ASTM F2684-2007 Standard Test Method for Portable High Anchor Devices《便携式高锚具用标准试验方法》.pdf

1、Designation: F 2684 07Standard Test Method forPortable High Anchor Devices1This standard is issued under the fixed designation F 2684; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A number in parenthes

2、es 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 applies to portable high anchor devicesthat may be used by rescue personnel during both trainingexercises and actual rescue operations.1

3、.2 This test method covers two mechanical tests, the StaticLoad Test and the Load Test for Failure.1.3 Tests contained herein are destructive in nature. Portablehigh anchor devices subjected to any of these tests shall not beused in any way after testing except in evaluating the results ofsuch testi

4、ng.1.4 The values stated in SI units are to be regarded as thestandard.1.5 This specification does not imply approval of anymethod of use of portable high anchor devices. In addition, thetests described are laboratory tests and do not duplicate fieldconditions. Furthermore, the test load values cont

5、ained hereinare not to be interpreted as the forces which a portable highanchor device may be subjected to, or may be expected tosustain, in actual field use.1.6 See Section 6 on Hazards for safety warning.2. Referenced Documents2.1 ANSI Standard:2Z359.1-2007 American National Standard Safety Requir

6、e-ments for Personal Fall Arrest Systems, Subsystems andComponents3. Terminology3.1 Definitions:3.1.1 portable high anchor, na manufactured device de-signed to support human loads. Examples include, but are notlimited to; davits, A-frames, tripods, quadpods and cantile-vered devices.4. Significance

7、and Use4.1 Static Load TestThis test verifies that the portablehigh anchor device can support the design load withoutpermanent deformation and continue to function in a safemanner.4.2 Load Test for FailureThis test determines the force atwhich the portable high anchor device fails.5. Apparatus5.1 Fo

8、r both tests, the portable high anchor device shall bepositioned on a flat concrete surface in the manner described bythe manufacturers instructions for use.5.1.1 Where portable high anchor devices are designed to beaffixed to a base or structural member that is not part of thedevice, the manufactur

9、er shall provide a test base that mostclosely resembles the structural element to which the device isdesigned to be affixed. This test base shall be completely stableand shall be permitted to be bolted down to prevent movementduring the test.5.1.2 Portable high anchors designed to be attached toflan

10、ged rims of vessel openings would require a test base tosimulate the flanged portal to which the device is designed tobe affixed.5.1.3 Portable high anchors such as beam clamps that aredesigned to be attached to a structural element would require acompatible section of the beam to which the device i

11、s designedto be affixed.6. Hazards6.1 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 applicabil-ity of regulatory limita

12、tions prior to use.7. Sampling, Test Specimens, and Test Units7.1 Two samples of each model of portable high anchordevice shall be required.7.1.1 Samples of each model of each portable high anchordevice shall be selected randomly for testing.1This test method is under the jurisdiction of ASTM Commit

13、tee F32 on Searchand Rescue and is the direct responsibility of Subcommittee F32.01 on Equipment,Testing, and Maintenance.Current edition approved Nov. 1, 2007. Published December 2007.2Available from American National Standards Institute (ANSI), 25 W. 43rd St.,4th Floor, New York, NY 10036, http:/w

14、ww.ansi.org.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.7.1.2 Test samples shall be new and in an unused conditionand shall conform in all respects to the manufacturers speci-fications for the model to be tested.8. Procedure8.1 T

15、esting Set-Up8.1.1 The device shall be positioned according to manufac-turers instructions with all surface contact points securelyseated before testing.8.1.2 The device shall not be bolted, tied off, or affixed tothe test base in any way unless required by the manufacturerfor normal use.8.1.3 The d

16、evice shall be positioned as required in thelowest strength configuration of the device as specified by themanufacturer.8.1.3.1 In most cases, the portable high anchor device willbe weakest at its greatest (or highest) extension. However,many devices have multiple ways they can be used. Differentrig

17、ging configurations may be stronger or weaker than others.It is intended that the testing be done in the configurationspecified in the manufacturers instructions that would yieldthe lowest strength results.8.1.4 For all tests, the device shall be attached to the testmachine at the load-bearing conne

