ASTM F2337-2018 Standard Test Method for Treestand Fall Arrest System.pdf

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1、Designation: F2337 16F2337 18 An 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

2、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 load capacities for treestand fall arrest systems (FAS) and component

3、s orsubsystems.1.2 This test method addresses equipment used in hunting situations requiring personal protection against falls from heights andapplies to the manufacturers, distributors, purchasers, and users of such equipment.1.3 The values stated in inch-pound units are to be regarded as standard.

4、 The values given in parentheses are mathematicalconversions to SI units that are provided for information only and are not considered standard.1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibilityof the user of this stand

5、ard to establish appropriate safety safety, health, and healthenvironmental practices and determine theapplicability of regulatory limitations prior to use.1.5 This international standard was developed in accordance with internationally recognized principles on standardizationestablished in the Deci

6、sion on Principles for the Development of International Standards, Guides and Recommendations issuedby the World Trade Organization Technical Barriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:2F1749 Specification for Fitness Equipment and Fitness Facility Safety Signage and

7、 Labels2.2 ANSI Standard:ANSI Z359.1 Safety Requirements for Personal Fall Arrest Systems, Subsystems and Components32.3 Other Document:Individual Manufacturers FAS Instruction3. Terminology3.1 The terminology and definitions in the referenced documents are applicable to this practice.3.2 Definition

8、s:3.2.1 anchorage, na component/structure component or structure, or both, to which a FBH full body harness (FBH) isattached to the tree trunk.3.2.2 carabiner, na link with a locking gate that is manually closed or automatically closes and is used to connect the tetherof a full body harness (FBH) to

9、 an anchorage.3.2.3 climbing belt, na strap/belt (or system of straps) which is fastened about the person in a manner so as to contain the torsoand stabilize the users horizontal load while either working from a vertical position to attach treestands, climbing devices, and soforth, or during ascent/

10、descent of tree or ladder. A FBH may be constructed to additionally serve this function.3.2.3.1 Discussion1 This test method is under the jurisdiction ofASTM Committee F08 on Sports Equipment, Playing Surfaces, and Facilities and is the direct responsibility of SubcommitteeF08.18 on Treestands.Curre

11、nt edition approved Oct. 1, 2016June 1, 2018. Published November 2016July 2018. Originally approved in 2003. Last previous edition approved in 20112016 asF2337 11.F2337 16. DOI: 10.1520/F2337-16.10.1520/F2337-18.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Cust

12、omer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.3 Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036.This document is not an ASTM standard an

13、d is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only

14、the current versionof the standard as published by ASTM is to be considered the official document.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1A FBH may be constructed to additionally serve this function.3.2.4 connecting hardware,

15、nincludes snap hooks, D-rings, carabineers, links, anchorage hardware, and buckles. Any anyhardware that connects the FAS components in series, thus creating a linear linkage along which the maximum arrest force (MAF)acts.3.2.4.1 DiscussionIncludes snap hooks, carabineers, links, anchorage hardware,

16、 and buckles.3.2.5 connector, na device that is used to connect components of a full body harness, fall restraint.3.2.5.1 DiscussionConnectors include but are not limited to tethers, snap hooks, carabiners, deceleration devices, and specialty systems such asself-retracting treestand safety ropes, la

17、dder climbing systems, vertical treestand safety ropes and rope grab.3.2.6 deceleration device, nany mechanism, such as a rope grab, rip stitch tether, specially woven tether, tearing or deformingtether, automatic self-retracting treestand safety ropes, etc. which serves to dissipate energy during f

18、all arrest or otherwise limitthe maximum arrest force (MAF) on a user during a fall arrest.3.2.7 deceleration distance, nthe additional vertical distance a falling user travels, excluding treestand safety rope elongationand free-fall distance before stopping, from the point at which the deceleration

19、 device begins to operate.3.2.8 engineered products, nstrategically designed products by a professional to meet a specific need.3.2.9 equivalent, a, nalternative designs, methods or materials used to protect against a hazard which the manufacturer candemonstrate will provide an equal or greater degr

