Designation:E2784−10(Reapproved2015)StandardTestMethodforEvaluationoftheEffectivenessofHandwashFormulationsUsingthePaperTowel(Palmar)MethodofHandContamination1ThisstandardisissuedunderthefixeddesignationE2784;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodcoversthedeterminationoftheeffec-tivenessofantimicrobialhandwashingagentsforthereductionoftransientmicrobialflorawhenusedinahandwashingprocedure.1.2Aknowledgeofmicrobiologicaltechniquesisrequiredfortheseprocedures.1.3Thistestmethodmaybeusedtoevaluatetopicalantimicrobialhandwashformulations.1.4Performanceofthisprocedurerequirestheknowledgeofregulationspertainingtotheprotectionofhumansubjects.21.5Inthistestmethod,SIunitsareusedforallapplications,exceptfordistanceinwhichcaseinchesareusedandSIunitsfollowinparentheses.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.Formorespecificprecautionarystatementssee8.5.2.ReferencedDocuments2.1ASTMStandards:3E1054TestMethodsforEvaluationofInactivatorsofAnti-microbialAgentsE1174TestMethodforEvaluationoftheEffectivenessofHealthCarePersonnelHandwashFormulations2.2OtherStandards:AATCCTestMethod147AntibacterialAssessmentofTex-tileMaterials:ParallelStreakMethod43.Terminology3.1Definitions:3.1.1activeingredient,n—asubstanceaddedtoaformula-tionspecificallyfortheinhibitionorinactivationofmicroor-ganisms.3.1.2cleansingwash,n—aprocedureintendedtoremovesoilorresidue.Thismayalsobereferredtoasacosmeticwash.3.1.3healthcarepersonnelhandwash,n—acleanserorwaterlessagentintendedtoreducetransientbacteriaonthehands.3.1.4neutralization,n—theprocessforinactivatingorquenchingt...