Viscometer^ Ubbelohde Viscometer, with a more rugged design than standard Ubbelohde viscometers, measures kinematic viscosity of transparent liquids according to ASTM D445 and ISO 3104. Min sample volume: 11 mL. Min bath depth: 10 in. Size 150. Constant 0.035 cSt/s. Viscosity range 7 - 35 cSt.