Designation:D3678−14AnAmericanNationalStandardStandardSpecificationforRigidPoly(VinylChloride)(PVC)Interior-ProfileExtrusions1ThisstandardisissuedunderthefixeddesignationD3678;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope*1.1Thisspecificationestablishesrequirementsforthema-terialproperties,includingdimensionalstabilityandextrusionquality,ofrigid,poly(vinylchloride)(PVC)interior-profileextrusions.Methodsforidentifyinginterior-profileextrusionsthatcomplywiththerequirementsofthisspecificationareprovided.1.2UseofrigidPVCrecycledplasticispermittedinaccordancewiththerequirementsofSections6and7.1.3RigidPVCcompoundsforinteriorbuildingproductapplicationsarecoveredinSpecificationD1784.1.4RigidPVCexteriorprofileextrusionsforassembledwindowsanddoorsarecoveredinSpecificationD4726.1.5Thetextofthisstandardreferencesnotesandfootnoteswhichprovideexplanatorymaterial.Thesenotesandfootnotes(excludingthoseinTablesandFigures)shallnotbeconsideredasrequirementsofthisstandard.1.6ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesaregivenforinformationonly.NOTE1—Informationwithregardtoapplicationshouldbeobtainedfromthemanufacturersoftheprofiles.NOTE2—ThereisnoknownISOequivalenttothisstandard.1.7Thefollowingprecautionarycaveatpertainsonlytothetestmethodportion,Section8,ofthisspecification:Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimita-tionspriortouse.2.ReferencedDocuments2.1ASTMStandards:2D618PracticeforConditioningPlasticsforTestingD696TestMethodforCoefficientofLinearThermalExpan-sionofPlasticsBetween−30°Cand30°CwithaVitreousSilicaDilatometerD883TerminologyRelatingtoP...
