Designation:D418–93StandardTestMethodsforTestingPileYarnFloorCoveringConstruction1ThisstandardisissuedunderthefixeddesignationD418;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheDepartmentofDefense.´1NOTE—ThisstandardwascorrectededitoriallyinJune1993.The1992editionwasincorrect.Thecurrenttestmethodscontainedinthedocumentwilleventuallybeballotedasindividualstandards.1.Scope1.1Thesetestmethodscovertheconstructiontestingofmachine-madewoven,knitted,andtuftedpileyarnfloorcoveringbothbeforeandafteranadhesivebackcoating,whichbondsthepileyarntothebackingfabric,hasbeenapplied.1.2Thisstandardincludesthefollowingtestmethods:SectionComponentMasses2perUnitArea8NumberofBindingSitesperUnitLengthorWidthofFloorCovering16NumberofBindingSitesperUnitLengthorWidthofPileFloorCov-ering21PileThickness—LevelPile10PileThickness—MultilevelPile11PileYarnLengthperUnitLengthofFloorCovering14PileYarnLengthperUnitLengthofFloorCovering20PileYarnMassperUnitArea9TotalMassperUnitArea7TuftandYarnLengthofUncoatedFloorCovering18TuftLength12TuftLength19TuftLengthforLevelLoopPileFloorCovering15TuftHeight131.2.1SpecimenpreparationprocedurescommontoSections7-11arepresentedinAnnexA1,PreparingSpecimensofMeasuredArea.AnnexA2andAnnexA3giveexamplesoftypicalcalculationsforSections9-11.1.3Thevaluesstatedininch-poundunitsaretoberegardedasthestandardforallmeasurementsexceptmass.TheSI(metric)valuesforallmeasurementsexceptmassareprovidedforinformationpurposesonly.1.4Thisstandardmayinvolvetheuseofhazardousmate-rials,operationsandequipment.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetypracticesandtodeterminetheapplicabilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:D123TerminologyRelatingtoTextiles3D861Prac...
