Poise

Encyclopedia : P : PO : POI : Poise

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The poise (P) is the unit of dynamic viscosity in the centimetre gram second system of units. It is named after Jean Louis Marie Poiseuille.

1 P = 1 g·cm⁻¹·s⁻¹

The analogous unit in the International System of Units is the pascal second (Pa·s):

1 Pa·s = 1 kg·m⁻¹·s⁻¹ = 10 P

The poise is often used with the prefix centi-; a centipoise (cP) is one millipascal second (mPa·s) in SI units.

Water has a viscosity of 0.0089 poise at 25 °C.

Most chemicals have their viscosity measured in poises.

 

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