What is viscosity measured in?

Question

What is viscosity measured in?

Answer 1

It depends on what kind of viscosity you are talking about.

There is the dynamic (or absolute) viscosity (η) which is measured in Poise : 1 P = 1 g/cm/s.

It can also be measured in Pascal second (SI units) : 1 Pa.s = 1 kg/m/s

And there is the kinematic viscosity (ν = η/ρ), where and ρ is the density (in g/cm^3). It is measured in stockes : 1 stokes = 1 cm2•s−1

Viscosity is measured with a viscometer. The active part of the portable viscometer is a vibrating rod held in oscillation by a constant electrical power. The vibration amplitude varies according to the product viscosity where the rod is immersed.

For examples of viscometers look here:

http://www.sofraser.com

Answer 2

centipoise

Answer 3

Reynolds numbers,  named after Osborne Reynolds. Oh wait thats viscosity and resistance to inertia....

Answer 4

Or, for something really thick, Poise.  It can also be in KU units (Krebs units).

Answer 5

http://en.wikipedia.org/wiki/Viscosity

Answer 6

punch a hole in the bottom of a can

dump in water ,time how long it takes to drain.

dump in maple syrup time it

that is viscosity

a ratio of a subance to water

Answer 7

The correct SI unit of viscosity is the Pa.s. The most usual unit is the mPa.s