ANSI ASTM F2125-2009 Standard Test Method for Treestand Static Stability and Adherence《爬树架静稳定性及附着性的测试方法》.pdf
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1、Designation: F2125 09 (Reapproved 2013) An American National StandardStandard Test Method forTreestand Static Stability and Adherence1This standard is issued under the fixed designation F2125; the number immediately following the designation indicates the year oforiginal adoption or, in the case of
2、revision, the 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 test method covers the determination of the staticstability and adherence of treestands rel
3、ative to the manufac-turers rated capacity.1.2 The values stated in inch-pound units are to be regardedas standard. The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.1.3 This standard does not purport to addr
4、ess 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 limitations prior to use.2. Terminology2.1 The terminology and definitions in the
5、referenced docu-ments are applicable to this test method.2.2 Definitions:2.2.1 backbar or V-baradjustable component of a climb-ing treestand or handclimber that engages the tree to providesupport. The backbar may be rigid or flexible.2.2.2 climbing stickdevice used to assist climbing a treeprimarily
6、 to a fixed position treestand. A structure that issecured to the tree and allows the user to support his weightand climb to the desired height on the tree.2.2.3 climbing treestandtreestand that provides both themeans to ascend the tree, and allow the user to remain at adesired elevation.2.2.4 handc
7、limber, 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.2.2.5 ladder treestandtreestand that is secured to the treeat the elevation where the platform is located. (The laddertree
8、stand may be secured to the tree at other locations and hassteps that are used to reach the platform or hunting position.)2.2.6 non-climbing, fixed position 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 an
9、dthen lifts the treestand to the desired position and secures it foruse.)2.2.7 platformhorizontal structural area of a treestand onwhich the user stands and/or places his feet.2.2.8 treestanddevice designed to be affixed to a tree or itsbranches so as to permit an individual to sit or stand thereon
10、forthe purpose of attaining an elevated position from which toobserve, photograph or hunt.2.2.9 tripod or tower standtripod or tower stand is con-structed to be self-supporting and is not required to be securedto a tree.3. Summary of Test Method3.1 A climbing treestand is mounted so that its platfor
11、m isperpendicular to a rigid wood or metal pole when the rated loadis applied parallel to the mounting pole, at selected points. Afixed position or ladder stand shall be mounted with theplatform perpendicular to the mounting pole. A tripod standshall be positioned so that the platform is perpendicul
12、ar to theapplication of the load. A climbing stick shall be mounted suchthat the steps are perpendicular to the pole. The platform isequipped with deflection measurement devices. The load isapplied, in order, at the selected points and recordings are madeof the deflection at each point unless the te
13、st subject movesfrom its initial position or until permanent deflection from theload occurs. During this test, the test subject will rotate, butshall not slip or have permanent deformation.3.2 In addition, for climbing treestands, only the test givenin 3.1 is duplicated, except that the treestand pl
14、atform is notperpendicular to the mounting pole, but at an angle approxi-mately 15, such as that used in ascending or descending a tree.4. Significance and Use4.1 This test method is intended for quality assurance andproduction control purposes. This test method is not intendedto be an independent m
15、aterial or product-acceptance test.5. Apparatus5.1 A rigid round wood or metal pole, preferably vertical, isused to mount the subject product such that pole deflection isminimized.1This test method is under the jurisdiction of ASTM Committee F08 on SportsEquipment, Playing Surfaces, and Facilitiesan
16、d is the direct responsibility ofSubcommittee F08.16 on Archery Products.Current edition approved Nov. 1, 2013. Published January 2014. Originallyapproved in 2001. Last previous edition approved in 2009 as F2125 09. DOI:10.1520/F2125-09R13.Copyright ASTM International, 100 Barr Harbor Drive, PO Box
17、C700, West Conshohocken, PA 19428-2959. United States15.1.1 The mounting pole diameter shall be 10 6 1 in. (2546 25.4 mm).5.2 The load shall be applied using either calibrated weightsor a mechanical device in conjunction with a calibrated loadcell.5.2.1 The use of calibrated weights requires that we
18、ightplacement be accurate to assure that the load applicationcentroid is coincident with the boundaries defined and meetsthe requirements as given in 5.3.1 and in 5.4.3. Caution shouldbe exercised for operator protection with the use of weights incase of slippage or premature failure.5.2.2 The use o
19、f a mechanical device such as a tensiletesting machine or hydraulic power, in combination withpulleys, fulcrums or bearings to re-direct forces, requires theuse of a calibrated load cell attached adjacent to the test subjectto account for friction losses.5.3 Calibrated deflection measuring devices (
20、such as dialindicators or optical laser) shall be used to measure movementof the test subject under load. The accuracy of the measuringdevices shall be at within .010 in. (0.254 mm) and repeatablewithin .005 in. (0.127 mm). The devices shall measure move-ment parallel to the direction of the applied
21、 load and shall bemounted in such a manner to eliminate deflection of the testapparatus and be placed, as a minimum, as follows:5.3.1 There shall be at least four platform deflection mea-surements taken when the load is applied.5.3.1.1 One measurement on each side of the test subject,symmetrical abo
22、ut the test subject centerline and at pointsfurthest from the mounting pole, that is, the outermost cornersof the platform.5.3.1.2 One measurement on each side of the test subject,symmetrical about the test subject centerline and at pointsclosest to the mounting pole, but on the outermost sides of t
23、heplatform, that is, the outermost edges closest to the mountingpole.5.4 The application of the load shall be at the points as givenin 5.3.1 on the platform area.5.4.1 The load shall be applied, one at a time, to the pointsas given in 5.3.1.1, each side, and then as given in 5.3.1.2, eachside.5.4.2
24、The load shall be applied to the test subject over a 50in.2(0.032 m2) area by means of a flat rectangular steel plate 5in. (127 mm) wide by 10 in. (254 mm) long and a minimum of12 in. (12.7 mm) thick. The edges of the load plate adjacent tothe test subject shall be deburred with 0.015/0.030 in. (0.3
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