How to use a Viscosity Cup?
Once the viscosity cup is truely horizontal (this is best achieved using a cup stand and bubble level), cover the exit orifice and fill the cup making sure that the meniscus of the liquid is above the rim of the cup. Using the glass draw plate, remove the meniscus into the overflow ring and close the cup. Open the exit orifice and remove the glass draw plate. Time between the removal of the glass draw plate and the first break in the liquid’s flow is measured.
