Viscosity-pressure correlation of liquids

A single correlation was obtained to predict Newtonian viscosity-pressure coefficients of mineral oils, resin and polymer blends, pure hydrocarbons, and nonhydrocarbons. The correlation has been tested for a temperature range from 0/sup 0/C (32/sup 0/F) to 135/sup 0/C (275/sup 0/F). The empirical correlation makes use of atmospheric-viscosity and density at the temperature of interest and viscosity-temperature property (m/sub 0/) of the fluids. When the correlation was compared with other leading correlations, it was shown to require less physical-property data, apply to a wider range of chemical compositions, cover a wider range in fluidity, and provide greater accuracy. The correlation is presented in the form of a polynomial equation. 22 references, 3 figures, 9 tables.