Viscometer best price in Bangladesh
A rotational viscometer measures the rheological parameters of a fluid. This would include the viscosity at a range of shear rates. These measurements can also be taken at different temperatures to determine the effects of temperature. Figure 2.32 shows a typical result for viscosity (determined at a fixed shear rate) as a function of temperature. It shows the viscosity increasing significantly as the wax crystals come out of solution at lower temperatures. The temperatures at which the viscosity character change relate directly to the wax appearance temperature (W.A.T.) and the pour point.
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