Designation:F1176–01e1AnAmericanNationalStandardStandardPracticeforDesignandInstallationofUndergroundThermoplasticIrrigationSystemsWithMaximumWorkingPressureof125psi1ThisstandardisissuedunderthefixeddesignationF1176;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(e)indicatesaneditorialchangesincethelastrevisionorreapproval.e1NOTE—KeywordsaddededitoriallyinNovember2003.1.Scope1.1Thispracticeestablishesproceduresforthedesignandinstallationofthermoplasticflexiblepipingsystems,forunder-groundirrigationsystems.Becausethereisconsiderablevari-abilityinend-userequirements,soilconditions,andthermo-plasticpipingcharacteristics,theintentofthispracticeistooutlinegeneralobjectivesandbasicsofsystemsdesign,properinstallationprocedures,andtoprovidepertinentreferences.1.2Thevaluesstatedininch-poundunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesaremathemati-calconversionstoSIunitswhichareforinformationonlyandarenotconsideredstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:D1600TerminologyforAbbreviatedTermsRelatingtoPlastics2D2241SpecificationforPoly(VinylChloride)(PVC)Pressure-RatedPipe(SDRSeries)3D2487PracticeforClassificationsofSoilsforEngineeringPurposes(UnifiedSoilClassificationSystem)4D2488PracticeforDescriptionandIdentificationofSoils(Visual-ManualProcedure)4D2657PracticeforHeat-JoiningPolyolefinPipeandFit-tings3D2749SymbolsforDimensionsofPlasticPipeFittings3F402PracticeforSafeHandlingofSolventCements,Primers,andCleanersUsedforJoiningThermoplasticPipeandFittings3F412TerminologyRelatingtoPlasticPipingSystems3F690PracticeforUndergroundInstallationofThermoplas-ticPressurePipingIrri...
