ASTM F2337-2003 Standard Test Method for Treestand Fall Arrest System《Treestand防落系统标准试验方法》.pdf

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1、Designation: F 2337 03An American National StandardStandard Test Method forTreestand Fall Arrest System1This standard is issued under the fixed designation F 2337; 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 test method covers the determination of the loadcapacities for treestand fall arrest systems (FAS) and compo-nents or s

3、ubsystems.1.2 The values stated are in inch-pound units and are to beregarded as standard.1.3 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 equipmen

4、t.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 establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced

5、 Documents2.1 ANSI Standard:ANSI Z359.1 Safety Requirements for Personal Fall ArrestSystems, Subsystems and Components22.2 Other Document:Individual Manufacturers FAS Instruction3. Terminology3.1 The terminology and definitions in the referenced docu-ments are applicable to this practice.3.2 Definit

6、ions:3.2.1 anchoragea component/structure to which a FBH isattached to the tree trunk.3.2.2 climbing belta strap/belt (or system of straps) whichis fastened about the person in a manner so as to contain thetorso and stabilize the users horizontal load while eitherworking from a vertical position to

7、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 connecting hardwareincludes snap hooks, D-rings,carabineers, links, anchorage hardware, and buckles. Anyhardware that connects the FAS compo

8、nents in series, thuscreating a linear linkage along which the maximum arrest force(MAF) acts.3.2.4 fall arrest system (FAS)a system which is assembledfor the purpose of arresting an accidental fall of its user. A FASconsists of a full body harness, lanyard, anchorage means, andconnecting hardware.3

9、.2.5 full body harness (FBH)a component with a designof straps which is fastened about the person in a manner so asto contain the torso and distribute the fall arrest forces over atleast the upper thighs, pelvis, chest, and shoulders with meansfor attaching it to other components or subsystems.3.2.6

10、 lanyardsa component consisting of a flexible strap,rope, or wire rope for connecting a component such as a FBHdirectly or indirectly to an anchorage.3.2.7 maximum arrest forcethe maximum force acting onthe body at the instant of an arrest of its free fall.3.2.8 shock absorbersa component used to re

11、duce/absorbthe energy gained by the user of the FAS when falling.3.2.9 thigh/leg strapsthe straps, which are integrated withthe buttock strap (optional) and are routed from back to frontacross the groin area or loop around the upper part of the thigh.3.2.10 treestanda device designed to be affixed t

12、o 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, or hunt.4. Summary of Test Method4.1 One system test shall consist of the testing of oneindividual fall arrest system unit for maximum arre

13、st force(MAF) in accordance with the procedures in 7.1.4.2 One system test shall consist of the testing of oneindividual fall arrest system unit for performance in accordancewith the procedures in 7.2.4.3 One system test shall consist of testing one individualfall arrest system unit for dynamic stre

14、ngth in accordance withthe procedures in Section 8.1This test method is under the jurisdiction of ASTM Committee F08 on SportsEquipment and Facilities and is the direct responsibility of Subcommittee F08.16 onArchery Products.Current edition approved Nov. 1, 2003. Published November 2003.2Available

15、from American National Standards Institute (ANSI), 25 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.4.4 One climbing belt test shall consist of testing oneindividual climbing belt (for use

16、only if FAS includes integralclimbing belt) in accordance 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 an

17、d Use5.1 This test method is intended to measure the maximumarrest 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-tan

18、ce test.6. Apparatus6.1 A vertical, rigid, round wood pole 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 t

19、heprovisions of 7.1.4, 7.2.4, 8.1.3, and 9.1.3.6.3 The test weight torso used during the performance testshall weigh 220 6 2 lb. The test weight torso shall be inaccordance with ANSI Z359-1 Standard, Appendix B, Figs. 18and 19.6.4 The test weight torso used during the dynamic strengthtest shall weig

20、h not less than 300 lb or shall equal the weightof the stated weight 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

21、 required elevation by means of a man lift, forklift/basket, orother 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 free

22、fall of the test weight torso.6.7 The instrumentation used to measure the MAF of theFAS should consist of a force sensor or load cell capable ofmeasuring peak loads up to 3,375 lb (15 kN). The recordingdata channel shall have a minimum sampling rate of 1,000samples per second and an active frequency

23、 response band upto a corner frequency of 100 Hz + 1.2 dB, 3 dB.7. Performance 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 pro

