Designation:E1517−13StandardTestMethodforDeterminingtheEffectivenessofLiquid,Gel,Cream,orShampooInsecticidesAgainstHumanLouseOva1ThisstandardisissuedunderthefixeddesignationE1517;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethoddeterminestheeffectivenessofovici-dalmaterialsinliquid,gel,cream,orshampooformagainsttheova(thatis,eggsornits)ofthehumanlouse,Pediculushumanus.1.2Thistestmethodisintendedforusebythosewishingtodevelopefficacydataorcompareovicidalformulationsforhumanlouseovacontrol.1.3Thistestmethodconsistsoffivereplicatesforastatis-ticalcomparisonofformulations.1.4ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard,exceptfortemperaturemeasurementsinSection5.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.Terminology2.1DefinitionsofTermsSpecifictoThisStandard:2.1.1hatched—thoseeggs(nits)fromwhichthenymphhasemergedcompletely;anempty,cleareggcasewiththeoperculumclearlyopen.2.1.2unhatched—thoseeggsthatareopaque;theoperculumisclosedorthenymphispartlyemerged.3.SummaryofTestMethod3.1Fivereplicatesof30eggsareimmersedinatestcompoundforasetperiodoftime,washed,rinsed,blotteddry,andincubated.3.2Fivecontrolreplicatesareattachedtohumanhairandprocessedasthetreatmentreplicates,butwithimmersioninwater.3.3Percenteggmortality,correctedbyAbbott’sFormula,isdetermined.4.SignificanceandUse4.1Thistestmethodisastandardizedtestforthegatheringofefficacydataforhumanlouseovicides.4.2Datacollectioninthismannerissuitableforproductdevelopmentandcomparison,andforreviewbyregulatoryagencies,tosupporttheregistrationofhum...
