Designation:D1785−15StandardSpecificationforPoly(VinylChloride)(PVC)PlasticPipe,Schedules40,80,and1201ThisstandardisissuedunderthefixeddesignationD1785;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheU.S.DepartmentofDefense.1.Scope*1.1Thisspecificationcoverspoly(vinylchloride)(PVC)pipemadeinSchedule40,80,and120sizesandpressure-ratedforwater(seeAppendixX1).Includedarecriteriaforclassi-fyingPVCplasticpipematerialsandPVCplasticpipe,asystemofnomenclatureforPVCplasticpipe,andrequirementsandtestmethodsformaterials,workmanship,dimensions,sustainedpressure,burstpressure,flattening,andextrusionquality.Methodsofmarkingarealsogiven.1.2Theproductscoveredbythisspecificationareintendedforusewiththedistributionofpressurizedliquidsonly,whicharechemicallycompatiblewiththepipingmaterials.Duetoinherenthazardsassociatedwithtestingcomponentsandsys-temswithcompressedairorothercompressedgasessomemanufacturersdonotallowpneumatictestingoftheirproducts.Consultwithspecificproduct/componentmanufacturersfortheirspecifictestingprocedurespriortopneumatictesting.NOTE1—Pressurized(compressed)airorothercompressedgasescontainlargeamountsofstoredenergywhichpresentserioussafteyhazardsshouldasystemfailforanyreason.NOTE2—Thisstandardspecifiesdimensional,performanceandtestrequirementsforplumbingandfluidhandlingapplicationsonly.Itdoesnotincludeprovisionsfortheuseoftheseproductsforventingofcombustiongases.UL1738isastandardthatdoesincludespecifictestingandmarkingrequirementsforfluegasventingproducts,includingPVC.1.3Thetextofthisspecificationreferencesnotes,footnotes,andappendixeswhichprovideexplanatorymaterial.Thesenotesandfootnotes(excludingthoseintablesandfigures)shallnotbeconsideredasrequirementsofthespecification.1.4Thevaluesstatedininch-pounduni...
