ASTM_D_4304_-_17.pdf

Designation:D430417Standard Specification forMineral and Synthetic Lubricating Oil Used in Steam or GasTurbines1This standard is issued under the fixed designation D4304;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope*1.1 This specification covers mineral and synthetic(APIgroup I,II,III,or IV)oils used in steam and gas turbinelubrication systems where the performance requirements de-mand highly refined mineral or synthetic base oils compoundedwith rust and oxidation inhibitors plus selected additives asneeded to control foam,wear,demulsibility,and so forth.Thisstandard may also be applied to“combined cycle”turbinesystems,where a single lubricant circulating system is used tosupply oil to a steam and gas turbine configured in tandemeither on a single or separate shaft for enhanced energyefficiency.1.2 This specification is intended to define the properties ofmineral and synthetic oil-based turbine lubricating oils that arefunctionally interchangeable with existing oils of this type,arecompatible with most existing machinery components,andwith appropriate field maintenance,will maintain their func-tional characteristics.1.3 This specification is intended to define only new lubri-cating oil before it is installed in the machinery.1.4 This specification is intended to be used as a guide.It ispossible that oils that do not meet this specification mayperform satisfactorily in some turbines.1.5 This specification does not include API Group V fluids.For polyol ester fluids used to lubricate land-based gasturbines,the user is referred to the current version of militaryspecification MIL-PRF-23699 for fluid performance require-ments.For phosphate ester fluids used as turbine lubricants orsteam turbine electro-hydraulic control(EHC)fluids,the useris referred to the current version of Specification D4293 forfluid performance requirements.1.6 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.1.7 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2D92 Test Method for Flash and Fire Points by ClevelandOpen Cup TesterD97 Test Method for Pour Point of Petroleum ProductsD130 Test Method for Corrosiveness to Copper from Petro-leum Products by Copper Strip TestD445 Test Method for Kinematic Viscosity of Transparentand Opaque Liquids(and Calculation of Dynamic Viscos-ity)D664 Test Method for Acid Number of Petroleum Productsby Potentiometric TitrationD665 Test Method for Rust-Preventing Characteristics ofInhibited Mineral Oil in the Presence of WaterD892 Test Method for Foaming Characteristics of Lubricat-ing OilsD943 Test Method for Oxidation Characteristics of InhibitedMineral OilsD974 Test Method for Acid and Base Number by Color-Indicator TitrationD1401 Test Method for Water Separability of Petroleum Oilsand Synthetic FluidsD1500 Test Method for ASTM Color of Petroleum Products(ASTM Color Scale)D2272 Test Method for Oxidation Stability of Steam Tur-bine Oils by Rotating Pressure VesselD2422 Classification of Industrial Fluid Lubricants by Vis-cosity SystemD3339 Test Method forAcid Number of Petroleum Productsby Semi-Micro Color Indicator Titration1This specification is under the jurisdiction of ASTM Committee D02 onPetroleum Products,Liquid Fuels,and Lubricants and is the direct responsibility ofSubcommittee D02.C0.01 on Turbine Oil Monitoring,Problems and Systems.Current edition approved June 1,2017.Published June 2017.Originallyapproved in 1984.Last previous edition approved in 2013 as D4304 13.DOI:10.1520/D4304-17.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.*A Summary of Changes section appears at the end of this standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1 D3427 Test Method for Air Release Properties of Hydrocar-bon Based OilsD4052 Test Method for Density,Relative Density,and APIGravity of Liquids by Digital Density MeterD4057 Practice for