Designation:D7052/D7052M−17StandardTestMethodforDeterminingImpactResistanceofNewLowSlopeRoofMembranesUsingSteelBalls(Z8295Z)1ThisstandardisissuedunderthefixeddesignationD7052/D7052M;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodcoversthedeterminationofimpactresistanceofnewlowsloperoofmembraneswhenapplieddirectlyoverrigidinsulationorcoverboard,orstructuralconcrete,lightweightinsulatingconcrete,gypsum,cementi-tiouswoodfiberorwoodroofdecks.Theproceduresweredevelopedtodeterminethepotentialforpunctureorfractureofthenewroofmembraneresultingfromimpactsbyfreefallingsteelballsresultinginspecificimpactenergieswhenthenewroofmembraneisappliedoveritstestedsubstratewithinanassembly.1.2Thistestmethodisintendedtoverifythatproductsasdescribedwillmeetaspecificstatedconditionofimpactresistanceperformance.Testingofasphaltshinglesisbeyondthescopeofthistestmethod.ThetestsyieldclassificationidentifiedasClass2andClass3.1.3ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2A295/A295MSpecificationforHigh-CarbonAnti-FrictionBearingSteelD1079TerminologyRelatingtoRoofingandWaterproofingG154PracticeforOperatingFluorescentUltraviolet(UV)LampApparatusforExposureofNonmetallicMaterials3.Terminology3.1Fordefinitionsoftermsusedinthisstandard,seeTerminologyD1079.3.2Definitions:3.2.1a...
