This standard describes a method for determining the viscosity of paints and related liquid materials using an immersion viscosity cup. This method is suitable for viscosity control work in laboratories and factories, especially for Newtonian and near-Newtonian liquids. Immersion viscosity cups are widely used for their ease of use and durability, but for non-Newtonian liquids, such as shear thinning or thixotropic materials, Miscellaneous more accurate measurement equipment is recommended. The standard also mentions that under high shear rate conditions, Miscellaneous equipment such as rotational viscometers provide more detailed information.