Viscosity is related
to the concept of shear force and can be understood as the effect of different layers of the fluid exerting a shearing force on each other, or on other surfaces, as they move against each other. Viscosity lies behind the skin friction component of drag.
Kinematic viscosity is a measure of the rate at which momentum is transferred through a fluid.
Lazar Scientific supplies a variety of Viscometers to help you measure viscosity and fluid properties. Also available are a full range of Viscometer tubes for testing petroleum products.