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  • Bingham Plastic Fluids Bingham Plastic Fluids have a yield value which must be exceeded before it will start to flow like a fluid. From that point the viscosity will decrease with increase of agitation. Toothpaste, mayonnaise and tomato catsup are examples of such products.
  • Dilatant Fluids Shear Thickening Fluids or Dilatant Fluids increase their viscosity with agitation. Some of these liquids can become almost solid within a pump or pipe line. With agitation, cream becomes butter and Candy compounds, clay slurries and similar and similar heavily filled liquids do the same thing.
  • Thixotropic Fluids Shear Thinning Fluids or Thixotropic Fluids reduce their viscosity as agitation or pressure is increased at a constant temperature. ketchup and mayonnaise are examples of thixotropic materials. They appear thick or viscous but are possible to pump quite easily.
  • Newtonian Fluids Fluids for which the shearing stress is linearly related to the rate of shearing strain are designated as Newtonian Fluids.Newtonian materials are referred to as true liquids since their viscosity or consistency is not affected by shear such as agitation or pumping at a constant temperature. Fortunately ...
  • Commonly used viscosity unit - Degree Engler Degree Engler is used in Great Britain as a scale to measure kinematic viscosity. Unlike the Saybolt and Redwood scales, the Engler scale is based on comparing a flow of the substance being tested to the flow of another substance - water. Viscosity in Engler degrees is the ratio of the time of a flow ...
  • Commonly used viscosity unit - Saybolt Universal Seconds Saybolt Universal Seconds(SUS) is used to measure viscosity. The efflux time is Saybolt Universal Seconds required for 60 milliliters of a petroleum product to flow through the calibrated orifice of a Saybolt Universal viscometer, under carefully controlled temperature and as prescribed by test method ...
  • Viscosity and Reference Temperatures The viscosity of a fluid is highly temperature dependent and for either dynamic viscosity or kinematic viscosity to be meaningful, the Reference Temperature must be quoted. In ISO 8217 the reference temperature for a residual fluid is 100 degree Celsius. For a distillate fluid the reference temperature ...
  • Two related measures of fluid viscosity There are two related measures of fluid viscosity, knows as dynamic(absolute) viscosity and kinematic viscosity.Dynamic(absolute) viscosity is the tangential force per unit area required to move one horizontal plane with respect to the other at unit velocity when maintained an unit distance apart by ...
  • Introduction of Viscosity The viscosity of a fluid is an important property in the analysis of liquid behavior and fluid motion near solid boundaries.The viscosity is the fluid resistance to shear or flow and is a measure of the adhesive/cohesive of frictional fluid property. The resistance is caused by intermolecular friction ...
  • Coulometric water determination Coulometric water determination is primarily used for the determination of small amounts of water. Larger amounts of water require a lot of time and/or may exceed the water capacity of the Karl Fischer reagent, which could lead to incorrect results. Metrohm Karl Fischer Coulometers work in a determination ...