Designation:F1948−12StandardSpecificationforMetallicMechanicalFittingsforUseonOutsideDiameterControlledThermoplasticGasDistributionPipeandTubing1ThisstandardisissuedunderthefixeddesignationF1948;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope*1.1ThisspecificationcoversrequirementsandtestmethodsforthequalificationofmetallicmechanicalfittingsforusewithoutsidediametercontrolledthermoplasticgasdistributionpipeandtubingasspecifiedinSpecificationD2513.1.2Thetestmethodsdescribedarenotintendedtoberoutinequalitycontroltests.1.3Thisspecificationcoversthetypesofmechanicalfittingsdescribedin3.3.1.4Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.5Thefollowingsafetyhazardscaveatpertainsonlytothetestmethodportion,Section7,ofthisspecification.Thisstandardmayinvolvehazardousmaterial,operationsandequipment.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.1.6Thetextofthisstandardreferencesnotesandfootnoteswhichprovideexplanatorymaterial.Thesenotesandfootnotes(excludingthoseintablesandfigures),shallnotbeconsideredasrequirementsofthestandard.2.ReferencedDocuments2.1ASTMStandards:2D638TestMethodforTensilePropertiesofPlasticsD1598TestMethodforTime-to-FailureofPlasticPipeUnderConstantInternalPressureD1600TerminologyforAbbreviatedTermsRelatingtoPlas-ticsD2513SpecificationforThermoplasticGasPressurePipe,Tubing,andFittingsF412TerminologyRelatingtoPlasticPipingSystemsF1588TestMethodforConstantTensileLoadJointTest(CTLJT)F2897SpecificationforTrackingandTraceab...
