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1.1 This classification is applicable to all petroleum-base fluid lubricants and to those nonpetroleum materials which may be readily blended to produce fluid lubricants of a desired viscosity, that is, lubricants for bearings, gears, compressor cylinders, hydraulic fluids, etc.
1.2 This classification is applicable to fluids ranging in kinematic viscosity from 2 to 1500 cSt (mm /s) as measured at a reference temperature of 40°C. Expressed in approximate equivalents, the range would be 32 to 7000 SUS. In the category of petroleum-base fluids, this covers the range from kerosine to heavy cylinder oils.
1.3 Fluids of either lesser or greater viscosity than the range described in 1.2 are at present seldom used as industrial lubricants. Should industrial practices change, then this system, based on a mathematical series of numbers, may be extended to retain its orderly progression.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
SAE StandardJ 300 Engine Oil Viscosity Classification
D341 Practice for Viscosity-Temperature Charts for Liquid Petroleum Products
ICS Number Code 75.100 (Lubricants, industrial oils and related products)
UNSPSC Code 15121500(Lubricating preparations)
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ASTM D2422-97(2002), Standard Classification of Industrial Fluid Lubricants by Viscosity System, ASTM International, West Conshohocken, PA, 1997, www.astm.orgBack to Top