Designation:D4171−21AnAmericanNationalStandardStandardSpecificationforFuelSystemIcingInhibitors1ThisstandardisissuedunderthefixeddesignationD4171;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope*1.1Thisspecificationcoversadditivesforaviationfuels(forexample,SpecificationsD910,D7547,andD1655)usedtoinhibiticeformationinaircraftfuelsystems.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.3WARNING—Mercuryhasbeendesignatedbymanyregulatoryagenciesasahazardoussubstancethatcancauseseriousmedicalissues.Mercury,oritsvapor,hasbeendem-onstratedtobehazardoustohealthandcorrosivetomaterials.UseCautionwhenhandlingmercuryandmercury-containingproducts.SeetheapplicableproductSafetyDataSheet(SDS)foradditionalinformation.Thepotentialexiststhatsellingmercuryormercury-containingproducts,orboth,isprohibitedbylocalornationallaw.Usersmustdeterminelegalityofsalesintheirlocation.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.1.5Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D56TestMethodforFlashPointbyTagClosedCupTesterD93TestMethodsforFlashPointbyPensky-MartensClosedCupTesterD268GuideforSamplingandTestingVolatileSolventsandChemicalIntermediatesforUseinPaintandRelatedCoatingsandMaterial(Withdrawn2021)3D891TestMethodsforSpecificGravity,Apparent,of...
