1、Designation: F 2120 06An American National StandardStandard Practice forTesting Treestand Load Capacity1This standard is issued under the fixed designation F 2120; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last re
2、vision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 This practice provides guidance for testing the loadcapacity of treestands.1.2 The values stated are in inch-pound units and
3、 are to beregarded as the standard.1.3 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limit
4、ations prior to use.2. Referenced Documents2.1 ASTM Standards:2F 2125 Test Method for Treestand Static StabilityF 2126 Test Method for Treestand Static Load CapacityF 2128 Test Method for Treestand Repetitive Loading Ca-pabilityF 2531 Test Method for Load Capacity of Treestand Seats3. Terminology3.1
5、 The terminology and definitions in the referenced docu-ments are applicable to this practice.3.2 Definitions:3.2.1 backbaradjustable component of a climbing tree-stand or handclimber that engages the tree to provide support.3.2.2 climbing treestandtreestand that provides both themeans to ascend the
6、 tree, and allow the user to remain at adesired elevation.3.2.3 handclimber, or climbing aiddevice to assist climb-ing with a climbing treestand. A structure that allows the userto support his weight when lifting a climbing treestand with hislegs.3.2.4 non-climbing, fixed position or hang-on treesta
7、ndtreestand that is secured to the tree at the elevation where it isused. (The user usually ascends the tree by some means andthen lifts the treestand to the desired position and secures it foruse.)3.2.5 platformhorizontal structural area of a treestand onwhich the user stands and/or places his feet
8、.3.2.6 treestanddevice designed to be affixed to a tree orits branches so as to permit an individual to sit or stand thereonfor the purpose of attaining an elevated position from which toobserve, photograph or hunt.4. Summary of Practice4.1 This practice provides guidelines for the selection oftests
9、 for the evaluation of the load capacity of treestands inaccordance with manufacturers capacity rating, particularlyfor quality assurance and adequacy of safety factors including:4.1.1 Static load test.4.1.2 Stability and adherence test.4.1.3 Repetitive loading test.NOTE 1Climbing treestands only.4.
10、1.4 Treestand seat loading test.4.1.5 In the event of a repetitive load failure, manufactureris to submit two additional stands for testing for final accep-tance.5. Significance and Use5.1 This practice is provided to develop and maintainuniformity in practices for the evaluation of the load capacit
11、yof treestands, particularly with regard to quality assurance andsafety factors.5.2 It is emphasized that the use of these procedures will notalter the validity of data determined with specific test methods,but provides guidance in the interpretation of test results (validor invalid) and guidance in
12、 the selection of a reasonable testprocedure in those instances where no standard exists today.6. Selection of Test Procedures6.1 The following methods are recommended for individualunits and situations:1This practice is under the jurisdiction of ASTM Committee F08 on SportsEquipment and Facilities
13、and is the direct responsibility of Subcommittee F08.16 onArchery Products.Current edition approved May 1, 2006. Published May 2006. Originallyapproved in 2001. Last previous edition approved in 2001 as F 2120 01.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Cu
14、stomer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.6.1.1 An individual test unit of
15、the specified model shall beselected at random.6.1.2 The test unit shall first be visually inspected for anyflaws, defects, missing parts, etc. and any discrepancies sonoted. The test unit shall also be checked, and so noted, toassure that instructions are included with the unit.6.1.3 The initial te
16、st performed shall be a repetitive loadingtest in accordance with Test Method F 2128.6.1.4 After successful testing as given in 6.1.3, a stabilityand adherence test in accordance with Test Method F 2125.6.1.5 After successful testing as given in 6.1.4, a static loadtest shall be performed in accorda
17、nce with Test MethodF 2126.6.1.6 After successful testing as given in 6.1.5, a static loadtest of the treestand seat shall be performed in accordance withTest Method F 2531.7. Failure Criterion7.1 During all testing, yielding, permanent deformation,cracks or other structural defects shall be cause f
18、or failure.Visual inspection shall be the main inspection method; how-ever, other non-destructive test methods may be used todetermine if yielding has occurred.7.2 During static stability and adherence testing, the standswill rotate as the load is applied. No sudden movement of thestand shall occur
19、that could cause the user to lose their balance.8. Keywords8.1 adherence; backbar; climbing aid; platform; treestandAPPENDIX(Nonmandatory Information)X1. Additional InformationX1.1 This practice is provided for use by manufacturers oftreestands and testing companies. Criteria has been developedfor c
20、ertification of treestands and this practice is an integralpart of the certification. However, a treestand conforming tothis practice alone does not constitute certification and thosemanufacturers desiring certification must meet all applicablestandards as a minimum requirement.ASTM International ta
21、kes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the riskof infringement of such rights, are entirely their own r
22、esponsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standardsand should be addre
23、ssed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at t
24、he address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org).F2120062
