ASTM_D_3487_-_16e1.pdf

Designation:D3487161Standard Specification forMineral Insulating Oil Used in Electrical Apparatus1This standard is issued under the fixed designation D3487;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.This standard has been approved for use by agencies of the U.S.Department of Defense.1NOTEIn X1.1,for Thermal conductivity,W/was added before(mC)editorially in December 2017.1.Scope1.1 This specification covers unused mineral insulating oilof petroleum origin for use as an insulating and coolingmedium in new and existing power and distribution electricalapparatus,such as transformers,regulators,reactors,circuitbreakers,switchgear,and attendant equipment.1.2 This specification is intended to define a mineral insu-lating oil that is functionally interchangeable and miscible withexisting oils,is compatible with existing apparatus and withappropriate field maintenance,2and will satisfactorily maintainits functional characteristics in its application in electricalequipment.This specification applies only to new insulating oilas received prior to any processing.1.3 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.1.4 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:3D92 Test Method for Flash and Fire Points by ClevelandOpen Cup TesterD97 Test Method for Pour Point of Petroleum ProductsD117 Guide for Sampling,Test Methods,and Specificationsfor Electrical Insulating Oils of Petroleum OriginD445 Test Method for Kinematic Viscosity of Transparentand Opaque Liquids(and Calculation of Dynamic Viscos-ity)D611 Test Methods for Aniline Point and Mixed AnilinePoint of Petroleum Products and Hydrocarbon SolventsD923 Practices for Sampling Electrical Insulating LiquidsD924 Test Method for Dissipation Factor(or Power Factor)and Relative Permittivity(Dielectric Constant)of Electri-cal Insulating LiquidsD971 Test Method for Interfacial Tension of Oil AgainstWater by the Ring MethodD974 Test Method for Acid and Base Number by Color-Indicator TitrationD1275 Test Method for Corrosive Sulfur in Electrical Insu-lating LiquidsD1298 Test Method for Density,Relative Density,or APIGravity of Crude Petroleum and Liquid Petroleum Prod-ucts by Hydrometer MethodD1500 Test Method for ASTM Color of Petroleum Products(ASTM Color Scale)D1524 Test Method for Visual Examination of Used Elec-trical Insulating Liquids in the FieldD1533 Test Method for Water in Insulating Liquids byCoulometric Karl Fischer TitrationD1816 Test Method for Dielectric Breakdown Voltage ofInsulating Liquids Using VDE ElectrodesD1903 Practice for Determining the Coefficient of ThermalExpansion of Electrical Insulating Liquids of PetroleumOrigin,and AskarelsD2112 Test Method for Oxidation Stability of InhibitedMineral Insulating Oil by Pressure VesselD2300 Test Method for Gassing of Electrical InsulatingLiquids Under Electrical Stress and Ionization(ModifiedPirelli Method)1This specification is under the jurisdiction of ASTM Committee D27 onElectrical Insulating Liquids and Gasesand is the direct responsibility of Subcom-mittee D27.01 on Mineral.Current edition approved June 15,2016.Published July 2016.Originallyapproved in 1976.Last previous edition approved in 2009 as D3487 09.DOI:10.1520/D3487-16E01.2Refer to the Institute of Electrical and Electronic Engineers,Inc.(IEEE)C 57.106,Guide for Acceptance and Maintenance of Insulating Oil in Equipment.Available from IEEE Operations Center,445 Hoes Lane,Piscataway,NJ 08854-4141,USA.3For 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.Copyright 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 D2440 Test Method for Oxidation Stability of MineralInsulating OilD2668 Test Method for 2,6-di-tert-Butyl-p-Cresol and 2,6-di-tert-Butyl Phenol in Electrical Insulating Oil by Infra-red AbsorpD2717 Test Method for Thermal Conductivity of LiquidsD2766 Test Method for Specific Heat of Liquids a