Designation:D2239−21AnAmericanNationalStandardStandardSpecificationforPolyethylene(PE)PlasticPipe(SIDR-PR)BasedonControlledInsideDiameter1ThisstandardisissuedunderthefixeddesignationD2239;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheU.S.DepartmentofDefense.1.Scope*1.1Thisspecificationcoverspolyethylene(PE)pipemadetostandardinsidedimensionratios(SIDR)andpressureratedforwater(seeappendix).IncludedarerequirementsforPEcompoundsandrequirementsandtestmethodsforworkmanship,dimensions,elevatedtemperaturesustainedpressure,burstpressure,andmarking.1.2Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.3Thetextofthisspecificationreferencesnotes,footnotes,andappendixeswhichprovideexplanatorymaterial.Thesenotesandfootnotesshallnotbeconsideredasrequirementsofthespecification.Notesandfootnotesintablesandfigures,andSupplementaryRequirementsarerequirementsofthespecifi-cation.1.4Thefollowingsafetyhazardscaveatpertainsonlytothetestmethodsportion,Section7,ofthisspecification:Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafety,health,andenvironmentalpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.1.5Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D618PracticeforConditioningPlasticsforTestingD638TestMethod...