Designation:D7666−12(Reapproved2019)StandardSpecificationforTriglycerideBurnerFuel1ThisstandardisissuedunderthefixeddesignationD7666;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thisspecificationcoverstwogradesofburnerfuelconsistingoftriglyceridesandnaturallyoccurringconstituentsoftriglyceridesincludingmonoglycerides,diglycerides,andfreefattyacidsanddistinguishedbythepourpoint.Thegradedesignation(TBF)identifiesthemastriglycerideburnerfuels.1.2Thetriglycerideburnerfuelsspecifiedareintendedforuseincommercialorindustrialairorsteam-atomizedfueloilburningequipmentmanufacturedfrommaterialscompatiblewithfuelshavinganacidnumberasspecifiedinTable1andundervariousclimaticandoperatingconditionsforthepur-posesofheatgeneration.Thefuelsspecifiedhereinarenotintendedforblendingwithconventionalfueloilsforthispurpose.Theyarenotintendedforuseinburners<0.32GJ⁄h(0.3×106BTU⁄h)suchasresidentialburnersorsmallpressureatomizationburnersnoraretheyintendedforuseininternalcombustionenginesormarineapplications.NOTE1—Forinformationonthesignificanceoftheterminologyandtestmethodsusedinthisspecification,seeAppendixX1.1.3Thisspecificationdoesnotaddressthefrequencywithwhichanyparticulartestshallberun.1.4Nothinginthisspecificationshallprecludeobservanceofnationalorlocalregulations,whichcanbemorerestrictive.1.5Thetextofthisstandardreferencesnotesandfootnotesthatprovideexplanatorymaterialandshallnotbeconsideredasrequirementsofthestandard.Thetableinthisstandardreferencesfootnotes,andthesearetobeconsideredasrequire-mentsofthestandard.1.6ThevaluesgiveninSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.7Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro...