Designation:D3840−19StandardSpecificationfor“Fiberglass”(Glass-Fiber-ReinforcedThermosetting-Resin)PipeFittingsforNonpressureApplications1ThisstandardisissuedunderthefixeddesignationD3840;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope*1.1Thisspecificationcoversfiberglasspipefittingsin-tendedforuseingravityflowsystemsforconveyingsanitarysewage,stormwater,andthoseindustrialwastesforwhichthefittingsaredeterminedtobesuitable.Elbows,tees,laterals,crosses,reducers,andadaptersareincluded.Bothglass-fiber-reinforcedthermosetting-resinpipe(RTRP)andglass-fiber-reinforcedpolymermortarpipe(RPMP)arefiberglasspipes.NOTE1—Forthepurposesofthisstandard,polymerdoesnotincludenaturalpolymers.1.2Thisspecificationisintendedtocoveronlydimensions,materialproperties,andworkmanshipratherthanthestructuraldesignofthefittings.Thestructuraldesignofthefittingsshallbeasagreeduponbetweenpurchaserandsupplier,andneedstotakeintoconsiderationtheanticipatedconditionsofinstal-lationandservice.1.3Thisspecificationcoversonlyfittingsfabricatedfromcutsectionsofpipe,orfromacombinationofpipesectionsandcontactmolded(handlayup),ormachinefabricatedcompo-nents.1.4Thevaluesstatedininch-poundunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareprovidedforinformationpurposesonly.1.5Thefollowingsafetyhazardscaveatpertainsonlytothetestmethodportion,Section11,ofthisspecification.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafety,health,andenvironmentalpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.NOTE2—ThereisnoknownISOequivalenttothisstandard.1.6Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestabli...
