Designation:F2261−06(Reapproved2011)StandardTestMethodforPressureRatingPoly(VinylChloride)(PVC)PlasticPipeFittings,Schedule40and80Socket-Type.1ThisstandardisissuedunderthefixeddesignationF2261;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1ThistestmethodcoversaprocedureforestablishingPressureRatingforPVCschedule40and80socket-typefittingsbyevaluatingfittingfailuretestdataderivedbytestingwater-filledassembliesofpipeandfittings.1.2Unlessthedataapproximatesastraightline,whencalculatedusinglog-logcoordinates,itisnotpossibletoassignapressureratingtothatproductorsampleofproduct.Datathatexhibithighscatter,oradownwardcurve,duetolowlongtermdata,willgivelowextrapolatedvaluesthataremoreconser-vativewhencalculatedusinglog-logco-ordinates.Inaddition,thisdownwardcurvewillshowashigherscatter,andwherethelowerconfidencelevellimitsarenotmetthedatashallbeclassifiedasunsuitable.(SeeNote1)NOTE1—ThistestmethodissimilartothatusedinTestMethodD2837,whichhasbeenusedforabout30yearstoestablishtheHDSofplasticpipematerialsandisthebasisforallpressureratingsassignedtoplasticpipes.1.3Theproductscoveredbythistestmethodareschedule40or80moldedPVCfittingsthatconformtoSpecificationsD2466orD2467.1.4Thepressureratingsdevelopedusingthistestmethodappliesonlytofittingsidenticaltotheonesthatweretested.Somevariablesthatwillaffectthepressureratingare–pipesize,pattern,molddesign,material,andmoldingconditions.1.5Thevaluesininch-poundunitsaretoberegardedasthestandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.6ThetestingprocedureusedtoobtainthefittingfailuredatashallbeasdescribedinthosesectionsofTestMethodD1598,thatarereferencedinSection6ofthistestmethod.1.7Theproductscoveredbythistestmethodareintendedforuseinthe...
