Designation:D6116−18StandardTestMethodforBlocking1ThisstandardisissuedunderthefixeddesignationD6116;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheU.S.DepartmentofDefense.1.Scope1.1Thistestmethodcoversthedeterminationoftheresis-tanceofleathertoblockingunderspecificconditionsoftemperature,humidity,andpressure.Thistestmethoddoesnotapplytowetblue.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.1.4Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1AATCCStandard:2AATCCTM15ColorfastnesstoPerspiration3.Apparatus3.1ForcedCirculatingHotAirOven,capableofmaintain-ing8063°C.3.2AmericanMedicalMuseumJar(withLid),havinginnerdimensionsof16cmhigh,10cmlong,and8cmwide.Thereshallbethreeindentationsatthetopofeach8cmside.Otherglasscontainerssimilarinsizemaybeused,providedtheygivethesameresult.3.3PetriDish,100by15mm,withcover.3.4Weight,2000g.3.5Perspirometer,consistingofanumberofglassplateswhichcanbekeptinsuitablecompressionloadingframe.Anyotherapparatusmaybeused,provideditgivesthesameresults;forexample,theAATCCperspirometertesterasdescribedinAATCCTM15,whichiscommerciallyavailable.4.TestSpecimen4.1Testfourspecimenspersamplewithdimensionsof2.5by10cm.Twosamplesshallbeparallel...