Cone/Plate Viscosimeter and Sub-Specimen Volume

Abstract

Owing to its geometry, the observed viscosity obtained with a Wells-Brook-field Micro Viscometer (LVT Cone/Plate, 1.565°) depends on sub-specimen volume. For each apparatus a compromise volume should be found, preferably giving both correct nominal values for Newtonian reference liquids and minimal variation with volume. Besides oil comparison liquids, the use of a water-ethanol comparison liquid is recommended for hemorheological measurements.

Key Words:

• Biorheology
• cone/plate viscosimeter
• quality control
• specimen volume
• viscosity
• viscosity comparison liquid