This standard specifies the inspection method for the initial dryness of Liquid inks, which is applicable to inks with an apparent viscosity in the range of 0.05 Pa · s to 0.25 Pa · s. Initial dryness measures the rate at which inks change from liquid to solid within a certain period of time at a specified temperature, Humidity, expressed in millimeters every 30 seconds. The standard details the tools and materials required, including scratch paper, cotton yarn, scruf solvent, etc., to ensure accurate determination of the initial drying performance of inks.