Designation of Lubricants@ and Marking of Containers and Equipment Lube Points - This index provides a overview of lubricants and symbols for the purpose of assisting the user in the identification of the appropriate product and relevant SAE specification. The aim is to better determine he best lubricant to be used for a particular application. If containers used for shipping lubricants are also to be marked@ the same identification and symbols should be used. See also ISO 5169 Machine tools - Presentation of lubrication instructions. EXAMPLES FOR THE MARKING OF LUBRICATION POINTS ON EQUIPMENT AND/OR SHIPPING CONTAINERS Index of Lubricants and Symbols - See Table 1. Recommendations for the Choice of Lubricants for Machine Tools - See Table 2. ISO Viscosity Grades - See Table 3. NLGI Consistency numbers for lubricating greases - See Table 4.