20、ee of safety for the user than the methods, materials or designs specified in thestandard.3.2.10 fall arrest system (FAS), na system which is assembled for the purpose of arresting an accidental fall of its user.AFASconsists of a full body harness, lanyard, anchorage means, and connecting hardware.t

21、he complete collection of equipment andcomponents that is designed to stop a fall in progress.3.2.11 free fall, vthe act of falling before a fall arrest system (FAS) begins to apply force to arrest the fall.3.2.12 flexible stretch tether, na full body harness tether that expands and contracts follow

22、ing the users movement.3.2.13 full body harness (FBH), na component with a design of straps which is fastened about the person in a manner so asto contain the torso and distribute the fall arrest forces over at least the upper thighs, pelvis, chest, and shoulders with means forattaching it to other

23、components or subsystems.3.2.6 lanyards, na component consisting of a flexible strap, rope, or wire rope for connecting a component such as a FBHdirectly or indirectly to an anchorage.3.2.14 maximum arrest force, nthe maximum peak dynamic force actingexerted on the body at the instant of an arrest o

24、f itsfree fall.during fall arrest.3.2.15 product safety sign or label, nsign, label, hang tag or decal affixed to a product that provides safety information aboutthat product.3.2.16 rope grab, na device which travels on a connecting treestand safety rope and automatically, by friction, engages thetr

25、eestand safety rope and locks so as to arrest the fall of a user.3.2.16.1 DiscussionA rope grab usually employs the principal of inertial locking, cam/level locking, or both (that is, Prusik, Klemheist, or Autoblockknots).3.2.17 shock absorbers,safety symbols, na component used to reduce/absorb the

26、energy gained by the user of the FAS whenfalling.graphic representation intended to convey a safety message without the use of words.3.2.18 self-recovery point, nthe maximum distance a user can fall to minimize the risk of the user not having the ability torecover so that they are no longer suspende

27、d in a harness after a fall has been arrested.3.2.19 suspension relief device, na device to allow relief of a persons weight on the lower extremities if suspended in aharness, or allow the user to descend to the ground. The device is to help maintain circulation in the legs and help preventsuspensio

28、n trauma (blood pooling).3.2.19.1 DiscussionF2337 182The device is to help maintain circulation in the legs and help prevent suspension trauma (blood pooling).3.2.20 tether, na component of a treestand full body harness consisting of a flexible strap which is attached to the dorsal areaof the harnes

29、s for the purpose of securing the FBH directly or indirectly to an anchorage to the tree trunk.3.2.21 thigh/leg straps, nthe straps, which are integrated with the buttock strap (optional) and are routed from back to frontacross the groin area or loop around the upper part of the thigh.3.2.22 total f

30、all distance, nthe maximum vertical distance between a full body harness anchorage and the lowest extremityof the body before and after the fall is arrested including tether extension or drop distance, or both.3.2.23 treestand, na device designed to be affixed to a tree so as to permit an individual

31、 to sit or stand thereon for the purposeof attaining an elevated position from which to observe, photograph, or hunt.3.2.24 treestand safety rope, ncomponent consisting of a flexible line for connection to a tree trunk at one end to hangvertically and which serves as a means for connecting other com

32、ponents of a fall arrest system.4. Summary of Test Method4.1 One system test shall consist of the testing of one individual fall arrest system unit for maximum arrest force (MAF) inaccordance with the procedures in 7.1.4.2 One system test shall consist of the testing of one individual fall arrest sy

33、stem unit for performance in accordance with theprocedures in 7.2.4.3 One system test shall consist of testing one individual fall arrest system unit for dynamic strength in accordance with theprocedures in Section 8.4.4 One climbing belt test shall consist of testing one individual climbing belt (f

34、or use only if FAS includes integral climbingbelt) in accordance with the procedures in Section 9.4.5 For each test a test weight torso having the physical properties described in 6.3 or 6.4 shall be dropped from an adequateelevation to simulate a free-fall motion from a treestand platform.4.6 One s

