Designation:E1037−15StandardTestMethodforMeasuringParticleSizeDistributionofRDF-51ThisstandardisissuedunderthefixeddesignationE1037;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodisusedtodeterminethesizedistribu-tionofaRDF-5sample.Sizeisdefinedasthemaximumlengthoftheparticle,wherelengthisdeterminedbytheRDF-5manufacturingprocess.Thatis,apellet,cubette,orbriquetteallhavearecognizablelength.Fig.1displaysthesizesandshapesofsomeRDF-5particles.1.2AnairdriedRDF-5sampleisseparatedintocategoriesofdifferingparticlesizes.Thesizedistributionismeasuredastheweightpercentageofeachsizecategory.Agraphofafunctionofthecumulativefractionofmaterialbyweightfinerthanparticlesizeversusparticlesizeisplotted.Fromthisplotaretakenvalueswhichdescribethesizedistribution—theuniformityconstantandthecharacteristicparticlesize.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.Terminology2.1Definitions:2.1.1RDF-5—solidfuelderivedfrommunicipalsolidwasteinwhichtheprocessedcombustiblefractionisdensified(compressed)intotheformofpellets,cubettesorbriquettes.3.SignificanceandUse3.1TheparticlesizedistributionofRDF-5stronglyinflu-encesthestorageandhandlingcharacteristicsofthefuel.Smallparticlestendtoblockflowthroughstoragebinsandfeedhoppers,althoughcorrectbinandhopperdesignswillalleviatethisproblemofblockage.3.2ThistestmethodofmeasuringsizemanuallyallowsaccuratedescriptionofRDF-5particlesizedistribution.Manualmeasurementissuperiortosievingtechniques,whereinparticlesmaybebrokenbythesizeseparationtechniqueitself.However,handmeasurementismoretime-consumingthansievingtechniques.4.Appara...
