Designation:F1935−01(Reapproved2018)AnAmericanNationalStandardStandardTestMethodforMeasuringtheHeadroomofaBackpackingorMountaineeringTent1ThisstandardisissuedunderthefixeddesignationF1935;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodcoverstentsforuseinthesportsofbackpackingandmountaineering.Itestablishesrequirementsforthetestingandmarkingoftents.1.2Thistestmethodmaycontaintestmethodsthatdonotentirelysimulatereallifesituations.Thistestmethodisdesignedtogivereproducibleresultsinalaboratoryandtherebyameansforproductcomparison.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.1.4Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.Terminology2.1DefinitionsofTermsSpecifictoThisStandard:2.1.1tent—aportablesheltermadeprimarilyoffabricweighinglessthan3oz/yd2,designedtobecarriedbytheoccupantsforwhilebackpackingormountaineering.2.1.2usableheadroom—theinteriorverticalmeasurementofatentmeasuredfromthetentfloortothehighpointontheceilingusingasimplefixturethatsimulatesanaverageuser’shead.3.SummaryofTestMethod3.1Thetentshouldbepitchedonaflatsurfaceinaccor-dancewiththecompany’ssuppliedpitchinginstructions.3.2Thefixtureshallbeplacedinsidethetent.Theballisraiseduntilitcomesintocontactwiththeceiling,wall,poles,oranyotherobstructionsinsidethetent.3.3Thetapemeasurewillnowbehangingdirectlybelowtheball.Theheadroommeasur...
