Designation:C828−11(Reapproved2016)StandardTestMethodforLow-PressureAirTestofVitrifiedClayPipeLines1ThisstandardisissuedunderthefixeddesignationC828;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheU.S.DepartmentofDefense.1.Scope1.1Thistestmethoddefinesproceduresfortestingvitrifiedclaypipelines,usinglow-pressureair,todemonstratetheintegrityoftheinstalledline.RefertoPracticeC12.1.2Thistestmethodshallbeperformedonlinesafterconnectionlaterals,ifany,havebeenpluggedandbracedadequatelytowithstandthetestpressure,andafterthetrencheshavebeenbackfilledforasufficienttimetogenerateasignificantportionoftheultimatetrenchloadonthepipeline.Thetimebetweencompletionofthebackfilloperationandlow-pressureairtestingshallbedeterminedbytheapprovingauthority.1.3Thistestmethodmayalsobeusedasapreliminarytest,whichenablestheinstallertodemonstratetheconditionofthelinepriortobackfillandfurtherconstructionactivities.1.4Thistestmethodissuitablefortestinggravity-flowsewerpipeconstructedofvitrifiedclayorcombinationsofclayandotherpipematerials.1.5TerminologyC896istobeusedforclarificationofterminologyinthistestmethod.1.6Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.7Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2C12PracticeforInstallingVitrifiedClayPipeLinesC1091TestMethodforHydrostaticInfiltrationTestingofVitrifiedClayPipeLinesC896TerminologyRelatingtoClayProducts3.SummaryofTestMethod...
