Designation:D1865/D1865M−09(Reapproved2017)StandardTestMethodforHardnessofMineralAggregateUsedonBuilt-UpRoofs1ThisstandardisissuedunderthefixeddesignationD1865/D1865M;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodcoversthedeterminationofhardnessofalltypesofmineralsurfacingforuseonbuilt-uproofsandisintendedtoprovideanindexoftheirabilitytowithstandphysicalbreakdowninhandling.1.2ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2D75/D75MPracticeforSamplingAggregatesD451/D451MTestMethodforSieveAnalysisofGranularMineralSurfacingForAsphaltRoofingProductsE11SpecificationforWovenWireTestSieveClothandTestSieves3.SummaryofTestMethod3.1Mineralaggregateisempiricallyevaluatedfordegreeofbreakdownintosmallerpieces.Theprocedurecallsforasample,freeoffines,tobedroppedanominaldistanceof1.2m[4ft]400timeswhileinsideastandardizedtestapparatus.4.SignificanceandUse4.1Thistestmethodmeasurestheresistancetophysicalbreakdowninhandlingofbuilt-uproofingaggregates.5.Apparatus5.1A1.2-m[4-ft]lengthofclean50-mm[2-in.]ironpipefittedwitharemovablescrewcaponbothends,andmountedonasuitablestandsothatitcanberotatedaboutanaxisperpendiculartothelongdimensionofthepipe.5.2Balance,500-g[1lb]capacity,sensitiveto0.01%ofthecapacity.5.3SampleSplitter,riffle-type.5.4Sieves—Aseriesofsquare-openin...
