1、Designation: F2439 171An American National StandardStandard Specification forHeadgear Used in Soccer1This standard is issued under the fixed designation F2439; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revisi
2、on. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1NOTEEditorially corrected 9.2.2 in November 2017.INTRODUCTIONSoccer is a sport with inherent risks. Participation in the sport implies accep
3、tance of risk of injury.This specification was developed to address forces of some of the incidental (non-ball) head impactsthat may occur while engaging in soccer. Although headgear satisfying this specification may providelimited protection against heading impacts which are generally sub-concussiv
4、e, heading impacts arenot addressed by this specification. In addition, the issue of multiple sub-concussive impacts is notaddressed here. NoteProtection provided by headgear satisfying this specification is not equivalent tothe protection provided by rigid “helmets” used in many other sports activi
5、ties. Headgear that meetsthese standard specifications may not provide significant protection in some head impact situations.This specification is intended to be used with other standards and documents listed in theReferenced Documents.1. Scope1.1 This specification defines performance requirements
6、forheadgear used for participation in the sport of soccer. Thetechnical requirements in this specification do not address theadministrative requirements of soccer governing bodies, so itshould not be assumed that any headgear satisfying thisspecification will be acceptable for use in sanctioned socc
7、erevents.1.2 This specification is intended to reduce the forces fromexternal physical sources reaching the defined impact area ofthe head in impacts that may occur in the sport of soccer. Noheadgear can provide protection against all impacts, foresee-able or not. This specification does not address
8、 the potential forinjury from any type of impact. The tests specified in thisspecification are laboratory simulation tests only, and do notpurport to create situations identical to the impacts that mayoccur during the playing of soccer.1.3 All testing and requirements of this specification shallbe i
9、n accordance with Test Methods F1446, except where notedherein. In the event of a discrepancy between the requirementsof this specification and those of Test Methods F1446, thisspecification shall prevail.1.4 Partial utilization of this specification is prohibited. Anystatement of compliance with th
10、is specification shall be acertification that the headgear meets all of the requirements ofthis specification in its entirety. Headgear that fails to meet anyone of the requirements of this specification is considered tohave failed the specification and should not be sold with anyindication that it
11、meets parts of the specification.1.5 The values stated in SI units are to be regarded as thestandard.1.6 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, health
12、, and environmental practices and deter-mine the applicability of regulatory limitations prior to use.1.7 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of Internatio
13、nal Standards, Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:2F1446 Test Methods for Equipment and Procedures Used in1This specification is under the jurisdiction of ASTM Committee F08 on Sports
14、Equipment, Playing Surfaces, and Facilities and is the direct responsibility ofSubcommittee F08.53 on Headgear and Helmets.Current edition approved Sept. 1, 2017. Published October 2017. Originallyapproved in 2006. Last previous edition approved in 2016 as F2439 06 (2016).DOI: 10.1520/F2439-17E01.2F
15、or 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.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C70
16、0, West Conshohocken, PA 19428-2959. United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recommendations issued by the Wo
17、rld Trade Organization Technical Barriers to Trade (TBT) Committee.1Evaluating the Performance Characteristics of ProtectiveHeadgear2.2 Other Documents:349 CFR Part 572, Subpart E Anthropometric Test DummiesProcedures for Assembly, Disassembly, and Inspection(PADI) of the Hybrid III 50th Percentile
18、Dummys NineAccelerometer Array Head (NAAH) with RedundantHead C. G. Accelerometers3. Terminology3.1 Definitions:3.1.1 impact areathe region of the headform within whichthe center of each impact footprint must fall. F14464. Significance and Use4.1 The purpose of this specification is to provide relia
19、bleand repeatable test methods for the evaluation of headgear forsoccer. Headgear satisfying this specification is intended toreduce forces reaching the head in some of the impacts thatmay occur in soccer.5. Apparatus5.1 Apparatus used for this testing shall be in accordancewith Test Methods F1446 e
