Designation:D7517−19StandardSpecificationforFully-Formulated1,3Propanediol(PDO)BaseEngineCoolantforHeavy-DutyEngines1ThisstandardisissuedunderthefixeddesignationD7517;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope*1.1Thisspecificationcoverstherequirementsforfully-formulatedglycolbasecoolantsforcoolingsystemsofheavy-dutyengines.Whenconcentratesareusedat40to60%PDOconcentrationbyvolumeinwaterofsuitablequality,(seeAppendixX1),orwhenpredilutedPDObaseenginecoolants(50volume%minimum)areusedwithoutfurtherdilution,theywillfunctioneffectivelyduringbothwinterandsummertoprovideprotectionagainstcorrosion,cavitation,freezing,andboiling.1.2Thecoolantsgovernedbythisspecificationarecatego-rizedasfollows:CoolantTypeDescriptionI-FF1,3PropanediolbaseconcentrateII-FF1,3Propanediolpredilute(50vol%)1.3CoolantconcentratesmeetingthisspecificationdonotrequireanyadditionofSupplementalCoolantAdditive(SCA)untilthefirstmaintenanceintervalwhenamaintenancedoseofSCAisrequiredtocontinueprotectionincertainheavy-dutyenginecoolingsystems,particularlythoseofthewetcylinderliner-in-blockdesign.TheSCAadditionsaredefinedbyandaretheprimaryresponsibilityoftheenginemanufacturerorvehiclemanufacturer.Iftheyprovidenoinstructions,followtheSCAsupplier’sinstructions.1.4ThevaluesstatedinSIunitsaretoberegardedasthestandard.ThevaluesgiveninparenthesesafterSIunitsareprovidedforinformationonlyandarenotconsideredstandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.1.6Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisi...
