Viscosity Measurement by Houillon Method
The viscosity of a lubricating oil can be considered as its most
important physical property. It must be monitored and controlled
carefully because of its impact on the oil and the oil’s impact on
equipment life and reliability. Basically, the viscosity can be defined
as the property of a liquid characterizing its internal friction or
resistivity to flow. Physics defines several types of viscosity and
separate two families between Newtonian and non Newtonian fluids.
There are mainly two related measures of fluid viscosity