And the lower the viscosity, the thinner the oil. The higher the viscosity, the thicker the oil. Viscosity nowadays means a measurement of the flowability of a lubricating oil or hydraulic fluid. Several modern devices have been installed in the laboratory just for determining viscosity alone. OELCHECK principally assesses viscosity in oil samples at 40☌ and 100☌ and calculates the viscosity index from this. Since it can change when an oil is being used, it is one of the most fascinating and extensive topics in lubricant analytics. It is also dependent on temperature and can be infl uenced by special additives. It plays the decisive role in the choice of accompanying lubricant as it describes its fl uid characteristics. Viscosity is the most important physical characteristic of an oil.
The single most important physical characteristic of any oil
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