The Stein Hall Viscosity Cup for adhesives determines the number of seconds required for a set volume of adhesive to flow through the viscometer's orifice.
The Stein hall cup must be calibrated before performing the test. Check the orifice to make sure it is not plugged, corroded or worn.
The instrument used throughout the industry since 1934 is called a Viscosity Cup or Stein-Hall Cup. The readings obtained do not directly correspond with any other viscosity scale.