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    ASTM F2337-2010 Standard Test Method for Treestand Fall Arrest System《Treestand防跌落系统的标准试验方法》.pdf

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    ASTM F2337-2010 Standard Test Method for Treestand Fall Arrest System《Treestand防跌落系统的标准试验方法》.pdf

    1、Designation: F2337 10An American National StandardStandard Test Method forTreestand Fall Arrest System1This standard is issued under the fixed designation F2337; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revi

    2、sion. 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 loadcapacities for treestand fall arrest systems (FAS) and compo-nents or subs

    3、ystems.1.2 This test method addresses equipment used in huntingsituations requiring personal protection against falls fromheights and applies to the manufacturers, distributors, purchas-ers, and users of such equipment.1.3 The values stated in inch-pound units are to be regardedas standard. The valu

    4、es given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.1.4 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 esta

    5、blish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ANSI Standard:ANSI Z359.1 Safety Requirements for Personal Fall ArrestSystems, Subsystems and Components22.2 Other Document:Individual Manufacturers FAS I

    6、nstruction3. Terminology3.1 The terminology and definitions in the referenced docu-ments are applicable to this practice.3.2 Definitions:3.2.1 anchorage, na component/structure to which a FBHis attached to the tree trunk.3.2.2 climbing belt, na strap/belt (or system of straps)which is fastened about

    7、 the person in a manner so as to containthe torso and stabilize the users horizontal load while eitherworking from a vertical position to attach treestands, climbingdevices, and so forth, or during ascent/descent of tree or ladder.A FBH may be constructed to additionally serve this function.3.2.3 co

    8、nnecting hardware, nincludes snap hooks,D-rings, carabineers, links, anchorage hardware, and buckles.Any hardware that connects the FAS components in series,thus creating a linear linkage along which the maximum arrestforce (MAF) acts.3.2.4 fall arrest system (FAS), na system which is as-sembled for

    9、 the purpose of arresting an accidental fall of itsuser.AFAS consists of a full body harness, lanyard, anchoragemeans, and connecting hardware.3.2.5 full body harness (FBH), na component with adesign of straps which is fastened about the person in a mannerso as to contain the torso and distribute th

    10、e fall arrest forcesover at least the upper thighs, pelvis, chest, and shoulders withmeans for attaching it to other components or subsystems.3.2.6 lanyards, na component consisting of a flexiblestrap, rope, or wire rope for connecting a component such as aFBH directly or indirectly to an anchorage.

    11、3.2.7 maximum arrest force, nthe maximum force actingon the body at the instant of an arrest of its free fall.3.2.8 shock absorbers, na component used to reduce/absorb the energy gained by the user of the FAS when falling.3.2.9 suspension relief device, na device to allow relief ofa persons weight o

    12、n the lower extremities if suspended in aharness, or allow the user to descend to the ground. The deviceis to help maintain circulation in the legs and help preventsuspension trauma (blood pooling).3.2.10 thigh/leg straps, nthe straps, which are integratedwith the buttock strap (optional) and are ro

    13、uted from back tofront across the groin area or loop around the upper part of thethigh.3.2.11 treestand, na device designed to be affixed to a treeor its branches so as to permit an individual to sit or standthereon for the purpose of attaining an elevated position fromwhich to observe, photograph,

    14、or hunt.4. Summary of Test Method4.1 One system test shall consist of the testing of oneindividual fall arrest system unit for maximum arrest force(MAF) in accordance with the procedures in 7.1.1This test method is under the jurisdiction of ASTM Committee F08 on SportsEquipment and Facilities and is

    15、 the direct responsibility of Subcommittee F08.16 onArchery Products.Current edition approved Aug. 1, 2010. Published September 2010. Originallyapproved in 2003. Last previous edition approved in 2008 as F2337 08. DOI:10.1520/F2337-10.2Available from American National Standards Institute (ANSI), 25

    16、W. 43rd St.,4th Floor, New York, NY 10036.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.4.2 One system test shall consist of the testing of oneindividual fall arrest system unit for performance in accordancewith the procedures in 7

    17、.2.4.3 One system test shall consist of testing one individualfall arrest system unit for dynamic strength in accordance withthe procedures in Section 8.4.4 One climbing belt test shall consist of testing oneindividual climbing belt (for use only if FAS includes integralclimbing belt) in accordance