18、cting point, in accordancewith the manufacturers instructions for use, with a suitablelocking carabiner or other connector.8.1.5 For all tests, all adjuncts designed by the manufacturerto be used in conjunction with the device, including but notlimited to ropes, chains, webbing, rope grabs, and bolt

19、s, shallbe in place.8.1.6 Each point of contact with the test surface shall bemarked in some manner to allow the ability to measuremovement of the base during the test.8.1.7 When testing davits or other cantilevered devices, theload-bearing connection point may move as the device deflects.Make provi

20、sions to keep the application of force verticalthoughout the test.8.1.7.1 For example, applying force with a hydraulic cylin-der attached to a traveler on an “I” beam secured to the testbase in line with the deflection.8.2 Static Load Test8.2.1 The Static Load Test shall be set up as specified in 8.

21、1.8.2.2 A force shall be applied to the portable high anchordevice at a rate of 25 6 5 mm/min (1 6 0.2 in./min), increasingto a minimum load of at least 22.3 kN (5013 lbf).8.2.3 The force shall be held for 30 6 1.0 s, and then thetension shall be completely released over a maximum of 1 min.8.2.4 The

22、 force shall be reapplied immediately and shall beincreased to the same maximum force as previously exertedand held for 5 min 6 10.0 s before release.8.2.5 At the conclusion of the Static Load Test described in8.2, the sample portable high anchor device shall be inspectedto determine pass/fail. A po

23、rtable high anchor device shall beconsidered to fail if any of the following are observed:8.2.5.1 If any of the load-bearing members remain deflectedby more than 1 % of the length of the member from theiroriginal position.8.2.5.2 If there is any cracking or breaking visible to theunaided eye.8.2.5.3

24、 If an adjustment or moving part becomes nonfunc-tional.8.2.5.4 If any base contact point deviates by more than 150mm (6 in.) from its original position.8.2.5.5 Where there are multiple load-bearing connectionpoints, the Static Load Test shall be repeated for each load-bearing connection point, or c

25、ombination of load-bearingconnection points, specified in the manufacturers instructions.8.3 Load Test for Failure8.3.1 The Load Test for Failure shall be set up as specifiedin 8.1.8.3.2 The load-bearing connecting point used shall providethe lowest strength configuration of the device, as specified

26、 bythe manufacturer.8.3.3 Force shall be applied to the portable high anchordevice at a rate of 25 6 5 mm/min (1 6 0.2 in./min) increasinguntil the failure point of the device.8.3.4 A portable high anchor device shall be considered tofail when any of the load-bearing members fracture, collapse,or if

27、 any condition exists that causes a failure to support theload.9. Report9.1 Static Load Test9.1.1 The configuration of the attachment of the device tothe testing machine shall be reported.9.1.2 The deflection of load-bearing members shall bereported.9.1.3 The functionality of adjustment and moving p

28、artsshall be reported.9.1.4 Where applicable, the movement of base contactpoints from their original position shall be reported.9.1.5 Any fracture or deformation of the load-bearing mem-bers shall be reported.9.2 Load Test for Failure9.2.1 The configuration of the attachment of the device tothe test

29、ing machine shall be recorded and reported.9.2.2 The maximum force applied before any fracture,collapse, or any other condition that causes a failure to supportthe load, for each test, shall be reported.10. Precision and Bias10.1 PrecisionIt is not practical to specify the precision ofTest Method F

30、2684 because insufficient laboratory or inter-laboratory data exists at this time.10.2 BiasNo information can be presented on the bias ofTest Method F 2684 because no material having an acceptedreference value is available.11. Keywords11.1 davit; portable high anchor device; tripodF2684072APPENDIX(N

31、onmandatory Information)X1. RATIONALEX1.1 22.3 kN (5013 lbf) meets the load requirements foranchorage connectors in ANSI Z359.1-2007.ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standar

32、d are expressly advised that determination of the validity of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif

33、not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, whic

34、h you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org).F2684073