automotive, heavy vehicle lubricant
Short description: lubricant properties and test methods Learning outcome: students can explain the various properties possessed by the lubricant and how the testing is done relevance: students can perform effective lubrication procedures on a heavy equipment unit Properties of Lubricants and Test Methods Viscosity The deficit of the viscosity is a measure of fluid rejection of the deformation under shear stress or fluid rejection of the pour. Based on the measurement, the viscosity is divided into two points of view: Kinematic viscosity Absolute viscosity 1. Kinematic viscosity What is meant by kinematic viscosity is the average size showing the liquid rejection of the pouring of a fluid. While the general definition is condensed or diluted a fluid is measured by the flow time parameter of a fluid from point A to point A '. Kinematic viscosity @ T ° C = t x K Unit = cSt (centistokes) with t = flow time, K = pumpkin constant, T = measurement temperature 2. A