The standard specifies the determination method of volatile and non-volatile-matter content in paints and related coatings. Clarify the sample preparation and weighing requirements, standardize the heating, drying and other operation procedures and thermostatic time, and calculate the proportion of volatile and non-volatile matter through the mass change of the sample before and after heating. The standard provides scientific testing standards and judgment basis for accurately controlling the proportion of Coating components, evaluating Coating mass and performance, and ensuring mass Stability in production and application.