The Zahn Cup CNDB Zahn Cup is manufactured in accordance with the relevant provisions of ASTM D4212-93 "Standard Test Method for Viscosity by Dip-Type Viscosity Cups" from the American Society for Testing and Materials (ASTM) standards for paints and raw materials, combined with practical production. This viscosity cup is used to test the viscosity of Newtonian or near-Newtonian liquids. Main technical parameters: ● Cup volume: 44ml ● Cup number: 1, 2, 3, 4, 5 ● Orifice diameter: (mm) 2.0, 2.7, 3.8, 4.3, 5.3 ● Measurement range: (cSt) 5–60, 20–250, 100–800, 200–1200, 400–1800 ● Correction factor: (0.95–1.05) 25℃±0.2℃ CNBD Zahn Cups