It is important when using a Ford Cup and when retesting liquids that the temperature of the cup and the liquid is maintained, as ambient temperature makes a significant difference to viscosity and thus flow rate. However, the conditions in a simple flow cup are seldom ideal for making true measurements of viscosity. Under ideal conditions, this rate of flow would be proportional to the kinematic viscosity (expressed in stokes and centistokes) that is dependent upon the specific gravity of the draining liquid. The Ford viscosity cup is a simple gravity device that permits the timed flow of a known volume of liquid passing through an orifice located at the bottom. The higher the viscosity of a liquid, the thicker it is and the greater the resistance to flow.
JSTOR ( July 2023) ( Learn how and when to remove this template message) In layman’s terms, viscosity defines a fluid’s resistance to flow.Unsourced material may be challenged and removed.įind sources: 'Ford viscosity cup' – news Please help improve this article by adding citations to reliable sources.
