ASTM F2120-2006(2010) Standard Practice for Testing Treestand Load Capacity《测试Treestand负荷能力的标准规范》.pdf

1、Designation: F2120 06 (Reapproved 2010)An American National StandardStandard Practice forTesting Treestand Load Capacity1This standard is issued under the fixed designation F2120; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the

2、 year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () 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-

3、pound units and 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 r

4、egulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2F2125 Test Method for Treestand Static Stability and Ad-herenceF2126 Test Method for Treestand Static Load CapacityF2128 Test Method for Treestand Repetitive Loading Ca-pabilityF2531 Test Method for Load Capacity of Treest

5、and Seats3. Terminology3.1 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 b

6、oth themeans to ascend the 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 p

7、osition or hang-on treestandtreestand 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 sta

8、nds and/or places his feet.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

9、 for the selection oftests 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 1C

10、limbing treestands only.4.1.4 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 eval

11、uation of the load capacityof 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 (valido

12、r invalid) and guidance in 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:6.1.1 An individual test unit of the specified model shall beselected a

13、t 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.1This practice is under the jurisdiction of ASTM Committee

14、 F08 on SportsEquipment and Facilities and is the direct responsibility of Subcommittee F08.16 onArchery Products.Current edition approved May 1, 2010. Published May 2010. Originallyapproved in 2001. Last previous edition approved in 2006 as F2120 06. DOI:10.1520/F2120-06R10.2For referenced ASTM sta

15、ndards, visit the ASTM website, www.astm.org, orcontact ASTM Customer 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,

16、 PA 19428-2959, United States.6.1.3 The initial test performed shall be a repetitive loadingtest in accordance with Test Method F2128.6.1.4 After successful testing as given in 6.1.3, a stabilityand adherence test in accordance with Test Method F2125.6.1.5 After successful testing as given in 6.1.4,

17、 a static loadtest shall be performed in accordance with Test Method F2126.6.1.6 After successful testing as given in 6.1.5, a static loadtest of the treestand seat shall be performed in accordance withTest Method F2531.7. Failure Criterion7.1 During all testing, yielding, permanent deformation,crac

18、ks or other structural defects shall be cause for 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 appli

19、ed. No sudden movement of thestand shall occur 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 test

20、ing companies. Criteria has been developedfor certification 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

21、 as a minimum requirement.ASTM International takes 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 infrin

22、gement of such rights, are entirely their own responsibility.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

23、 or for additional standardsand should be addressed 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

24、 known to the ASTM Committee on Standards, at the 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). Permission rights to photocopy the standard may also be secured from the ASTM website (www.astm.org/COPYRIGHT/).F2120 06 (2010)2