Viscometer^ Ubbelohde Viscometer, with a more rugged design than standard Ubbelohde viscometers, measures kinematic viscosity of transparent liquids according to ASTM D445 & ISO 3104. Min sample vol: 11 mL. Min bath depth: 10 in. Size 700. Constant 100 cSt/s. Viscosity range 20000-100000 cSt.