Designation:D6472−10StandardSpecificationforRecycledGlycolBaseEngineCoolantConcentrateforAutomobileandLight-DutyService1ThisstandardisissuedunderthefixeddesignationD6472;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope*1.1Thisspecificationcoverstherequirementsforrecycledethyleneglycolbaseenginecoolantconcentrateandrecycledpropyleneglycolbaseenginecoolantconcentrateforuseinautomobilesandlight-dutyvehicles.CommitteeD15hasdevelopedthisspecificationusingexperience,knowledgeandresearchfromrecyclingusedaqueousbaseenginecoolantandblendsofusedaqueousbaseenginecoolantandvirginglycol.Thisstandarddoesnotapplytocoolantproducedfromotherglycolsourcessuchasmedicalwaste,distillationbottoms,airplane/airportdeicersandpolyesterproductionwaste.Thisspecificationprovidesaprocedureforevaluatingenginecool-antrecyclingtechnologiesthroughtherecyclingofareferencesyntheticusedenginecoolant.Italsospecifiesthechemical,physical,andperformancerequirementsfortherecycledglycolbaseenginecoolantconcentratethatisproducedfromthatprocedure.Whenusedat40to70volume%inwater,itwillfunctioneffectivelyduringbothwinterandsummer.Thismaterialisintendedtoprovideprotectionagainstfreezing,boiling,andcorrosioninautomobileorotherlight-dutyservicecoolingsystems.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareapproximateequivalentsandprovidedforinformationonly.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2D512TestMethodsforChlorideIonInWaterD516TestMethodforSulfateIoninWaterD1119TestMethodforPercentAshContentofEngineCoolantsD1120TestMeth...