24、per procedure for use and donning. Secure theFAS anchorage to the mounting 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

25、 is a distance of 6 ft or twice the maximumlanyard length or whichever 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 permane

26、nt stop placed directlyunder the anchorage to the backside of the pole 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 m

27、aximum length of the lanyard (if adjustable) or adistance which allows 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 willeq

28、ual twice the maximum available length or 6 ft, whichever isless.7.1.5 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 b

29、e closelyobserved for any unusual or unsafe action. Measure and recordthe 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

30、FAS has been engaged, the test weight torsoshall be lowered to the ground and the FAS inspected fordamage. Compare test results to the requirements set forth in11.1-11.3.7.2 The following procedures shall apply to one individualunit of a given FAS with the test weight torso as given in 6.3dropped “f

31、ace first.”7.2.1 Read instructions accompanying the test subject toascertain 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 o

32、f 6 ft ortwice the maximum lanyard length, or whichever is less. Anyadded 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

33、 backside of the pole to eliminatemovement during test.7.2.4 Attach the 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

34、 that its free-fall begins at the point above theanchorage equal to the 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 asclose to the pole as practical or not greater than 1 ft with notension in the

35、lanyard prior to release. In such a manner, thefree-fall distance will equal twice the maximum availablelength or 6 ft, whichever is less.F23370327.2.5 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

36、essentially vertical with minimal“swinging” of the test subject. The fall shall be closelyobserved for any unusual or unsafe action. Measure and recordthe deceleration distance, and whether or not any test torsodetaches from the harness. After the drop, the test weight torsois to remain suspended by

37、 the FAS for a period of 5 min.7.2.6 After the FAS has been engaged, the test weight torsoshall be lowered to the ground and the FAS inspected fordamage. Compare test results to the requirements set forth in11.1 and 11.2.8. Dynamic Strength Test Procedure8.1 The following procedures shall apply to o

38、ne individualunit of a given FAS and test weight torso as given in 6.4 anddropped “feet first.”8.1.1 Read instructions accompanying the test subject toascertain the proper procedure for use and donning. Secure theFAS to the mounting pole and the test weight torso inaccordance with the device manufac

39、turers instructions.8.1.2 Prior to performing the drop test, the anchorage shallbe properly secured with a permanent 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 tors

40、o shall be raised to an elevation suchthat its free-fall begins at the point above the anchorage equalto the 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 t

41、han 1 ft with no tension in the lanyard prior to release.In such a manner, the free-fall distance will equal 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”o

42、r otherwise released as if to simulate a free-fall from atreestand platform. The fall should be essentially vertical withminimal “swinging” of the test subject. The fall shall be closelyobserved for any unusual or unsafe action.8.1.5 After the FAS has been engaged, the test weight torsoshall be lowe

43、red to the ground 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 11.4.9. Climbing Belt Test ProcedureNOTE 1For use only if FAS includes integral climbing belt.9.1 The fol

44、lowing procedures 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

45、 and the test weight 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 Attac

46、h the quick release mechanism to the neck ringon the test weight torso. The climbing belt length shall beadjusted to its maximum length. The test weight torso shall beraised to an elevation such that its free-fall begins at the pointabove the maximum available length of the climbing belt whenencompa

47、ssing the test pole. The test weight torso shall belocated 3 in. horizontally away from the test pole with notension in the climbing belt prior to release. In such a manner,the free-fall distance will equal twice its maximum adjustedlength in use.9.1.4 The test weight torso shall be dropped “feet fi

48、rst” orotherwise released as if to simulate a free-fall from a treestandplatform, ladder or other tree climbing means. The fall shouldbe essentially vertical with minimal “swinging” of the testsubject. The fall shall be closely observed for any unusual orunsafe action.9.1.5 After the FAS has been en

49、gaged, the test weight torsoshall be lowered to the ground and the FAS inspected fordamage. Record the test results and whether or not the testweight mannequin detaches from the FBH. Compare the testresults to the requirements set forth in 11.4.10. Recording of Test Results10.1 Recording of results shall include the following:10.1.1 Identification of FAS model, manufacturer, and ratedcapacity,10.1.2 Photographs of FAS before each test and aftertesting,10.1.3 Maximum Arrest Force measurement determinedfrom Section 7,10.1.4 Verification of calibration,10.1.5 Written descrip