    18、with the procedures in Section 9.4.5 For each test a test weight torso having the physicalproperties described in 6.3 or 6.4 shall be dropped from anadequate elevation to simulate a free-fall motion from atreestand platform.5. Significance and Use5.1 This test method is intended to measure the maxim

    19、umarrest force and dynamic strength on treestand FAS andcomponents or subsystems. This test is intended for programquality assurance and production quality control purposes. It isnot intended to be an independent material or product accep-tance test.6. Apparatus6.1 A vertical, rigid, round wood pole

    20、 shall be used tomount the test weight torso and fall arrest system (FAS) suchthat pole deflection is minimized during testing.6.2 The mounting pole diameter shall be 10 6 1 in. andshall have a minimum height necessary for free fall to meet theprovisions of 7.1.4, 7.2.4, 8.1.3, and 9.1.3.6.3 The tes

    21、t weight torso used during the performance testshall weigh 220 6 2 lb. The test weight torso shall be inaccordance with ANSI Z359.1, Appendix B, Figs. 18 and 19.6.4 The test weight torso used during the dynamic strengthtest shall weigh not less than 300 lb or shall equal the weightof the stated weig

    22、ht capacity of the test subject 63 lb, orwhichever is greater. The torso shall also be designed such thatit closely resembles the human shape and human center ofgravity.6.5 The test weight torso and test operator shall be raised tothe required elevation by means of a man lift, forklift/basket, oroth

    23、er device capable of providing means to ascend to theproper elevation and provide a stable and safe workingenvironment.6.6 The free fall may be induced by manual or automaticmeans, and shall accomplish an unobstructed, continuous freefall of the test weight torso.6.7 The instrumentation used to meas

    24、ure the MAF of theFAS should consist of a force sensor or load cell capable ofmeasuring peak loads up to 3375 lb (15 kN). The recordingdata channel shall have a minimum sampling rate of 1000samples per second and an active frequency response band upto a corner frequency of 100 Hz + 1.2 dB, 3 dB.7. P

    25、erformance Test Procedure7.1 The following procedures shall apply to one individualunit of a given FAS with the test torso as given in 6.3 dropped“feet first.”7.1.1 Read instructions accompanying the test subject toascertain the proper procedure for use and donning. Secure theFAS anchorage to the mo

    26、unting pole and the test torso inaccordance with the device manufacturers instructions.7.1.2 The force sensor or load cell shall be placed in serieswith the full body harness and lanyard or anchorage. The totalfall distance required is a distance of 6 ft or twice the maximumlanyard length or whichev

    27、er is less.Any length added from theforce sensor or load cell and any connecting hardware must besubtracted from the total fall distance.7.1.3 Prior to performing the drop test, the anchorage shallbe properly secured with a permanent stop placed directlyunder the anchorage to the backside of the pol

    28、e to eliminatemovement during test.7.1.4 Attach the quick release mechanism to the test weighttorso. The test weight torso shall be raised to an elevation suchthat its free fall begins at the point above the anchorage equalto the maximum length of the lanyard (if adjustable) or adistance which allow

    29、s 6 ft of free fall, whichever is less. Thetest weight torso shall be located as close to the pole aspractical or not greater than 1 ft with no tension in the lanyardprior to release. In such a manner, the free-fall distance willequal twice the maximum available length or 6 ft, whichever isless.7.1.

    30、5 The test weight torso shall be dropped “feet first” orotherwise released as if to simulate a free-fall from a treestandplatform. The fall should be essentially vertical with minimal“swinging” of the test subject. The fall shall be closelyobserved for any unusual or unsafe action. Measure and recor

    31、dthe maximum arrest force (MAF), deceleration distance, andwhether or not any test weight torso detaches from the harness.After the drop, the test weight torso is to remain suspended bythe FAS for a period of 5 min.7.1.6 After the FAS has been engaged, the test weight torsoshall be lowered to the gr

    32、ound and the FAS inspected fordamage. Compare test results to the requirements set forth in12.1-12.3.7.2 The following procedures shall apply to one individualunit of a given FAS with the test weight torso as given in 6.3dropped “face first.”7.2.1 Read instructions accompanying the test subject toas

    33、certain the proper procedure for use and donning. Secure theFAS anchorage to the mounting pole and the test weight torsoin accordance with the device manufacturers instructions.7.2.2 The total fall distance required is a distance of 6 ft ortwice the maximum lanyard length, or whichever is less. Anya

