Designation:F2531−13AnAmericanNationalStandardStandardTestMethodforLoadCapacityofTreestandSeats1ThisstandardisissuedunderthefixeddesignationF2531;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodcoversthedeterminationofthestaticloadcapacityoftreestandseatsintermsofafactorofsafetyrelativetothemanufacturersratedcapacity.1.2Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesandtodeterminetheapplicabilityofregulatorylimitationspriortouse.2.Terminology2.1Definitions:2.1.1backbarorV-bar,n—adjustablecomponentofaclimbingtreestandorhandclimberthatengagesthetreetoprovidesupport.2.1.2climbingstick,n—(1)adevicetoassistclimbingatreeprimarilytoafixedpositiontreestand.(2)astructurethatissecuredtothetreeandallowstheusertosupporthisweightandclimbtothedesiredheightonthetree.2.1.3climbingtreestand,n—treestandthatprovidesboththemeanstoascendthetreeandallowstheusertoremainatadesiredelevation.2.1.4handclimberorclimbingaid,n—(1)adevicetoassistclimbingwithaclimbingtreestand.(2)astructurethatallowstheusertosupporthisweightwhenliftingaclimbingtreestandwithhislegs.2.1.5laddertreestand,n—treestandthatissecuredtothetreeattheelevationwheretheplatformislocated.2.1.5.1Discussion—Theladdertreestandmaybesecuredtothetreeatotherlocationsandhasstepsthatareusedtoreachtheplatformorhuntingposition.2.1.6non-climbing,fixedpositionorhang-ontreestand,n—treestandthatissecuredtothetreeattheelevationwhereitisused.2.1.6.1Discussion—Theuserusuallyascendsthetreebysomemeans...