Screen factor measurements on polymer solutions

Flow time of volume of polymer solution through screen viscometer Flow time for same volume of solvent through screen viscometer 

Discussed Level of shearing Level of filtration or applied 

5 Very high shear—long time in blender at higher intensity—single or multipass flow through porous medium at high flow rate. 

4 Moderate shear in porous medium—one pass at moderate rate. 

3 Moderate shear in blender—short time, moderate intensity. 

---