標準號：IS 9466-1980
發布日期：1980/6/1 12:00:00
實施日期：1999/12/31 12:00:00
適用范圍： This standard establishes a system of viscosity classification for indus-trial liquid lubricants and related fluids. This includes mineral oils used as lubricants, hydraulic fluids, electrical oils and for other applications.The usual method for kinematic viscosity determination is that specified in IS: 1448[P: 25]-1976*, but this may give anomalous results when used with non-Newtonian fluids (that is, those whose coefficient of viscosity varies significantly with rate of shear). For such fluids it is, therefore, important to state the particular method by which viscosity has been deter-mined. It is also recognized that there may be some pure chemicals and naturally occurring products, used as lubricants, which may not fall within this classification.