ASTM_D_117_-_22.pdf

Designation:D11722Standard Guide forSampling,Test Methods,and Specifications for ElectricalInsulating Liquids1This standard is issued under the fixed designation D117;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.Scope1.1 This guide describes methods of testing and specifica-tions for electrical insulating liquids intended for use inelectrical cables,transformers,liquid-filled circuit breakers,and other electrical apparatus where the liquids are used asinsulating,or heat transfer media,or both.1.2 The purpose of this guide is to outline the applicabilityof the available test methods.Where more than one is availablefor measuring a given property,their relative advantages aredescribed,along with an indication of laboratory convenience,precision,(95%confidence limits),and applicability to spe-cific types of electrical insulating liquids.1.3 This guide is classified into the following categories:Sampling Practices,Physical Tests,Electrical Tests,ChemicalTests,and Specifications.Within each test category,the testmethods are listed alphabetically by property measured.A listof standards follows:CategorySectionASTM StandardSampling:3D923Physical Tests:Aniline Point4D611Coefficient of Thermal Ex-pansion5D1903Color6D1500Examination:Visual Infrared7D1524,D2144,D2129Flash and Fire Point8D92Interfacial Tension9D971Pour Point of PetroleumProducts10D97,D5949,D5950Particle Count in MineralInsulating Oil11D6786Refractive Index and SpecificOptical Dispersion12D1218Relative Density(SpecificGravity)13D287,D1217,D1298,D1481,D4052Specific Heat14D2766Thermal Conductivity15D2717Viscosity16D445,D2161,D7042Electrical Tests:CategorySectionASTM StandardDielectric Breakdown Voltage17D877,D1816,D3300Dissipation Factor and Rela-tive Permittivity(DielectricConstant)18D924Gassing CharacteristicUnder Thermal Stress19D7150Gassing Tendency20D2300Resistivity21D1169Chemical Tests:Acidity,Approximate22D1534Carbon-Type Composition23D2140Compatibility with Construc-tion Material24D3455Copper Content25D3635Elements by InductivelyCoupled Plasma(ICP-AES)26D7151Furanic Compounds inElectrical Insulating Liquids27D5837Dissolved Gas Analysis28D3612Gas Content of Cable andCapacitor Liquids29D831,D1827,D2945Neutralization(Acid andBase)Numbers30D664,D974Oxidation Inhibitor Content31D2668,D4768Oxidation Stability32D1934,D2112,D2440Polychlorinated BiphenylContent(PCB)33D4059Sulfur,Corrosive34D1275Water Content35D1533Specification:Mineral Insulating Liquid forElectrical Apparatus36D3487Less Flammable ElectricalInsulating Liquids37D5222Silicone Fluid used for ElectricalInsulation38D4652Natural(Vegetable Oil)EsterFluids used in ElectricalApparatus39D68711.4 The values stated in SI units are to be regarded asstandard.The values stated in parentheses are provided forinformation only.1.5 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety,health,and environmental practices and deter-mine the applicability of regulatory limitations prior to use.1.6 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for the1This guide is under the jurisdiction of ASTM Committee D27 on ElectricalInsulating Liquids and Gases and is the direct responsibility of SubcommitteeD27.01 on Mineral.Current edition approved May 1,2022.Published June 2022.Originallypublished as D117 21 T.Last previous edition approved in 2018 as D117 18.DOI:10.1520/D0117-22.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.1Development 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 ProductsD287 Test Method for API Gravity of Crude Petroleum andPetroleum Products(Hydrometer Method)D445 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 SolventsD664 Test Method for Acid Number of Petroleum Productsby Potentiometric TitrationD831 Test Method for Gas Content of Cable and Capacitor