Ubbelohde ASTM Main features For kinematic viscosity tests on Newtonian liquids using ASTM (UNE 400313, ASTM D445-446, ASTM D2515 and ISO 3104-3105) standard methods. Each viscometer comes with a calibration certificate with meter constant and formulas to calculate viscosities. Ubbelohde Viscometers are used to determine kinematic viscosities of transparent Newtonian liquids such as jet and hydraulic lubricants. Sample volume: 11 ml. Precision: ±0.2%.