ASTM_D_5372_-_20.pdf

Designation:D537220Standard Guide forEvaluation of Hydrocarbon Heat Transfer Fluids1This standard is issued under the fixed designation D5372;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*21.1 This guide provides information,without specific limits,for selecting standard test methods for testing heat transferfluids for quality and aging.These test methods are consideredparticularly useful in characterizing hydrocarbon heat transferfluids in closed systems.1.2 The values stated in SI units are to be regarded asstandard.1.2.1 ExceptionThe values given in parentheses are forinformation only.1.3 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:3D86 Test Method for Distillation of Petroleum Products andLiquid Fuels at Atmospheric PressureD91 Test Method for Precipitation Number of LubricatingOilsD92 Test Method for Flash and Fire Points by ClevelandOpen Cup TesterD93 Test Methods for Flash Point by Pensky-MartensClosed Cup TesterD95 Test Method for Water in Petroleum Products andBituminous Materials by DistillationD97 Test Method for Pour Point of Petroleum ProductsD189 Test Method for Conradson Carbon Residue of Petro-leum ProductsD445 Test Method for Kinematic Viscosity of Transparentand Opaque Liquids(and Calculation of Dynamic Viscos-ity)D471 Test Method for Rubber PropertyEffect of LiquidsD524 Test Method for Ramsbottom Carbon Residue ofPetroleum ProductsD664 Test Method for Acid Number of Petroleum Productsby Potentiometric TitrationD893 Test Method for Insolubles in Used Lubricating OilsD1160 Test Method for Distillation of Petroleum Products atReduced PressureD1298 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)D2270 Practice for Calculating Viscosity Index from Kine-matic Viscosity at 40 C and 100 CD2887 Test Method for Boiling Range Distribution of Pe-troleum Fractions by Gas ChromatographyD4052 Test Method for Density,Relative Density,and APIGravity of Liquids by Digital Density MeterD4530 Test Method for Determination of Carbon Residue(Micro Method)D6743 Test Method for Thermal Stability of Organic HeatTransfer FluidsD7042 Test Method for Dynamic Viscosity and Density ofLiquids by Stabinger Viscometer(and the Calculation ofKinematic Viscosity)D7896 Test Method for Thermal Conductivity,ThermalDiffusivity,and Volumetric Heat Capacity of EngineCoolants and Related Fluids by Transient Hot Wire LiquidThermal Conductivity MethodE203 Test Method for Water Using Volumetric Karl FischerTitrationE659 Test Method for Autoignition Temperature of Chemi-calsE1269 Test Method for Determining Specific Heat Capacityby Differential Scanning CalorimetryG4 Guide for Conducting Corrosion Tests in Field Applica-tions3.Terminology3.1 Definitions of Terms Specific to This Standard:1This guide is under the jurisdiction of ASTM Committee D02 on PetroleumProducts,Liquid Fuels,and Lubricantsand is the direct responsibility of Subcom-mittee D02.L0.06 on Non-Lubricating Process Fluids.Current edition approved Sept.1,2020.Published October 2020.Originallyapproved in 1993.Last previous edition approved in 2017 as D5372 17.DOI:10.1520/D5372-20.2The background for this standard was developed by a questionnaire circulatedby ASTM-ASLE technical division L-VI-2 and reported in LubricationEngineering,Vol 32,No.8,August 1976,pp.411416.3For 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.*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.3.1.1 heat transfer fluid,na petroleum oil or relatedhydrocarbon material which remains essentially a liquid whiletransferring heat to or from an apparatus or process.Smallpercentages of nonhydrocarbon components such as antioxi-dants and dispersants can be present.4.Significance and Use4.1 The signifi