Designation:F2929−13StandardSpecificationforCrosslinkedPolyethylene(PEX)Tubingof0.070in.WallandFittingsforRadiantHeatingSystemsupto75psig1ThisstandardisissuedunderthefixeddesignationF2929;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thisspecificationcovers0.070in.wallthicknesscross-linkedpolyethylene(PEX)tubingthatisoutsidediametercontrolled,andintendedfornon-potableradiantheatingappli-cationsforpressuresupto75psiginsizes5⁄8NTS(nominaltubingsize)and7⁄8NTS.Thisspecificationalsoincludesfittingsthatarespecificallydesignedforthis0.070in.-wallPEXtubing.Only75-psigreliefvalvesshallbeusedwiththistubing.Includedinthisspecificationarerequirementsandtestmethodsformaterial,workmanship,dimensions,burstpressure,hydrostaticsustainedpressure,environmentalstresscracking,stabilizerfunctionality,bent-tubehydrostaticpressure,excessivetemperatureanddegreeofcrosslinking.Requirementsfortubingmarkingsarealsogiven.Thistubingdoesnothaveanoxygendiffusionbarrierlayerandshallnotbeusedinsystemsthatrequireabarrierlayer.Thistubingisnotintendedforfieldbendingattemperaturesabove120ºF(49ºC).1.2Thetextofthisspecificationreferencesnotes,footnotes,andappendixes,whichprovideexplanatorymaterial.Thesenotesandfootnotes(excludingthoseintablesandfigures)shallnotbeconsideredasrequirementsofthespecification.1.3Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.4Thefollowingsafetyhazardscaveatpertainsonlytothetestmethodsportion,Section7,ofthisspecification:Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicability...
