The ASTM D 2372-85 (2022) Standard Practice for Separation of Vehicle and Solvent Reducing Coatings provides a standardized method for separating vehicle components of coatings from solvent reducing coatings. The standard is mainly applicable to the composition analysis of coatings, especially when separate and separate measurement of vehicle components (such as Resin or Miscellaneous gluing components) and solvent-based Coating components is required. This method ensures accurate separation of vehicle components from solvents, thus providing accurate basic data for subsequent physical or chemical property testing. This procedure is very important in the fields of Coating production, quality control and composition analysis, and helps to ensure that Coating products meet the specified technical standards and requirements. By applying this standard rationally, relevant companies can improve the mass conformity of products, optimize production processes, and provide effective support for further research on Coating ingredients.