1.1 This standard prescribes the requirements and the methods of sampling and test for general purpose machinery oils for various types of non-critical (total loss) applications. It does not cover oils compounded with fixed oils or soaps.
1.2 This standard is not intended to cover oils containing additives but such oils are not precluded.
IS 493 Pt.1-1981 history
1982IS 493 Pt.1-1981 Specification for General Machinery and Spindle Oils Part I Machinery Oils