ASTM D3723-22 Standard Test Method for the Determination of Pigment Content in Water Latex Paints by Low Temperature Ash Ash Method specifies a standard method for the determination of pigment content in water latex paints by low temperature ashing. This method accurately determines residual inorganic pigment content by ashing samples at controlled low temperatures to remove organic components. This standard test method is suitable for the analysis of pigment content in water latex paint products and is an important means for studying Coating formulation, quality control and raw material analysis. Through this method, the pigment composition of water latex paint can be effectively evaluated to ensure that it meets the relevant mass requirements, and provides a basis for the control and adjustment of pigment in the production process.