Poise (P)

Measurement unit of a fluid's resistance to flow, i.e., viscosity, defined, by the shear stress (in dynes per square centimetre) required to move one layer of a fluid along another over a total layer thickness of one centimetre at a velocity of one centimetre per second. This viscosity is independent of fluid density, and directly related to flow resistance. Viscosity = Shear stress/shear rate = dynes/cm2 divided by cm/s/cm = dynes/cm2 divided by s = 1 poise