Designation:B745/B745M−15StandardSpecificationforCorrugatedAluminumPipeforSewersandDrains1ThisstandardisissuedunderthefixeddesignationB745/B745M;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thisspecificationcoverscorrugatedaluminumpipeintendedforuseforstormwaterdrainage,underdrains,theconstructionofculverts,andsimilaruses.Pipecoveredbythisspecificationisnotnormallyusedfortheconveyanceofsanitaryorindustrialwastes.1.2Thisspecificationdoesnotincluderequirementsforbedding,backfill,ortherelationshipbetweenearth-coverloadandsheetthicknessofthepipe.Experiencehasshownthatthesuccessfulperformanceofthisproductdependsupontheproperselectionofsheetthickness,typeofbeddingandbackfill,controlledmanufactureintheplant,andcareintheinstallation.Thepurchasermustcorrelatetheabovefactorsandalsothecorrosionandabrasionrequirementsofthefieldinstallationwiththesheetthickness.Thestructuraldesignofcorrugatedaluminumpipeandtheproperinstallationproce-duresaregiveninPracticesB790/B790MandB788/B788M,respectively.Aprocedureforusinglife-cyclecostanalysistechniquestoevaluatealternativedrainagesystemdesignsusingcorrugatedmetalpipeisgiveninPracticeA930.1.3ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2A153/A153MSpecificationforZincCoating(Hot-Dip)onIronandSteelHardwareA307SpecificationforCarbo...
