Designation:D1122−20StandardTestMethodforDensityorRelativeDensityofEngineCoolantConcentratesandEngineCoolantsByTheHydrometer1ThisstandardisissuedunderthefixeddesignationD1122;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheU.S.DepartmentofDefense.1.Scope*1.1Thistestmethodcoversthedeterminationoftherelativedensityofglycols,glycerin,heattransferfluids,enginecoolantconcentrates,andaqueousenginecoolants.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesafterSIunitsareprovidedforinformationonlyandarenotconsideredstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.1.4Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D1176PracticeforSamplingandPreparingAqueousSolu-tionsofEngineCoolantsorAntirustsforTestingPurposesE100SpecificationforASTMHydrometersE230/E230MSpecificationforTemperature-ElectromotiveForce(emf)TablesforStandardizedThermocouples3.Terminology3.1Definitions:3.1.1relativedensity,n—theratioofthedensityofamaterialatastatedtemperaturetothedensityofwateratthesamestatedtemperature.4.SignificanceandUse4.1Therelativedensityofanenginecoolantmaybeusedtodeterminetheapproximatepercentglycol,freezingpoint,andboilingpoint,providedtheglycoltypeisknown.4.2Therelativedensityofanenginecoolantconcentratecanbeusedasapro...
