Designation:D6534−05(Reapproved2010)StandardTestMethodforDeterminingthePeakForce-to-ActuateofaMechanicalPumpDispenser1ThisstandardisissuedunderthefixeddesignationD6534;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodcoversthedeterminationofthepeakforce-to-actuate,sometimescalledforce-to-actuate(FTA),ofamechanicalpumpdispenser.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.Theinch-poundunitsgiveninparenthesesareforinformationonly.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.Specificprecau-tionarystatementsaregiveninSection5.2.ReferencedDocuments2.1ASTMStandards:2D3890TestMethodforNumberofStrokestoPrimeaMechanicalPumpDispenser3.SignificanceandUse3.1Thistestmethodcanbeusedtocomparethepeakforce-to-actuateperformanceofdifferentmechanicalpumpdispensers.3.2Thistestmethodcanbeusedtodeterminetheperceivedeaseofuseofamechanicalpumpdispenser.3.3Thistestmethodcanbeusedtodeterminethepeakforce-to-actuateofamechanicalpumpdispenser.4.Apparatus4.1MotorizedCompressionTester,orCustomForce-to-ActionMachine,withthecapabilitytoactuatethemechanicalpumpdispenserataconstantvelocityandadjustablestrokelengthswhileaccuratelymeasuringtheresultingforce(thatis,loadcell).NOTE1—SincethevelocityduringactuationwillaffecttheFTAofcertainmechanicalpumpdispenserdesigns,caremustbetakeninselectingthecorrecttypeofequipmentwiththesufficientactuationvelocity.4.2Adeviceconnectedtothecompressiontesterthatcandisplaytheresultingforceinnewtons(N)orpoundsforce(lbf)of0.1accuracy.4.3Ameanstorigidlyholdthemechanicalpumpdispenserduringtesting(thatis,glassbottleoraholdingfixture;seeFig...
