Viscosity, or a fluid’s resistance to flow, is independent of the rate of shear or shear stress, at a given temperature, for Newtonian fluids. Non-Newtonian fluids such as polymer solutions often ...

The United States Pharmacopeia has stated that references to General Chapter <911> "Viscosity" will be changed to General Chapter <911> "Viscosity-Capillary Viscometer Methods," <912> "Rotational ...

Capillary viscometer and flow cups (orifice viscometers) The working principle of these instruments is based on the determination of the time needed for a standard volume of fluid to pass through a ...

Kinematic viscometers have historically been of the gravity-driven glass capillary type, as specified in ASTM D446, and directly measure kinematic viscosity following the ASTM D445 Test Method.

This article discusses how using the hand-held, solvent-free SpectroVisc Q3000 Series in the field delivers accurate kinematic viscosity measurements immediately, even when compared to conventional ...