8/1/2023 0 Comments Viscosity test procedure![]() But, while the Rheo-stick is an effective on-site viscosity comparator, it does not measure the physical viscosity of oil in centistokes and cannot give an indication of the chemical composition of the oil, or identify contaminants or degradation by-products. ![]() The Rheo-stick is a user-friendly visual viscosity comparator intended to monitor changes in the viscosity of lubricating oils. ![]() Viscosity is a property of significance as it affects friction and wear between interacting metal surfaces.” The most important rheological property of a lubricant is its viscosity, or a fluid’s resistance to flow. “The Rheo-stick got its name from the word ‘rheology’, which is a branch of physics that deals with the study of the deformation of matter, such as lubricating oils. Thick oil has a high viscosity and thin oil has a low viscosity. ![]() WearCheck technical manager, Steven Lumley, elaborates, “It is important to know the viscosity (thickness) of a lubricant because this determines its film strength and its efficiency in preventing friction between moving parts. Condition monitoring specialists, WearCheck, recently launched a quick, cost-effective viscosity test kit known as the WearCheck Rheo-stick.
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