Designation:D7241−22StandardTestMethodforPileThicknessofFinishedMultilevelPileYarnFloorCovering1ThisstandardisissuedunderthefixeddesignationD7241;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodcoversthedeterminationofpilethicknessoffinishedmultilevelpileyarnfloorcoveringusingathicknessmeasuringinstrumenthavingastationarysurface(platen),acircularpressurefootunderspecifiedforce,andcapableofbeingmovedverticallyabovetheplaten.1.2Thistestmethodisapplicableonlytofinishedmultilevellooppileconstructions.NOTE1—DeterminationofpilethicknessofmultilevelpileyarnfloorcoveringswaspreviouslycontainedwithinTestMethodD418.Foruserconvenience,SubcommitteeD13.21subdividedTestMethodD418intoseparatestandardsofwhichthistestmethodisone.1.3Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.1.5Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D123TerminologyRelatingtoTextilesD1776PracticeforConditioningandTestingTextilesD5684TerminologyRelatingtoPileFloorCoveringsD5823TestMethodforTuftHeightofPileFloorCoveringsE122PracticeforCalculatingSampleSizetoEstimate,WithSpecifiedPrecision,theAverageforaCharacteristicofaLot...