20、xcept as noted herein.5.2 Test HeadformsTest headforms used with this speci-fication shall be the 50th percentile Hybrid III adult male headand neck assembly, including the upper and lower neckadjusting brackets and all associated hardware. The equipmentshall be as defined in the United States of Am
21、erica Code ofFederal Regulations (49 CFR Part 572, Subpart E). A completelisting of all parts and components which make up the head andneck assembly is found in Appendix X1; see also Proceduresfor Assembly, Disassembly, and Inspection (PADI) of theHybrid III 50th Percentile Dummys NineAccelerometerA
22、rrayHead (NAAH) with Redundant Head C.G. Accelerometers.5.2.1 The test headform shall be mounted to a standardmonorail or twin-wire system or similar system, as shown inTest Methods F1446. Mass of the entire drop system shall be8.8 kg 6 5 % (19.4 lb 6 5 %). Accelerometer instrumentationshall be inst
23、alled into the test headform to measure resultantlinear accelerations of the test headform as specified in thesection on Accelerometer of Test Methods F1446.5.2.2 The headform center of gravity shall fall within 5 ofthe vertical axis through the point of impact when the testheadform assembly is in t
24、he impact position, as described inthe Appendix of Test Methods F1446.5.3 Steel Post AnvilThe steel post anvil used in thisspecification is to represent a nominal 7.62 cm (3 in.) diametersteel post. The anvil shall consist of a 7.62 cm (3 in.) diametersteel bar (65 %) that is welded (or securely att
25、ached tosimilarly minimize vibration between the bar and the plate) ina horizontal position to a steel plate.5.4 Headform AnvilThe headform anvil is a 50th percen-tile Hybrid III headform and neck assembly as defined in 5.2.The headform anvil shall be oriented such that the forehead isin an upright
26、target position. The lower neck bracket shall bemounted to a rigid structure. The headform anvil shall bepositioned such that the only impact between the drop head-form and the impact anvil is at the selected impact location,with no other parts of the headform and anvil coming intocontact with each
27、other during the initial impact. The headformanvil need not be instrumented.5.5 MEP AnvilThe MEP anvil shall be as defined in thesection on Modular Elastomer Programmer (MEP) of TestMethods F1446. The MEP anvil shall be positioned with itsupper surface horizontal, such that the only impact between t
28、hedrop headform and the impact anvil is at the selected impactlocation, with no other parts of the headform and anvil cominginto contact with each other during the initial impact.6. Equipment Calibration and System Checks6.1 Instrumentation used in testing shall be calibrated ac-cording to the requi
29、rements of Test Methods F1446 and 49CFR Part 572, Subpart E.6.2 The 50th percentile Hybrid III adult male test headformused with this specification shall pass a system check accordingto the procedures described in Appendix X2. Duration of thesystem check cycle shall be no more than 12 months.6.3 Ins
30、trumentation System CheckThe system instrumen-tation shall be checked before and after each series of tests bydropping the Hybrid III head and neck assembly (see 5.2) ontothe MEP pad (see section on Modular Elastomer Programmer(MEP) of Test Methods F1446 ) at an impact velocity of 2.8m/s 6 2 %. The
31、head and neck assembly shall be oriented suchthat the neck of the Hybrid III headform is at a 24 6 1downward angle relative to the horizontal and the foreheadshall contact the center of the MEP pad. The peak accelerationobtained during this impact shall be 112 6 8 g. Three suchimpacts at intervals o
32、f 75 6 15 s shall be performed before andafter each series of tests. If the average peak accelerationobtained in the pretest impacts differs by more than 5 % fromthe average peak acceleration obtained in the post test impacts,recalibration of the instruments and transducers must be carriedout, and a
33、ll data obtained during that series of impact tests shallbe discarded.7. Samples for Testing7.1 Conditions and AttachmentsHeadgear shall be testedcomplete, in the condition as offered for sale. They must satisfyall requirements of this specification with or without anyincluded attachments.7.2 Number
34、 of SamplesA test series requires 12 samplesof each size headgear and shall be tested according to thefollowing schedule (see Table 1).8. Conditioning Requirements8.1 Ambient ConditionFour samples of each size headgearshall be conditioned at the ambient condition defined in ASTMTest Methods F1446.8.
