Glossary
G-1
Glossary
Control High and Low Limits
The measured values, expressed in engineering units, which cause control
output to change.
Centipoise/milli-pascal-seconds
Units of absolute viscosity. The viscosity of water at room temperature is 1
centipoise or 1 milli-pascal-second.
Correlation
A relationship, usually shown as a graph, between one measurement and
another. When correlating two viscosity measurements, it must be shown
that a particular value from one measurement always corresponds to a
particular value in the other. The conditions (method, temperature, amount
of rotations, etc.) should remain constant to obtain this correlation.
Cup Seconds
The amount of time required for a given fluid to flow completely from an
efflux cup through its chamber and accurately machined bottom orifice.
Dyne-centimeter/milli-Newton-meter
Units of torque that is measured as a force acting at a distance from a
reference point, such as the axis of rotation of an object.
Engineering Units
Units of viscosity as displayed on the readout panel of a viscometer. These
units may be in centipoise, or other units which relate to absolute viscosity,
such as cup seconds.
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