35、tatic load test shall consist of testing one (1) individual Suspension Relief Device (for use only if FAS includes integralSRD) in accordance with the procedures in Section 10 of this standard.5. Significance and Use5.1 This test method is intended to measure the maximum arrest force and dynamic str

36、ength on treestand FAS and componentsor subsystems. This test is intended for program quality assurance and production quality control purposes. It is not intended tobe an independent material or product acceptance test.6. Apparatus6.1 A vertical, rigid, round wood pole shall be used to mount the te

37、st weight torso and fall arrest system (FAS) such that poledeflection is minimized during testing.6.2 The mounting pole diameter shall be 10 6 1 in. and shall 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 test weight torso used during t

38、he performance test shall weigh 220 6 2 lb. The test weight torso shall be in accordancewith ANSI Z359.1, Appendix B, Figs. 18 and 19.6.4 The test weight torso used during the dynamic strength test shall weigh not less than 300 lb or shall equal the weight of thestated weight capacity of the test su

39、bject 63 lb, or whichever is greater. The torso shall also be designed such that it closelyresembles the human shape and human center of gravity.6.5 The test weight torso and test operator shall be raised to the required elevation by means of a man lift, forklift/basket, orother device capable of pr

40、oviding means to ascend to the proper elevation and provide a stable and safe working environment.6.6 The free fall may be induced by manual or automatic means, and shall accomplish an unobstructed, continuous free fall ofthe test weight torso.6.7 The instrumentation used to measure the MAF of the F

41、AS should consist of a force sensor or load cell capable of measuringpeak loads up to 3375 lb (15 kN). The recording data channel shall have a minimum sampling rate of 1000 samples per secondand an active frequency response band up to a corner frequency of 100 Hz + 1.2 dB, 3 dB.7. Performance Test P

42、rocedure7.1 The following procedures shall apply to one individual unit of a given FAS with the test torso as given in 6.3 dropped “feetfirst.”7.1.1 Read instructions accompanying the test subject to ascertain the proper procedure for use and donning. Secure the FASanchorage to the mounting pole and

43、 the test torso in accordance with the device manufacturers instructions.F2337 1837.1.2 The force sensor or load cell shall be placed in series with the full body harness and lanyard or anchorage. The total falldistance required is a distance of 6 ft or twice the maximum lanyard length or whichever

44、is less. Any length added from the forcesensor or load cell and any connecting hardware must be subtracted from the total fall distance.7.1.3 Prior to performing the drop test, the anchorage shall be properly secured with a permanent stop placed directly under theanchorage to the backside of the pol

45、e to eliminate movement during test.7.1.4 Attach the quick release mechanism to the test weight torso. The test weight torso shall be raised to an elevation such thatits free fall begins at the point above the anchorage equal to the maximum length of the lanyard (if adjustable) or a distance whichal

46、lows 6 ft of free fall, whichever is less. The test weight torso shall be located as close to the pole as practical or not greater than1 ft with no tension in the lanyard prior to release. In such a manner, the free-fall distance will equal twice the maximum availablelength or 6 ft, whichever is les

47、s.7.1.5 The test weight torso shall be dropped “feet first” or otherwise 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 closely observed forany unusual or unsafe action. Measure a

48、nd record the maximum arrest force (MAF), deceleration distance, and whether or not anytest weight torso detaches from the harness. After the drop, the test weight torso is to remain suspended by the FAS for a periodof 2 min.7.1.6 After the FAS has been engaged, the test weight torso shall be lowere

49、d to the ground and the FAS inspected for damage.Compare test results to the requirements set forth in 12.1 12.3.7.2 The following procedures shall apply to one individual unit of a given FAS with the test weight torso as given in 6.3 dropped“face first.”7.2.1 Read instructions accompanying the test subject to ascertain the proper procedure for use and donning. Secure the FASanchorage to the mounting pole and the test weight torso in accordance with the device manufacturers instructions.7.2.2 The total fall distance required is a distance