Designation:F492–95AnAmericanNationalStandardStandardSpecificationforPropyleneandPolypropylene(PP)Plastic-LinedFerrousMetalPipeandFittings1ThisstandardisissuedunderthefixeddesignationF492;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(e)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thisspecificationcoversfactory-madepropyleneandpolypropylene(PP)plastic-linedferrousmetalpipeandfit-tings,primarilyintendedforconveyingcorrosiveliquidsandgases.Requirementsformaterials,workmanship,dimensions,design,construction,workingpressuresandtemperatures,testmethods,andmarkingsareincluded.NOTE1—Inthisspecification,propyleneplasticscoverthosematerialsdefinedasbothpolypropyleneplasticsandpropyleneplasticsinDefini-tionsD883.Bothmaterialsareidentifiedas“PP”ontheproduct.NotethatthisisatvariancewithAbbreviationsD1600,wherePPistheabbreviationforpolypropylene.NOTE2—ThisspecificationdoesnotincludeproductscoatedwithPPnordoesitdefinethesuitabilityofPP-linedcomponentsinchemicalenvironments.1.2Theferrouspipingproductsshallmeettherequirementsoftherelevantspecificationslistedin1.2.1.Nominalsizesfrom1⁄2through12in.inClass125,150,and300-psiarecovered.NOTE3—ThePPsealingfacesmaypreventachievementofthefullpressureratingoftheferroushousings.Forpressurelimitations,themanufacturershouldbeconsulted.NOTE4—Flangedfittingsarenotavailableinsizes1⁄2and3⁄4.1.2.1ForFerrousPipe:TitleofSpecificationASTMDesignationPipe,Steel,BlackandHot-Dipped,Zinc-Coated,WeldedandSeamless(TypesEandS)A53SeamlessCarbonSteelPipeforHigh-TemperatureServiceA106Electric-ResistanceWeldedSteelPipeA135Electric-WeldedLow-CarbonSteelPipefortheChemicalIndustryA587SeamlessandWeldedAusteniticStainlessSteelPipeA312Electric-ResistanceWeldedCarbonandAlloySteelMechanicalTubingA5131.2.2ForFerrousFlanges:TitleofSpecificationASTMDesignationGrayIronCastingsA48Forgings,Carbon...
