Designation:D6584−13´1StandardTestMethodforDeterminationofTotalMonoglycerides,TotalDiglycerides,TotalTriglycerides,andFreeandTotalGlycerininB-100BiodieselMethylEstersbyGasChromatography1ThisstandardisissuedunderthefixeddesignationD6584;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ε1NOTE—TheformatsofEq11andEq16wereeditoriallycorrectedinApril2014.1.Scope*1.1Thistestmethodcoversthequantitativedeterminationoftotalmonoglyceride,totaldiglyceride,totaltriglyceride,andfreeandtotalglycerininB-100methylestersbygaschroma-tography.Therangeofquantitationformonoglycerideis0.009to0.77860mass%,fordiglycerideis0.092353to0.54475mass%,andfortriglycerideis0.00092857to1.3881mass%.Therangeofquantitationforfreeglycerinis0.0005714to0.019533mass%andfortotalglycerinfrom0.0090714to0.42767mass%.Thisprocedureisnotapplicabletovegetableoilmethylestersobtainedfromlauricoils,suchascoconutoilandpalmkerneloil.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2D4307PracticeforPreparationofLiquidBlendsforUseasAnalyticalStandardsE355PracticeforGasChromatographyTermsandRelation-shipsE594PracticeforTestingFlameIonizationDetectorsUsedinGasorSupercriticalFluidChromatography3.Terminology3.1Definitions:3.1.1biodiesel(B-100),n—fuelcomprisedofmono-alkylestersoflongchainfattyacidsderivedfromvegetableoilsoranimalfats.3.1.2bondedglycerin,n—glycerinportionofthemono-,di-,andtriglyceridemolecules.3.2DefinitionsofTermsSpecifictoThisStandard:3.2.1totalglycerin,n—sumoffreean...
