Why do we need viscosity measurement?

The ability to gather viscosity data on a material gives manufacturers an important information about “product dimension”.
This data it’s necessary to predict how the material will perform in the real world.
For example, if toothpaste does not have the correct viscosity, it can either be too difficult to squeeze out from the tube, or we could squeeze out too much.
Knowing the viscosity of a material/product is also necessary to design correct packaging and provide relevant transportation.
For viscosity measurement quality control laboratories are using Viscometers or Rheometers, choice of the instrument will depend on the material use for testing.

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