35、2 Low TemperatureThree samples of each size headgearshall be conditioned at the low temperature conditions asdefined in Test Methods F1446.3Available from National Highway Traffic Safety Administration (NHTSA), 4007th St., NW, Washington, DC 20590.F2439 17128.3 High TemperatureThree samples of each
36、size head-gear shall be conditioned at the high temperature conditions asdefined in Test Methods F1446.8.4 Water ImmersionThree samples of each size headgearshall be conditioned at the water immersion conditions asdefined in Test Methods F1446.8.5 Testing of conditioned samples must occur within 10m
37、in after removal of the sample from the conditioning envi-ronment. If a sample is out of the conditioning environment formore than 10 min, it shall be reconditioned 3 min for eachminute beyond 10 min that it is out of the environment, up toa maximum of 4 h.9. Test Schedule and Procedures9.1 Construc
38、tion and Materials:9.1.1 ProjectionsThere can be no rigid projections, hardor sharp surfaces, or hard or sharp edges on any part or surfaceof the headgear. Non-rigid projections can project no more than5 mm (0.20 in.) from the primary impact surface of theheadgear, must collapse under a static load
39、of 2.27 kg (5 lb) 610 %, and must be faired with the base surface of the headgear.Any rigid or semi-rigid materials used in the headgear must bepadded sufficiently so that they satisfy all requirements of thisspecification.9.1.2 MaterialsMaterials known to cause skin irritation ordisease shall not b
40、e used in the headgear. Comfort padding, ifused, may be detachable for cleaning. If chemicals such ashydrocarbons, cleaning fluids, paints, or transfers and otheradditions will affect the headgear adversely, a warning to thiseffect shall be provided.9.2 LabelingEach headgear shall be marked in such
41、a waythat the following information is easily legible by the user andis likely to remain legible throughout the life of the headgear.The first five items in the following list must be physicallyattached to the headgear; other items may be explained on thepackaging or instructions that accompany the
42、headgear, orboth.9.2.1 Model designation, if appropriate.9.2.2 Name and contact information of manufacturer (web-site address is sufficient).9.2.3 A label that warns the user that no headgear canprotect against all foreseeable impacts, and that for maximumprotection, the headgear must be fitted and
43、attached properly tothe wearers head in accordance with the manufacturers fittinginstructions.9.2.4 A statement that this headgear satisfies the require-ments of ASTM Specification F2439.9.2.5 A statement that this headgear is intended to reducehead impact forces while playing soccer, and shall not
44、be usedas head protection for other activities.9.2.6 A statement warning the user that the headgear can bedamaged by contact with common substances, for example,certain solvents, cleaners, and so forth, and that this damagemay not be visible to the user. The label should also list anyrecommended cle
45、aning agents or procedures, or both.9.3 Marking the Impact AreaThe impact area is an angledband encircling the entire head, 50 mm (2.0 in.) 610 % inlinear height. Using a 50th percentile male Hybrid III head andneck assembly, place the test headform in an orientation suchthat the base of the skull i
46、s horizontal (see Fig. 1). Draw a line25 mm (1.0 in.) above the design cg of the Hybrid III testheadform and parallel to the base of the skull and define thisline as AA. Point A is the intersection of the line AA and thefront profile of the test headform. Using point A as a guide,draw a line AB that
47、 is angled 12 downward to the rear of thetest headform (relative to point A). Draw a line CD that is 50mm (2.0 in.) above and parallel to the line AB. The areaincluded within the region ABCD shall be defined as theimpact area.9.4 Shock Attenuation Impact Tests:9.4.1 Prior to impact testing, conduct
48、the instrumentationsystem check (see 6.3).9.4.2 The anvils to be used for impact tests in this specifi-cation are a headform anvil, a steel post anvil, and an MEP pad(to simulate impact on the ground).9.4.3 Place the headgear to be tested on the test headform inaccordance with the manufacturers inst
49、ructions prior to test-ing.9.4.4 With the headgear placed on the headform in accor-dance with the manufacturers instructions, the headgear maybe impacted anywhere within the impact area. Coverage neednot be continuous within the impact area, as long as the impacttests provide satisfactory results in accordance with thisspecification.9.4.5 One impact shall be conducted at one test location oneach sample headgear unless otherwise specified. There shallbe no overlap of impact footprints in any testing except in themultiple impact testing.9.4.6 Head to Fo
