Designation:C1809−16StandardPracticeforPreparationofSpecimensandReportingofResultsforPermeanceTestingofPressureSensitiveAdhesiveSealedJointsinInsulationVaporRetarders1ThisstandardisissuedunderthefixeddesignationC1809;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thispracticeprovidesinstructionforthepreparationoftestspecimensofpressuresensitiveadhesive(psa)sealedjointsofthetypeemployedininsulationvaporretardersystems,forsubsequenttestingperTestMethodsE96/E96Mtodeterminethewatervaporpermeance(“permeance”)ofthosejoints.Itdoesnotcoverpreparationofothertypesofjoints.1.2ThispracticealsoprovidesrequirementsforthecontentofreportsissuedinconjunctionwithTestMethodsE96/E96Mtestingofthesejoints.1.3Jointsaremadewithfactorycoatedpsatapesorpsacoatedlaminatejacket(vaporretardercladding)materials.1.3.1Thetypesofmaterialsandjointstobetestedaregenerallyencounteredinmechanicalsystemsincommercialandindustrialinsulationapplications,andinHVACsystemsinsulation.1.3.2Typicalpsajointsthatareemployedinvaporretardersystemsformechanicalinsulationinclude:1.3.2.1Overlapwithdouble-sidedtape.1.3.2.2Overlapwithcoatedlaminatejacket.1.3.2.3Buttwithsingle-sidedinsulationtape.1.3.2.4Intersectionofoverlapandbuttjoint.1.4TestMethodsE96/E96Mistobefollowedforspecifictestinginstructionbeyondtheareasofguidanceprovidedherein,thatis,afterthespecimensarepreparedinthedesiredtestconfiguration.1.5Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylim...
