Designation:D1176−14(Reapproved2019)StandardPracticeforSamplingandPreparingAqueousSolutionsofEngineCoolantsorAntirustsforTestingPurposes1ThisstandardisissuedunderthefixeddesignationD1176;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheU.S.DepartmentofDefense.1.Scope1.1Thispracticecoversinformationonsamplingandpre-paringsolutionsofenginecoolantsandantirusts(Notes1and2).1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesafterSIunitsareprovidedforinformationonlyandarenotconsideredstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.NOTE1—Antirustasreferredtointhispracticecoversproductsintendedforuseinautomotive/light-dutyandheavy-dutyapplicationsinwhichwaterisusedasthecoolingmedium.NOTE2—Antirustproductsareavailableinliquidandsolidform.SolidsshouldbehandledasoutlinedinAnnexA1.1.4Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D1122TestMethodforDensityorRelativeDensityofEngineCoolantConcentratesandEngineCoolantsByTheHydrometerD1193SpecificationforReagentWaterD5931TestMethodforDensityandRelativeDensityofEngineCoolantConcentratesandAqueousEngineCool-antsbyDigitalDensityMeter3.SignificanceandUse3.1Thispracticeisusedcommonlybyvehicleserviceorlaboratorypersonnelforsamplingandpreparingaqueoussolutionsofenginecool...