    34、dded length from any connecting hardware must be subtractedfrom the total fall distance.7.2.3 Prior to performing the drop test, the anchorage shallbe properly secured with a permanent stop placed directlyunder the anchorage to the backside of the pole to eliminatemovement during test.7.2.4 Attach t

    35、he quick release mechanism to the test weighttorso at a point located at the buttocks or other means ofattachment that will allow the test torso to be releasedappropriately. The test weight torso shall be raised to anelevation such that its free-fall begins at the point above theanchorage equal to t

    36、he maximum length of the lanyard (ifadjustable) or a distance which allows 6 ft of free fall,whichever is less. The test weight torso shall be located asF2337 102close to the pole as practical or not greater than 1 ft with notension in the lanyard prior to release. In such a manner, thefree-fall dis

    37、tance will equal twice the maximum availablelength or 6 ft, whichever is less.7.2.5 The test weight torso shall be dropped “face first” orotherwise released as if to simulate a free-fall from a treestandplatform. The fall should be essentially vertical with minimal“swinging” of the test subject. The

    38、 fall shall be closelyobserved for any unusual or unsafe action. Determine whetheror not any test torso detaches from the harness. After the drop,the test weight torso is to remain suspended by the FAS for aperiod of 2 min.7.2.6 After the FAS has been engaged, the test weight torsoshall be lowered t

    39、o the ground and the FAS inspected fordamage. Compare test results to the requirements set forth in12.1 and 12.2.8. Dynamic Strength Test Procedure8.1 The following procedures shall apply to one individualunit of a given FAS and test weight torso as given in 6.4 anddropped “feet first.”8.1.1 Read in

    40、structions accompanying the test subject toascertain the proper procedure for use and donning. Secure theFAS to the mounting pole and the test weight torso inaccordance with the device manufacturers instructions.8.1.2 Prior to performing the drop test, the anchorage shallbe properly secured with a p

    41、ermanent stop placed directlyunder the anchorage to the backside of pole to eliminatemovement during test.8.1.3 Attach the quick release mechanism to the test weighttorso. The test weight torso shall be raised to an elevation suchthat its free-fall begins at the point above the anchorage equalto the

    42、 maximum length available by the lanyard or a distancewhich allows 6 ft of free fall, whichever is less. The test weighttorso shall be located as close to the pole as practical or notgreater than 1 ft with no tension in the lanyard prior to release.In such a manner, the free-fall distance will equal

    43、 twice themaximum available lanyard length or 6 ft, whichever is less.8.1.4 Release the test weight torso using the quick releasemechanism. The test weight torso shall be dropped “feet first”or otherwise released as if to simulate a free-fall from atreestand platform. The fall should be essentially

    44、vertical withminimal “swinging” of the test subject. The fall shall be closelyobserved for any unusual or unsafe action. After the drop, thetest weight torso is to remain suspended by the FAS for aperiod of 2 min.8.1.5 After the FAS has been engaged, the test weight torsoshall be lowered to the grou

    45、nd and the FAS inspected fordamage. Record the test results and whether or not the testweight torso detaches from the FBH. Compare the test resultsto the requirements set forth in 12.4.9. Climbing Belt Test ProcedureNOTE 1For use only if FAS includes integral climbing belt.9.1 The following procedur

    46、es shall apply to one individualunit of a given FAS with climbing belt (if provided) and testweight torso as given in 6.4 dropped “feet first.”9.1.1 Read instructions accompanying the test subject toascertain the proper procedure for use and donning. Secure theFAS to the mounting pole and the test w

    47、eight torso inaccordance with the device manufacturers instructions.9.1.2 Prior to performing the drop test, the climbing beltshall be properly secured with a permanent stop placed directlyunder the climbing belt to the backside of pole to eliminatemovement during the test.9.1.3 The climbing belt le

    48、ngth shall be adjusted to a lengththat allows a horizontal gap distance of 24 6 1 in. (610 mm)or the maximum length of the climbing belt, which ever is less,between the test torso and the closest perimeter of the test pole.Record the effective length of the climbing belt used asmeasured in a horizon

    49、tal plane from the connecting point onone side of the harness, around the test pole, and returning tothe opposite harness connection point. The test weight torsoshall be raised to an elevation such that there is a 3 6 1-in.(76-mm) horizontal gap distance between the test torso and theclosest perimeter of the test pole while maintaining no slack(taut) in the adjusted climbing belt length. Free-fall begins atthis elevation point. In such a manner, the free-fall distancewill result in an equivalent of twice (23) its adjusted length inuse.9.1.4 The test weight torso sha


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