Designation:E1207−14StandardGuideforSensoryEvaluationofAxillaryDeodorancy1ThisstandardisissuedunderthefixeddesignationE1207;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thisguideprovidesprocedureswhichmaybeusedinthedesignandanalysisofstudiestoquantitativelyassesstheintensityofhumanaxillaryodorforthepurposeofsubstanti-atingdeodorantefficacyofpersonalcareproducts.1.2Thisguideincludesprotocolsfortheselectionandtrainingofassessors,selectionofsubjects,experimentaldesign,andstatisticalanalyses.Thispracticeislimitedtoassessmentofaxillaryodorbytrainedassessors.Self-evaluationprotocolsarevalidforselectedsensorytasksbutmaybelesssensitive.1.3Withrespecttothesourceofaxillaryodor,threegroupsofsecretoryglandsarepresentintheaxillaewhichparticipatetoagreaterorlesserextentinitsproduction—eccrine,apocrine,andsebaceous.Axillaryodorhasbeenprimarilyascribedtotheapocrineglandsecretion(1).2Bodyodorintensityhasbeencorrelatedwiththevolumeofthesecretoryportionoftheapocrinegland(2)andthedensityoftheglands.1.3.1Apocrineglandsarefoundprimarilyintheaxillaryvaultinconjunctionwithaxillaryhairs(3).Pureapocrinesweatissterileandodorlessandaxillaryodorresultsfromdegradationofapocrinesweatbyresidentskinbacteria(4).Highbacterialpopulationsarefoundinmoistregionsofthebody,especiallyintheaxillae,providingtheappropriateenvironmentforgrowth(5).1.3.2Eccrineglandskeeptheaxillaemoistthroughther-mallyandemotionallyinducedsecretions(6).1.3.3Thesebaceousglandsexcretehighermolecularweightlipidmaterialswhichabsorbandretainthevolatilematerialsresultingfrombacterialaction(7).Theaerobicdiphtheroidsareabletoproducethetypicalacridaxillaryodorandthemicrococcaceaeproduceanisovalericacid-likeodorwhenincubatedwithapocrinesweat(8).Therefore,themostunde-sirablecomponentofaxillaryodoriscausedbydegradation...
