Designation:F1326−02(Reapproved2016)AnAmericanNationalStandardStandardTestMethodforMeasuringMaximumDryVolumeofUtilityVacuumCleaners1ThisstandardisissuedunderthefixeddesignationF1326;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodisapplicabletoanyvacuumcleanerthatisclassifiedasautilityvac.1.2Thevaluesstatedininch-poundunitsaretoberegardedasstandard.Thevaluesinparenthesesareforinformationonly.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2E177PracticeforUseoftheTermsPrecisionandBiasinASTMTestMethodsE691PracticeforConductinganInterlaboratoryStudytoDeterminethePrecisionofaTestMethod3.SignificanceandUse3.1Thistestmethoddescribesaproceduretodeterminethemaximumfunctionaldryvolumethattheutilityvaciscapableofcollecting.4.Apparatus4.1Temperatureandhumidityindicators,toprovidetem-peraturemeasurementsaccuratetowithin61°F(61⁄2°C)andhumiditymeasurementsaccuratetowithin62%relativehumidity.4.2WeighingScale,thescaleshallbeaccurateto4oz(114g)andhaveaweighingcapacityofatleast120lb(54.4kg).5.Materials5.1Water.6.Sampling6.1Aminimumofthreeunitsofthesamemodelvacuumcleanerselectedatrandominaccordancewithgoodstatisticalpracticeshallconstitutethepopulationsample.6.1.1Todeterminethebestestimateofmaximumdryvolumeforthepopulationofthevacuumcleanermodelbeingtested,thearithmeticmeanofthemaximumdryvolumeofthesamplefromthepopulationshallbeestablishedbytestingittoa90%confidencelevelwithin65%ofthemeanvalueofthemaximumdryvolume.6.1.2AnnexA1providesaproceduralexamplefordeter-miningthe90%confidencelevelandwhenthesamplesizeshallbeincrease...
