The standard "Determination of Viscosity with Ford Viscosity Cup" stipulates the method of using Ford Viscosity Cup to determine fluid viscosity. Clarify the scope of application and measurement principle, standardize the specifications and operation procedures of Ford Viscosity Cup, covering sample preparation, measurement Environmental requirements, liquid filling method and time measurement. By recording the time that the fluid flows out of the cup to convert the viscosity, providing a standardized operation basis for fast and convenient determination of fluid viscosity such as coatings and inks.