What Does A Lubricant's ISO VG Number Mean?
The term "International Standards Organization Viscosity Grade," or simply "ISO VG 46," is reported in values ranging from 2 to 1500. This figure is crucial since choosing the proper oil for your machinery depends primarily on the viscosity of the lubricant. Certain that equipment is manufactured all over the world, it was vital to establish a standard that equipment users could use to determine the best lubrication for a given piece of machinery. A fluid's viscosity is described as its resistance to flowing at a particular temperature. Viscosity can be defined more simply as a lubricant's thickness at a specific temperature. Kinematic viscosity, which evaluates a fluid's flow under the influence of gravity and is expressed in centistokes or CST, is used to measure ISO VG. The Capillary Tube Viscometer Test is one of the most popular testing tools. Oil is used in a glass capillary U-tube for this test, which is carried out at a regulated temperatur...