-butyl acetate in solvent-based paints and water-based paints, Coating Resin and raw materials by direct injection of Gas Chromatograph. This method uses gas chromatograph technology to accurately analyze the content of the above chemicals to help evaluate the composition of Coatings and raw materials and their potential impact on the environment and health. The standard details sample preparation, instrument setup, test procedures and Data analysis requirements to ensure accuracy and Repeatability of results. This test method is widely used in the quality control of Coatings, Resins and related products to promote the development and production of products that comply with environmental regulations.