VISCOSITYINDEXTABLESFORCELSIUSTEMPERATURESASTMDATASERIESPUBLICATIONDS39B05-039020-12AAMERICANSOCIETYFORTESTINGANDMATERIALS1916RaceStreet,Philadelphia,Pa.19103©byAMERICANSOCIETYFORTESTINGANDMATERIALS1975LibraryofCongressCatalogCardNumber:75-10096ISBN0-8031-0817-6NOTETheSocietyisnotresponsible,asabody,forthestatementsandopinionsadvancedinthispublication.PrintedinBaltimore,Md.May1975February1986SecondPrintingJanuary1990ThirdPrintingNovember1996FourthPrintingForewordThesetableswerepreparedtoprovideaconvenientmeansofobtainingtheviscosityindexofpetroleumproductsandlubricantswithouttheneces-sityofcalculation.TheyhavebeenpreparedunderthesponsorshipofResearchandDevelopmentDivisionVIIonFlowPropertiesofASTMCommitteeD-2.ThispublicationisintendedtoreplacethepreviousViscosityIndexTables:DS39a.Thosewerebasedon100and210°Fasreferencetemperatures.ThesenewtablesarebasedonASTMMethodD2270-74forCalculatingViscosityIndexfromKinematicViscosityat40and100°C.MethodD2270-74waspreparedincompliancewithworldwideagreementsreachedwithintheInternationalStandardsOrganizationtoadopt40and100°Celsiusastheprimaryreferencetemperaturesfortheviscositydeter-minationsofpetroleumlubricantsandrelatedproducts.ResearchandDevelopmentDivisionVIIofASTMCommitteeD-2wasrequestedbyTechnicalCommittee28oftheInternationalStandardsOrganizationtoprepareanewstandardforcalculatingviscosityindex.Thiswastobebasedonkinematicviscositiesdeterminedat40and100°C,andtobeinagreementwiththepriorMethodD2270-64using100and210°F.ItwasalsorequestedthatnewViscosityIndexTablesbepreparedwhichwouldobviatethenecessityfordetailedcalculations.Thispublicationful-fillsthatrequest.Duringtheinterimperiodinwhichtheuseof100and210°Fasreferencetemperaturesisbeingphasedout,eitherDS39aorthisnewpublicationcanbeusedinterchangeably.W.A.WrightPastChairmanResearchandDevelopmentDivisionvnASTMCommitteeD-2AcknowledgmentofWorkPersonnelofResearchandDevelopmentDivisionVIIofASTMCom-mitteeD-2responsibleforthedevelopmentofASTMStandardMethodD2270-74,CalculatingVis...