Designation:D2737−22AnAmericanNationalStandardStandardSpecificationforPolyethylene(PE)PlasticTubing1ThisstandardisissuedunderthefixeddesignationD2737;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheU.S.DepartmentofDefense.1.Scope*1.1Thisspecificationcoverspolyethylene(PE)plastictub-inginoutsidediametersandSDR’sthatarepressureratedforwater.IncludedarerequirementsforPEcompounds,andrequirementsandtestmethodsforPEplastictubingworkmanship,dimensions,elevatedtemperaturesustainedpressure,burstpressureandmarking.NOTE1—RefertospecificationAWWAC901andPPITechnicalNote49(TN-49)forfurtherinformationonpipesuitabilityforpotablewaterenduseapplications.OxidativeResistanceClassification(CC#rating)informationisavailablefromNSFInternational.1.2Thetextofthisspecificationreferencesnotes,footnotes,andappendixeswhichprovideexplanatorymaterial.Thesenotesandfootnotesshallnotbeconsideredasrequirementsofthespecification.Notesandfootnotesintablesandfigures,andSupplementaryRequirementsarerequirementsofthespecifi-cation.1.3Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.NOTE2—JoiningPEplastictubingwithfittingsthatrequireflaringthetubingisnotrecommendedbecausePracticeD3140,thetechniqueusedtomaketheflarehasbeenwithdrawn(discontinued).1.4Thefollowingsafetyhazardscaveatpertainsonlytothetestmethodsportion,Section7,ofthisspecification:Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafety,health,andenvironmentalpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.1.5Thisinternationalstandardwas...
