Viscosity is a measure of a substance's resistance to flow when a force is applied. A viscometer, also known as a viscosimeter, is an instrument used to measure the viscosity of fluids such as oils, plastics, paints, coatings, adhesives, waxes, and asphalt. The viscosity of a liquid affects its performance when being pumped, piped or used for impregnation and coating. Viscosity is also an...
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