Designation:D6571−22StandardTestMethodforDeterminationofCompressionResistanceandRecoveryPropertiesofHighloftNonwovenFabricUsingStaticForceLoading1ThisstandardisissuedunderthefixeddesignationD6571;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodcoversthemeasurementofcompres-sionresistanceandrecoverypropertiesofanytypeofhighloftnonwovenfabricusingasimplisticandeconomicalappliedstaticweightloadingtechnique.1.2Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.1.3ThevaluesstatedinSIunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesafterSIunitsareprovidedforinformationonlyandarenotconsideredstandard.1.4Thistestmethodofferstwooptionsforthemeasurementofcompressionresistanceandrecoveryproperties.Option1containsfewerstepsandis,therefore,simpler.Option2makesmoremeasurementsandprovidesmoredetailsaboutthebehaviorofafabricunderthesetestconditions.1.5Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D123TerminologyRelatingtoTextilesD2904PracticeforInterlaboratoryTestingofaTextileTestMethodthatProducesNormallyDistributedData(With-drawn2008)33.Terminology3.1Definitions:3.1.1appliedstaticforce,n—intesting,theapplicationofafixedforcebyactionofgravityonafixedmass.3.1.2batting,n—atextilefillingmaterialconsistingofacontinuousweboffibersformedbycarding,garnetting,airlaying,orother...
