Stainless steel Zahn viscosity cup designed for precision measurement of Newtonian and near-Newtonian fluids in coating, printing, and industrial applications. Compliant with ASTM D4212-93 standard. Available in 5 models (No.1-5) with nozzle diameters ranging from 2mm to 5.28mm, covering viscosity ranges from 5 to 1840 mm/s. Features a total length of 345mm and a capacity of 44ml, with temperature control requirements of 0.2C at 25C. Technical specifications include model-specific flow time ranges of 20 to 80 seconds, centipoise conversion capability, precision-drilled stainless steel nozzles, and detailed maintenance guidelines to ensure long-term accuracy. Ideal for quality control in paint manufacturing, ink formulation, and industrial coating processes. Includes complete measurement protocol instructions for standardized viscosity testing procedures.