Designation:F2928−18StandardPracticeforSpecimensandTestingConditionsforTestingPolyethylene(PE)PipeButtFusionsUsingTensileandHydrostaticTestMethods1ThisstandardisissuedunderthefixeddesignationF2928;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope*1.1Thispracticeprovidesstandardizedsamplebuttfusionpreparation,conditioning,andtestingconditionsfortensiontestingofspecimenspreparedfromsamplebuttfusionjointsorhydrostatictestsofsamplebuttfusionjointsinaccordancewith:1.1.1TestMethodD638,tensiontesting;1.1.1.1ThepreparationoruseoftensilespecimensotherthanTestMethodD638TypeIthroughTypeVisbeyondthescopeofthispractice.1.1.2TestMethodD1598,constant(sustained)hydraulicpressuretesting;1.1.3TestMethodD1599,short-termhydraulicpressuretesting.1.1.4Itisnotwithinthescopeofthispracticetoincludeplasticmaterialsotherthanpolyethyleneorothertestsforbuttfusions.Theexclusionofotherplasticmaterialsandothertestsdoesnotimplythatotherplasticmaterialsaresuitableorunsuitableforbuttfusion,orthatthetestscitedhereinareadequateorinadequateforqualitativecharacterizationandforresearchanddevelopmentofbuttfusionjoints,orthatothertestsdonothavelesser,equal,orgreaterutilityforsuchpurpose.1.1.5Theevaluationoftestresultsandthedeterminationoftestresultevaluationcriteriaarenotwithinthescopeofthispractice.Thispracticeislimitedtostandardizedbuttfusiontestspecimensandtestingconditionsforthecomparisonoftestdatafrommultipleparties.1.1.6Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.1.7Inthisstandard,textinparentheses,notesinthebodyofthestandardandappendicesareinformationalandnon-mandatory.Fortablesinthebodyofthestandard,tablenotesaremandatory.1.2Thisstandarddoesnotpurp...