Designation:D3469−97(Reapproved2007)StandardTestMethodsforMeasurementofVerticalDownwardForcestoDisengageTypeIIALug-StyleChild-ResistantClosures1ThisstandardisissuedunderthefixeddesignationD3469;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thesetestmethods2measurethedownwardforcesduringthedisengagementoflug-stylecapsfromtheirrespec-tivecontainers.1.2Thesetestmethodsmeasurethemaximumtorquede-velopedwhilethecapisfurtherdisengagedbyturningofthecontainer.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:3D3475ClassificationofChild-ResistantPackagesD3481TestMethodforManualShellingTwo-PieceChild-ResistantClosuresThatAreActivatedbyTwoSimultane-ousDissimilarMotionsE105PracticeforProbabilitySamplingofMaterialsE122PracticeforCalculatingSampleSizetoEstimate,WithSpecifiedPrecision,theAverageforaCharacteristicofaLotorProcess3.Terminology3.1Definitions:3.1.1typeIIAchild-resistantclosure—alugfinishclosurerequiringarandompushdownwhileturning.(SeeClassifica-tionD3475.)3.2DefinitionsofTermsSpecifictoThisStandard:3.2.1verticalforcetodisengagement—theamountofdown-wardforcerequiredtoreleasethelugsfromalockedposition(disengagement)sorotationalmovementcanbeachieved.4.SummaryofTestMethod4.1Theaveragedownwardforcetodisengagelugsofthecapfromtheseveralreceptaclesonthecontainersisobtained.Thestandarddeviationmaybedeterminedforagivenlotofpackages.Thesemeasurementsofforcearerecordedincludingtorquegeneratedinremovalofthecap.4.2TestMethodsAandBuseaforce-measuringdevicetodeterminethedownwardforcerequiredtodisengagethelugsonthecapfromthecorrespondingr...
