ASTM F717-1989(2006) Standard Specification for Football Helmets《橄榄球运动员的头盔》.pdf

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1、Designation: F 717 89 (Reapproved 2006)An American National StandardStandard Specification forFootball Helmets1This standard is issued under the fixed designation F 717; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of l

2、ast revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.INTRODUCTIONThis specification addresses shock absorption requirements of football helmets. The accelerationlimits described herei

3、n were guided by the state-of-the-art technology concerning mechanisms andtolerance of head injury and by the performance of current football helmets, and should not be usedas limitations for human tolerance or as limits of acceptance for other test procedures.In addition to the minimum performance

4、tests and inspection procedures described, it is the intentof this specification that the same acceleration limits apply for velocities lower than that required inthe impact test, and at all helmet locations above the reference plane.Other intentions that were not amenable to testing or inspection a

5、re offered as guidelines: (1) thechin strap and cup should be attached to the helmet in a manner to enable the helmet to remain in itsnormal position on the wearers head during play and impact conditions; (2) the physicalcharacteristics of materials used in construction of the helmet should retain t

6、heir shock-absorbingcharacteristics under the influence of aging, use, or exposure to typical environmental conditions.1. Scope1.1 This specification covers new and reconditioned footballhelmets intended for use in competitive play and practice withparticular reference to shock attenuation requireme

7、nts.1.2 This specification establishes shock absorption require-ments of complete helmets when tested in accordance with TestMethod F 429 and establishes requirements for construction,materials, visibility, and labeling.2. Referenced Documents2.1 ASTM Standards:2F 429 Test Method for Shock-Attenuati

8、on Characteristics ofProtective Headgear for Football3. Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 reference indexthe manufacturers recommendeddimension from the lowest point of the helmet face opening tothe basic plane of a reference headform, both points located onthe medi

9、an plane of the helmet.3.2 For descriptions of other terms used in this specification,refer to Test Method F 429.4. Materials and Manufacture4.1 The materials used in those parts of the helmet whichcontact the head shall not be of a type known to cause irritationor disease. Paints, glues, and finish

10、es used in manufacture shallbe compatible with materials used in the helmet shell andshock absorption system.4.2 The helmet, as tested, shall have no rigid externalprojections greater than116 in. (1.6 mm) in height, except forfaceguard; chin strap, nose bumper, or sweatband hardware.Any faceguards o

11、r faceguard hardware installed on the helmetmust be removed prior to testing.4.2.1 All allowable external projections shall be smooth androunded so as to minimize the potential of injury.4.3 Any internal rigid projections that can contact thewearers head during impact shall be protected by some mean

12、sof cushioning or force spreading.4.4 The helmet shall provide peripheral vision clearance ofat least 105 to each side of the median plane when the helmetis adjusted to the reference headform with the reference index.5. Impact Requirements5.1 Each helmet model presented for impact testing shall befu

13、rnished with a reference index (see 3.1.1) as established bythe helmet manufacturer. This reference index shall be usedduring reference marking as described in the Test Proceduressection (portion on Reference Marking) of Test Method F 429.1This specification is under the jurisdiction of ASTM Committ

14、ee F08 on SportsEquipment and Facilities and is the direct responsibility of Subcommittee F08.53 onHeadgear and Helmets.Current edition approved Nov. 1, 2006. Published December 2006. Originallyapproved in 1981. Last previous edition approved in 2000 as F 717 89 (2000).2For referenced ASTM standards

15、, 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.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19

16、428-2959, United States.5.2 Each helmet tested in compliance to Test Method F 429shall meet the following requirements:5.2.1 In accordance with Test Method F 429 (Test Proce-dures section, portion on Multiple Impacts), the average gmaxof each set of three impacts delivered to six test locations perh

17、elmet shall not exceed 275 g. For the additional three impactsdelivered to the two test locations with the highest mean gmax,no single impact shall have a gmaxthat exceeds 300 g.5.2.2 In accordance with Test Method F 429 (Test Proce-dures section, portion on Multiple Impacts), for helmetsexposed to

18、high and low temperatures and to water immersionat the two required test locations, no single impact shall havea gmaxthat exceeds 300 g.5.3 Internal shock-absorbing components of the helmetshall not become detached or loose during impact tests or showpermanent deformation or physical damage.5.4 A te

19、st report of impact tests as described in the ReportSection of Test Method F 429 shall be an integral part of thisspecification.6. Product Marking and Labeling6.1 Each helmet shall be provided with instructions forproper sizing and adjustment.6.2 Each helmet shall be permanently labeled with thefoll

20、owing items:6.2.1 Identification of the manufacturer. If the helmet hasbeen reconditioned, the identification of the reconditioner shallalso be included.6.2.2 Uncoded date of manufacture. If reconditioned, dateof reconditioning shall also be included.6.2.3 Model designation.6.2.4 Size or size range.

21、6.2.5 Warning concerning improper cleaning agents andpaints.6.3 In addition to the helmet requirements of 6.2, the usershall be provided with a warning on a permanent labelconcerning improper attachment or application of hardware,such as face masks, that would compromise the shock-absorbing abilitie

22、s of the helmet.ASTM International takes no position respecting the validity of any patent rights asserted in connection 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

23、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 not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for ad

24、ditional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration 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

25、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).F 717 89 (2006)2