1、Designation: F 2416 06e1An American National StandardStandard Specification forProtective Headgear Used in Electric Personal AssistiveMobility Devices1This standard is issued under the fixed designation F 2416; the number immediately following the designation indicates the year oforiginal adoption o
2、r, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.e1NOTEFig. 1 was editorially corrected in October 2006.1. Scope*1.1 This specification co
3、vers performance requirements forhelmets manufactured for users of electric personal assistivemobility devices.1.2 All testing and requirements of this specification shallbe in accordance with Test Methods F 1446, except wherenoted in this specification.1.3 Partial utilization of this specification
4、is prohibited. Anystatement of compliance with this specification shall be acertification that the product meets all of the requirements ofthe specification in its entirety. A product that fails to meet anyone of the requirements of this specification is considered tohave failed the specification an
5、d should not be sold with anyindication that it meets parts of the specification.2. Referenced Documents2.1 ASTM Standards:2F 1446 Test Methods for Equipment and Procedures Usedin Evaluating the Performance Characteristics of ProtectiveHeadgear3. Terminology3.1 Definitions of Terms Specific to This
6、Standard:3.1.1 electric personal assistive mobility device,nelectrically-driven wheeled device for personal mobilitywith a speed limited to no more than 22.5 kph (14 mph).4. Headforms4.1 Headforms to be used in this specification are asspecified in Test Methods F 1446. The appropriate size head-form
7、 shall be selected for the helmet to be tested as specifiedin Test Methods F 1446.5. Anvils and Impact Velocities5.1 Anvils to be used for impact tests in this specificationare the flat, hemispherical, and curbstone anvils described inTest Methods F 1446.5.2 The helmet shall be dropped onto the flat
8、 anvil toachieve an impact velocity of 6.2 m/s.5.3 The helmet shall be dropped onto the hemispherical andcurbstone anvils to achieve an impact velocity of 4.8 m/s.5.4 The impact velocity shall be measured during the last 40mm of free-fall for each test and shall be within 63 % of thevelocities speci
9、fied in 5.2 and 5.3.6. Marking the Test Line (Area of Required Coverage)6.1 The test line is shown in Fig. 1 and shall be marked inaccordance with Test Methods F 1446.7. Conditioning, Number of Samples, and LaboratoryEnvironment7.1 The test normally requires eight samples of each shell/liner combina
10、tion.7.2 Conditioning of the samples to be tested is described inTest Methods F 1446.8. Retention System Testing8.1 The ambient helmet shall be subjected to the positionalstability (roll-off) test in accordance with Test Methods F 1446,usinga4kgdrop mass from a height of 0.6 m.8.2 The hot, cold, and
11、 wet helmets shall be subjected to thedynamic strength retention test in accordance with Test Meth-ods F 1446, usinga4kgdrop mass from a height of 0.6 m. Theretention system shall remain intact without elongating morethan 30 mm.8.3 Retention system testing shall be completed prior toimpact testing.9
12、. Impact Sites and Projections9.1 Impact sites are described in Test Methods F 1446.9.2 ProjectionsAny unfaired projection extending morethan 7 mm from the helmets outer surface shall break away orcollapse when impacted with forces equivalent to those pro-duced by applicable impact-attenuation tests
13、 in Section 5.1This specification is under the jurisdiction of ASTM Committee F08 on SportsEquipment and Facilities and is the direct responsibility of Subcommittee F08.53 onHeadgear and Helmets.Current edition approved May 1, 2006. Published May 2006. Originallyapproved in 2004. Last previous editi
14、on approved in 2004 as F 2416 04.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.1*A Summary of Changes secti
15、on appears at the end of this standard.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.There shall be no fixture on the helmets inner surfaceprojecting more than 2 mm into the helmet interior exceptoccipital stabilizers and foam fit p
16、ads.10. Impacting Schedule10.1 All impacting shall be performed in accordance withTest Methods F 1446.10.2 Helmets shall be impacted with the anvils centered onor above the test line described in Section 6.10.3 The test anvils can be oriented in any horizontal,centered position.10.4 One each hot, co
17、ld, wet, and ambient helmet shall beimpacted using the flat and hemispherical anvils only.10.5 The curbstone anvil shall be used to impact one timeeach of the second set of four samples, one conditioned undereach of the four conditioning environments.11. Peak Acceleration Requirements11.1 The peak a
18、cceleration (g, max) of the impulse duringthe impact shall be measured with equipment described in TestMethods F 1446.11.2 The peak acceleration of any impact shall not exceed300 g.12. Labels and Warnings12.1 In addition to the labeling requirements outlined in TestMethods F 1446, the helmet shall h
19、ave one of the followinginscriptions on an interior permanent label: For use whileoperating an electric personal assistive mobility device forrecreational or other use at speeds not to exceed 14 mph.13. Keywords13.1 electric personal assistive mobility device; helmet;protective headgearNOTEThe cente
20、r of impact can be anywhere on or above the test line.FIG. 1 Marking the Test LineHeadformSizeDimensionXL/2 Y RSTA 24.0 88.0 89.7 47.5 7.0 142.0E 26.0 94.5 96.0 49.0 8.0 151.0J 27.5 101.0 102.5 50.5 8.0 160.0M 29.0 106.0 107.0 52.0 8.0 166.0O 30.0 108.5 110.0 53.0 9.0 170.0F241606e12SUMMARY OF CHANG
21、ESCommittee F08 has identified the location of selected changes to this standard since the last issue, F 2416 04,that may impact the use of this standard. (Approved May 1, 2006.)(1) Revised Fig. 1.ASTM International takes no position respecting the validity of any patent rights asserted in connectio
22、n with any item mentionedin this standard. Users of this standard 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
23、technical committee and must be reviewed every five years andif 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 consid
24、eration at a meeting of theresponsible technical committee, which 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 Bar
25、r 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).F241606e13
