Designation:D6222/D6222M−11StandardSpecificationforAtacticPolypropylene(APP)ModifiedBituminousSheetMaterialsUsingPolyesterReinforcements1ThisstandardisissuedunderthefixeddesignationD6222/D6222M;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thisspecificationcoversprefabricatedmodifiedbitumi-noussheetmaterialsreinforcedwithpolyesterfabric,withorwithoutgranules,thatuseatacticpolypropylene(APP)astheprimarymodifierandareintendedforuseinthefabricationofmultipleplyroofingandwaterproofingmembranes.NOTE1—Manymodifiedbituminoussheetsarecurrentlymarketedwithpolyestermatreinforcedwithglassyarnstoimproveprocessinginthemanufactureofthefinishedmodifiedbitumenproductandtoreducedistortionsthatmaybeintroducedduringproduction.TheseglassyarnsaretypicallyasmallpercentageofthereinforcementanddonotcontributetothephysicalpropertiesofthefinishedproductsomuchastomaketheseproductsbeclassifiedbySpecificationD6223.1.2Thisspecificationisintendedasamaterialspecificationonly.Issuesregardingthesuitabilityofspecificroofconstruc-tionsorapplicationtechniquesarebeyondthescopeofthisspecification.1.3Thespecifiedtestsandpropertylimitsusedtocharac-terizethesheetmaterialscoveredbythisspecificationareintendedtoestablishminimumproperties.In-placeroofsystemdesigncriteriasuchasfireresistance,fieldstrength,impact/punctureresistance,materialcompatibility,upliftresistance,theneedforfieldappliedcoatings,andothers,arefactorsbeyondthescopeofthismaterialspecification.1.4ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.1.5Thefollowingprecautionarystatementpertainsonlytothetestmethodport...
