ASTM F2126-01
(Test Method)Standard Test Method for Treestand Static Load Capacity
Standard Test Method for Treestand Static Load Capacity
SCOPE
1.1 This test method covers the determination of the static load capacity of treestands in terms of a factor of safety relative to the manufacturer's rated capacity.
1.2 The values stated are in inch-pound units and are to be regarded as the standard.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
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An American National Standard
Designation:F2126–01
Standard Test Method for
Treestand Static Load Capacity
This standard is issued under the fixed designation F 2126; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope 2.2.7 platform—the horizontal structural area of a treestand
on which the user stands and/or places his feet.
1.1 This test method covers the determination of the static
2.2.8 treestand—a device designed to be affixed to a tree or
loadcapacityoftreestandsintermsofafactorofsafetyrelative
its branches so as to permit an individual to sit or stand thereon
to the manufacturer’s rated capacity.
for the purpose of attaining an elevated position from which to
1.2 The values stated are in inch-pound units and are to be
observe, photograph or hunt.
regarded as the standard.
2.2.9 tripod or tower treestand—a tripod or tower treestand
1.3 This standard does not purport to address all of the
is constructed to be self-supporting and is not required to be
safety concerns, if any, associated with its use. It is the
secured to a tree.
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica-
3. Summary of Test Method
bility of regulatory limitations prior to use.
3.1 A climbing treestand is mounted so that its platform is
2. Terminology perpendicular or slightly above horizontal to a rigid wood or
metal pole when the rated load is applied parallel to the
2.1 The terminology and definitions in the referenced docu-
mounting pole. A fixed position or ladder treestand shall be
ments are applicable to this test method.
mounted with the platform perpendicular to the mounting pole.
2.2 Definitions:
A tripod stand shall be positioned so that the platform is
2.2.1 backbar or V-bar—the adjustable component of a
perpendicular to the application of the load. A climbing stick
climbing treestand or handclimber that engages the tree to
shall be mounted such that the steps are perpendicular to the
provide support. The backbar may be rigid or flexible.
pole. The platform is equipped with deflection measurement
2.2.2 climbing stick—a device used to assist climbing a tree
devices. The load is applied step-wise and recordings are made
primarily to a fixed position treestand. A structure that is
of the load and deflection at each step until yielding or
secured to the tree and allows the user to support his weight
permanent deflection occurs or until twice the rated load is
and climb to the desired height on the tree.
applied. The steps to ladder, tripod and climbing sticks do not
2.2.3 climbing treestand—a treestand that provides both the
require deflection measurements be taken.
means to ascend the tree, and allow the user to remain at a
desired elevation.
4. Significance and Use
2.2.4 handclimber, or climbing aid—a device to assist
4.1 This test method is intended for quality assurance and
climbing with a climbing treestand.Astructure that allows the
production control purposes.
user to support his weight when lifting a climbing treestand
with his legs.
5. Apparatus
2.2.5 ladder treestand—a treestand that is secured to the
5.1 Arigid round wood or metal pole, preferably vertical, is
tree at the elevation where the platform is located. (The ladder
used to mount the subject product such that pole deflection is
treestand may be secured to the tree at other locations and has
minimized.
steps that are used to reach the platform or hunting position.)
5.1.1 The mounting pole diameter shall be 10 in. (254 mm),
2.2.6 non-climbing, fixed position or hang-on treestand—a
6 1 in. (25.4 mm).
treestand that is secured to the tree at the elevation where it is
5.2 The load shall be applied using either calibrated weights
used. (The user usually ascends the tree by some means and
or a mechanical device in conjunction with a calibrated load
then lifts the treestand to the desired position and secures it for
cell.
use.)
5.2.1 The use of calibrated weights requires that weight
placement be accurate to assure that the load application
This test method is under the jurisdiction of ASTM Committee F08 on Sports centroid is coincident with the boundaries defined and meets
Equipment and Facilities and is the direct responsibility of Subcommittee F08.16 on
the requirements as given in 5.4. Caution should be exercised
Archery Products.
Current edition approved June 10, 2001. Published August 2001.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
F2126
for operator protection with the use of weights in case of 6.2 By geometric means, determine the location of the
slippage or premature failure. centroid of the platform area and mark accordingly. Place the
load plate centerline coincident with the centroid of the
5.2.2 The use of a mechanical device such as a tensile
platform.
testing machine or hydraulic power, in combination with
6.3 Determine if the test subject will deflect sufficiently
pulleys, fulcrums or bearings to re-direct forces, requires the
during the test to allow the load plate to slip or shift. If so,
use of a calibrated load cell attached adjacent to the test subject
provide auxiliary means such as clamps or stops to eliminate
to account for friction losses.
sidewaysmovementoftheloadplate.Theloadmustbeapplied
5.3 Calibrated deflection measuring devices (such as dial
as given in 5.4 and must be continuously applied parallel to the
indicators or optical laser) shall be used to measure movement
mounting pole throughout the entire test.
of the test subject under load. The accuracy of the measuring
6.4 Locate and mount deflection measurement devices, or
devices shall be at within .010 in. (0.254 mm) and repeatable
reference points using optical laser, as given in 5.3.
within .005 in. (0.127 mm). The devices shall measure move-
6.5 Theinitialloadforbeginningthetestshallbeone-fourth
ment parallel to the direction of the applied load and shall be
of the test subjects’ rated capacity. Example: a test subject with
mounted in such a manner to eliminate deflection of the test
aratedcapacityof400lbs(882kg)shallbeginthetestataload
apparatus and be placed, as a minimum, as follows:
of 100 lbs (200 kg). Loads shall be increased by 25 %
5.3.1 There shall b
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