Kinematic viscosity
Kinematic viscosity, with unit measurement mm2/s or centistoke (cSt) is the relationship between dynamic viscosity in mPa and the density of the oil in g/cm3 at the temperature the viscosity is to be measured. Within the oil industry the viscosity is measured by determining the time required for a stipulated amount of oil to flow through a calibrated glass capillary tube. One of the most commonly used instruments for determining the kinematic viscosity is Ubbelohde's viscosimeter.
