The standard "HG/T 5066-2016 dispersant for water-based paints" applies to polypropylene (PP) salts and other carboxylic acid salts and their modified inorganic synthesized polymer dispersants. The standard specifies the performance requirements for the dispersion and stability of dispersants for pigments and extenders in water-based paints. It does not apply to water-based paints and colorants containing nano-pigments and high-pigment carbon black. The standard aims to ensure the effectiveness and Stability of dispersants in Coatings.