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DENSITY Table of Contents Physical & Chemical Properties Density is the mass of a unit volume of a substance. Oil density is used to determine the mass of a given volume, or the volume of a given mass. Density is used in lubrication to identify an oil, or oil fractions, and in the measurement of kinematic viscosity (absolute viscosity divided by density). Also, density is in the equations for the calculation of temperature rise in an oil film, and the equation for Reynolds Number (which determines if flow of an oil film is laminar (smooth layers) or turbulent (tumbling). The SI unit for density is kg m-3, but usually reported as grams/ml (g/ml-1). For example, an oil could be 850 kg m-3 or 0.850 g ml-1. The density of mineral oil lubricants varies from 0.86 to 0.98 g ml-1 For more information call 1-888-HERGUTH (437-4884) |
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