ì Pas 1.00 Pas 10 Poise 1000 Centipoise Centipoise (cP) is commonly used to describe dynamic viscosity because water at a temperature of 20☌ has a viscosity of 1.002 Centipoise. So like its convenient density of 1 gm/cm 3, water at 20☌ provides a convenient comparison standard for viscosity. This unit can be combined with time (sec) to define dynamic viscosity. That unit does not prove to be convenient for many uses, but note that the viscosity of water at 20☌ is almost exactly 1 if expressed in centipoise or milli-Pascal seconds. With the standard SI unit being the Pascal second or Poiseuille. The kinematic viscosity of an oil (in stokes) whose specific gravity is 0. 1 centipoise The dynamic viscosity of water is 8.90 × 104 Pas or 8.90 × 103 dyns/cm2 or 0.890 cP at about 25 C. Viscosity of liquids is expressed in a variety of units: When a tube of smaller diameter is dipped in water, the water rises in the tube due to viscosity of water. The viscosity of water has been studied thoroughly because of the precision with which water flow must be controlled in many industrial applications. The low viscosity of water is important in its role as the solvent for life's chemical reactions and for blood circulation. The kinematic viscosity of water is 1.00410-6, or 0. For liquids, it corresponds to the informal concept of thickness. At 20 degrees Celsius, the dynamic, or absolute, viscosity of water is 1.00210-3, or 0.001002, Pa.s.The viscosity of water measures its resistance to flow and is critical to its many functions. The viscosity of a fluid is a measure of its resistance to deformation at a given rate.
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