ASTM F2337-2016 Standard Test Method for Treestand Fall Arrest System《树椅防坠落系统的标准试验方法》.pdf

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1、Designation: F2337 11F2337 16 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 and health practices and determine the applicability of regulatorylimitations prior to use.2. Referenced Documents2.1 ASTM Standards:2F1749 Specification for Fitness Equipment and Fitness Facility Safety Signage and Labels2.2 ANSI Standard:ANSI Z359.1 Safety Requi

6、rements 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 Definitions:3.2.1 anchorage, na component/structure to whic

7、h a FBH is attached to the tree trunk.3.2.2 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 so

8、forth, or during ascent/descent of tree or ladder. A FBH may be constructed to additionally serve this function.3.2.3 connecting hardware, nincludes snap hooks, D-rings, carabineers, links, anchorage hardware, and buckles. Anyhardware that connects the FAS components in series, thus creating a linea

9、r linkage along which the maximum arrest force (MAF)acts.3.2.4 fall arrest system (FAS), na system which is assembled for the purpose of arresting an accidental fall of its user. A FASconsists of a full body harness, lanyard, anchorage means, and connecting hardware.3.2.5 full body harness (FBH), na

10、 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 components or subsystems.1 This test method is under the

11、jurisdiction ofASTM Committee F08 on Sports Equipment, Playing Surfaces, and Facilities and is the direct responsibility of SubcommitteeF08.18 on Treestands.Current edition approved June 1, 2011Oct. 1, 2016. Published July 2011November 2016. Originally approved in 2003. Last previous edition approve

12、d in 20102011 asF2337 10.F2337 11. DOI: 10.1520/F2337-11.10.1520/F2337-16.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the

13、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 and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Becauseit

14、 may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current versionof the standard as published by ASTM is to be considered the official document.Copyright ASTM International, 100 Barr H

15、arbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States13.2.6 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.3.2.7 maximum arrest force, nthe maximum force acting on the body a

16、t 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 of a persons weight on the lower extremities if suspended in a harness,or allow the us

17、er to descend to the ground.The device is to help maintain circulation in the legs and help prevent suspension trauma(blood pooling).3.2.10 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

18、upper part of the thigh.3.2.11 treestand, na device designed to be affixed to a tree or its branches so as to permit an individual to sit or stand thereonfor the purpose of attaining an elevated position from which to observe, photograph, or hunt.4. Summary of Test Method4.1 One system test shall co

19、nsist 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 system unit for performance in accordance with theprocedures in 7.2.4.3 One system test

20、 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 (for use only if FAS includes integral climbingbelt) in accordance with the procedures

21、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 static load test shall consist of testing one (1) individual Suspension Relief Device

22、(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 strength on treestand FAS and componentsor subsystems. This test is intended for program

23、 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 test weight torso and fall arrest system (FAS) such that poledeflection is minimized du

24、ring 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 the performance test shall weigh 220 6 2 lb. The test weight torso shall be in accorda

25、ncewith 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 subject 63 lb, or whichever is greater. The torso shall also be designed such that it c

26、loselyresembles 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 providing means to ascend to the proper elevation and provide a stable and safe working

27、 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 FAS should consist of a force sensor or load cell capable of measuringpeak loads up to

28、 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 Procedure7.1 The following procedures shall apply to one individual unit of a given FA

29、S 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 the test torso in accordance with the device manufacturers instructions.F2337 1627.1

30、.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 is less. Any length added from the forcesensor or load cell and any connecting hardwa

31、re 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 pole to eliminate movement during test.7.1.4 Attach the quick release mechanism to the t

32、est 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 whichallows 6 ft of free fall, whichever is less. The test weight torso shall be located as

33、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 less.7.1.5 The test weight torso shall be dropped “feet first” or otherwise released as

34、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 and record the maximum arrest force (MAF), deceleration distance, and whether or not a

35、nytest 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 lowered to the ground and the FAS inspected for damage.Compare test results to the requirem

36、ents 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 FASanchora

37、ge 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 of 6 ft or twice the maximum lanyard length, or whichever is less.Any addedlength from any connecting hardware must be subtracted from the t

38、otal fall distance.7.2.3 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 pole to eliminate movement during test.7.2.4 Attach the quick release mechanism to the test weight torso at a point loca

39、ted at the buttocks or other means of attachmentthat will allow the test torso to be released appropriately. The test weight torso shall be raised to an elevation such that its free-fallbegins at the point above the anchorage equal to the maximum length of the lanyard (if adjustable) or a distance w

40、hich allows 6ft of free fall, whichever is less. The test weight torso shall be located as close to the pole as practical or not greater than 1 ft withno tension in the lanyard prior to release. In such a manner, the free-fall distance will equal twice the maximum available lengthor 6 ft, whichever

41、is less.7.2.5 The test weight torso shall be dropped “face 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. Det

42、ermine whether or not any test torso detaches from the harness. After the drop, the test weighttorso is to remain suspended by the FAS for a period of 2 min.7.2.6 After the FAS has been engaged, the test weight torso shall be lowered to the ground and the FAS inspected for damage.Compare test result

43、s to the requirements set forth in 12.1 and 12.2.8. Dynamic Strength Test Procedure8.1 The following procedures shall apply to one individual unit of a given FAS and test weight torso as given in 6.4 and dropped“feet first.”8.1.1 Read instructions accompanying the test subject to ascertain the prope

44、r procedure for use and donning. Secure the FASto the mounting pole and the test weight torso in accordance with the device manufacturers instructions.8.1.2 Prior to performing the drop test, the anchorage shall be properly secured with a permanent stop placed directly under theanchorage to the back

45、side of pole to eliminate movement during test.8.1.3 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 available by the lanyard or a distance wh

46、ichallows 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 availablelanyard length or 6 ft, whi

47、chever is less.8.1.4 Release the test weight torso using the quick release mechanism. The test weight torso shall be dropped “feet first” orotherwise released as if to simulate a free-fall from a treestand platform. The fall should be essentially vertical with minimal“swinging” of the test subject.

48、The fall shall be closely observed for any unusual or unsafe action. After the drop, the test weighttorso is to remain suspended by the FAS for a period of 2 min.8.1.5 After the FAS has been engaged, the test weight torso shall be lowered to the ground and the FAS inspected for damage.Record the tes

49、t results and whether or not the test weight torso detaches from the FBH. Compare the test results to the requirementsset forth in 12.412.1.F2337 1639. Climbing Belt Test ProcedureNOTE 1For use only if FAS includes integral climbing belt.9.1 The following procedures shall apply to one individual unit of a given FAS with climbing belt (if provided) and test weighttorso as given in 6.4 dropped “feet first.”9.1.1 Read instructions accompanying the test subject to ascertain the proper procedure for use and donning. Secure the FASto the mounting pole and the tes