Designation:D2829/D2829M−07(Reapproved2019)´1StandardPracticeforSamplingandAnalysisofExistingBuilt-UpRoofSystems1ThisstandardisissuedunderthefixeddesignationD2829/D2829M;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ε1NOTE—UnitsinformationwaseditoriallyrevisedinJanuary2019.1.Scope1.1Thispracticeisaguideforremovingtestspecimensfromexistingbuilt-uproofingsystemsinthefieldandfordeterminingtheapproximatequantitiesofthecomponentsofthatspecimen(Note1).Componentsdeterminedmaybe:1.1.1Insulationcomponentswhentheyarepartoftheroofmembranesystem,1.1.2Pliesofroofingfelt,1.1.3Interplylayersofbituminousmaterial,1.1.4Topcoating,and1.1.5Surfacing.NOTE1—Thisprocedureisfortheinvestigationofexistingroofsandisnotintendedfornewconstructioninspection.1.2Thispracticeisapplicabletoboth914-mm[36-in.]and1000-mm[393⁄8-in.]widefeltrolls.1.3ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemarenotnecessarilyexactequivalents;therefore,toensureconformancewiththestandard,eachsystemshallbeusedindependentlyoftheother,andvaluesfromthetwosystemsshallnotbecombined.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserthisstandardtoestablishappropriatesafety,health,andenvironmentalpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Forspecificprecautionaryinformation,see6.3.2.1.1.5Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D226/D226MSpecificationforAsphalt-SaturatedOrganicFelt...
