Designation:D5252−20StandardPracticefortheOperationoftheHexapodTumbleDrumTester1ThisstandardisissuedunderthefixeddesignationD5252;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thispracticedescribestheequipmentandoperationofthehexapodtumbledrumtesterfortestingpilefloorcoveringtoproducechangesinappearanceandcolorduetochangesinsurfacestructurebymechanicalactiontester.1.2Thispracticeisapplicableforuseintestingunusedpilefloorcoveringofalltypes.Itisnotapplicableforuseintestingusedpileyarnfloorcoverings.1.3Thispracticemaybeusedbymutualagreementbetweenthepurchaserandsuppliertosetpurchasingspecifications.1.4Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.1.6Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D123TerminologyRelatingtoTextilesD1776PracticeforConditioningandTestingTextilesD5684TerminologyRelatingtoPileFloorCoverings3.Terminology3.1ForallterminologyrelatedtoPileFloorCoverings,D13.21,seeTerminologyD5684.3.1.1Thefollowingtermsarerelevanttothisstandard:carpet,finished,finishedpileyarnfloorcovering,floorcovering,lengthwisedirection,pile,pilelay,pileyarnfloorcovering,pitch,practice,primarybacking,sec...
