Designation:D5635/D5635M−18(Reapproved2022)StandardTestMethodforDynamicPunctureResistanceofRoofingMembraneSpecimens1ThisstandardisissuedunderthefixeddesignationD5635/D5635M;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodcoverstheevaluationofthedynamicpunctureenergythatroofingmembranespecimenscanwithstand,withoutallowingthepassageofwater,whensub-jectedtoimpactfromarigidobjecthavingasharpedge.1.2Thislaboratorytestcanbeconductedatanydesiredtemperatureusingmembranespecimensmanufacturedinafactoryorpreparedinalaboratory.1.3Roofmembranespecimenstowhichthetestmethodisapplicableincludebituminousbuilt-up,polymer-modifiedbitumens,vulcanizedrubbers,non-vulcanizedpolymeric,andthermoplasticmaterials.1.3.1Theapplicabilityofthistestmethodtothesemem-branespecimensincludestheiruseinvegetativeroofsystems.1.4Thistestmethodisnotapplicabletoaggregate-surfacedmembranespecimens;however,itisapplicabletospecimenshavingfactory-appliedgranules.1.5ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnonconformancewiththestandard.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.1.7Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1...
