Laboratory Exercise Rheograms of Suspensions

The rheological parameters of non-Newtonian fluids can be estimated by using any type of coaxial viscometer. In these instruments a bob or spindle rotates within a test fluid contained into a cup. The torque necessary to overcome the viscous resistance is measured while the degree to which the spring 

Any rotational viscometer, such as the Brookfield model DV, or the Anton-Paar Rheolab QC, can be used. The suggested test fluids of the pseudoplastic type can be paper pulp or orange juice concentrate, while the dilatant type can be concentrated starch or limestone suspensions. 

---