Designation:F1499−12StandardSpecificationforCoextrudedCompositeDrain,Waste,andVentPipe(DWV)1ThisstandardisissuedunderthefixeddesignationF1499;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope*1.1Thisspecificationcoverscoextrudedcompositedrain,waste,andventpipe(DWV).ThepipeisproducedinSchedule40IPSsizesbyacoextrusiondiesystem,inwhichtheconcentriclayersareformedandcombinedbeforeexitingthedie.1.1.1Coextrudedcompositedrain,waste,andventpipe,DWV,bydefinition,ispermittedtobeproducedwithtwoormorelayers.TheouterlayershallbeABS.ThemiddlelayerispermittedtobethermallyfoamedPVCorsolidPVCorablendofreworkmaterial,asspecifiedinthereworkmaterialsection.TheinnerlayerispermittedtobesolidPVCorABS,orablendofreworkmaterialasspecifiedinthereworkmaterialsection.1.1.2Thefunctionofthisspecificationistoprovidestan-dardizationofproduct,technicaldata,andserveasapurchas-ingguide.1.2DWVispermittedtobeproducedutilizingatwolayerorthreelayercoextrusiondie.1.3Materialsthatdonotmeettherequirementsofthematerialsectionareexcluded.1.4PipeproducedtothisspecificationispermittedtobejoinedusingmoldedfittingsmeetingtherequirementsofSpecificationD2661orSpecificationF628.ThefittingpatternsmustcomplywithSpecificationD3311.1.5Pipeproducedtothisspecificationispermittedtobeperforatedinaccordancewithanyspecifiedstandardorbyagreementbetweenthepurchaserandthesupplier.1.6Pipeproducedtothisspecificationispermittedtobebelledforjoiningbysolventcementingorbelledforjoiningbyanelastomericseal(gasket),inaccordancewithanyspecifiedstandardorbyagreementbetweenthepurchaserandthesupplier.1.7Recommendationsforstorage,joining,andinstallationareprovidedinAppendixX1,AppendixX2,andAppendixX3,respectively.1.8Thevaluesstatedininch-poundunitsaretoberegardedasthestandard.TheSIunitsgiveninparenthesesareforinformationonly.1.9...
