Measurement and testing
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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
PIN 27.3 June/July 2026
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