Designation:D5806−95(Reapproved2017)StandardTestMethodforDisinfectantQuaternaryAmmoniumSaltsbyPotentiometricTitration1ThisstandardisissuedunderthefixeddesignationD5806;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodcoversapotentiometrictitrationpro-cedurefordeterminingactivematterindisinfectantquaternaryammoniumsalts.Thistestmethodisintendedfortheanalysisofquaternaryammoniumsaltsusedasdisinfectants,andonlyappliestothefollowingcommonlyusedquaternaryammoniumsalts:n-alkyldimethylbenzylammoniumchloride(seeFig.1),cetyltrimethylammoniumchloride,andablendofn-octyldecyldimethylammoniumchloride,di-n-octyldimethylammoniumchloride,anddi-n-decyldimethylammoniumchloride(seeFig.2).Also,thistestmethodcanbeappliedtotheanalysisofdisinfectanttypeproductswheretheformulaingredientsareknownandthequaternaryammoniumsaltisoneoftheabove.Interferencessuchasaminesoxidesandbetainespresentindisinfectantformulationswerenottested.1.2ThisdisinfectantquaternaryammoniumsaltconformstothestructuresinFig.1andFig.2.1.3ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.Forspecificprecautionaryinformation,seeSection8.2.ReferencedDocuments2.1ASTMStandards:2D459TerminologyRelatingtoSoapsandOtherDetergentsD1193SpecificationforReagentWaterD1681TestMethodforSyntheticAnionicActiveIngredientinDetergentsbyCationicTitrationProcedureD3049TestMethodforSyntheticAnionicIngredientbyCationicTitrationE180PracticeforDeterminingthePrecisionofASTMMethodsforAnalysisandTestingofIndustrialandSpe-cialtyChemi...
