Designation:D3617/D3617M−17(Reapproved2022)StandardPracticeforSamplingandAnalysisofBuilt-UpRoofSystemsDuringApplication1ThisstandardisissuedunderthefixeddesignationD3617/D3617M;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheU.S.DepartmentofDefense.1.Scope1.1Thispracticeisaguideforremovingspecimensforbuilt-upbituminousroofsystemsduringapplication,butbeforetheapplicationoffloodcoatingandtopsurfacing,fordeter-miningtheapproximatequantitiesofthecomponentsandthepossiblepresenceofmoisture,ordryspotsbetweenplies,inthefield.Componentsmayconsistof:1.1.1Insulation,whenpartoftheroofmembranesystem,1.1.2Pliesofroofingfelt,1.1.3Interplylayersofbituminousmaterial,and1.1.4Topcoating,ifpresent,beforeanysurfacingaggregatehasbeenapplied.1.2Thispracticeisapplicabletoboth914mm[36in.]and1000mm[393⁄8in.]widefeltrolls.1.3ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnonconformancewiththestandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.1.5Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D226/D226MSpecificationforAsphalt-SaturatedOrganicFeltUsedinRoofingandWaterproofingD...