1、Designation: F 2400 06Standard Specification forHelmets Used in Pole Vaulting1This standard is issued under the fixed designation F 2400; 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 parent
2、heses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.INTRODUCTIONPole vaulting by its very nature carries a risk of serious injury and even death. Participation in polevaulting (just as in other sports involving spe
3、ed, heights, and falls) implies acceptance of this risk.Measures to significantly reduce this risk include, first and foremost, the use of regulation sized polevault pits and padded standard base covers, along with the removal or padding of any adjacent hardsurfaces. Education of pole vault coaches
4、and athletes is another important risk reduction measure.Helmets might be part of a plan to reduce risk as well. A helmet that meets this specification mightbe helpful for certain events like a bounce out, a fall while exiting the pole vault pit, or other impacts.A helmet, however, is not likely to
5、prevent serious injury or death if a vaulter lands outside of the polevault pit and strikes his or her head after a vault.1. Scope1.1 This specification covers performance requirements forhelmets to be used in the activity of pole vaulting.1.2 All testing and requirements of this specification are t
6、obe carried out in accordance with Test Methods F 1446 exceptwhere noted in this specification.1.3 Partial utilization of this specification is prohibited. Anystatement of compliance with this specification shall be acertification that the product meets all of the requirements ofthe specification in
7、 their entirety. A product that fails to meetany one of the requirements of this specification is consideredto have failed the specification and shall not be sold with anyindication that it meets parts of the specification.1.4 Helmets designed to comply with this and other stan-dards may proclaim us
8、es as certified by the manufacturer.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 and
9、health practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2F 1446 Test Methods for Equipment and Procedures Usedin Evaluating the Performance Characteristics of ProtectiveHeadgear3. Terminology3.1 For definitions of terms used
10、in this specification, seeTest Methods F 1446.4. Number of Samples4.1 Five helmets are required of each model and size to betested.5. Conditioning5.1 Conditioning of test samples shall be in accordance withthe requirements of the section on Conditioning Environmentsof Test Methods F 1446.1This speci
11、fication 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 March 1, 2006. Published April 2006.2For referenced ASTM standards, visit the ASTM website, www.astm.org,
12、 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 19428-2959, United States.6. Selection of
13、 Headform6.1 The appropriate size headform shall be selected basedon the headform size selection terminology of Test MethodsF 1446 for the helmet to be tested. Headforms to be used shallbe as specified in Test Methods F 1446.7. Reference Marking7.1 Marking the test line shall be in accordance with t
14、heReference Marking requirements of Test Methods F 1446.7.2 The preload ballast weight shall be 5 kg.7.3 Mark the test line ABCD on the helmet as shown in Fig.1.8. Helmet Inspection8.1 The configuration requirements of the section on Con-figuration in Test Methods F 1446 shall be satisfied.8.1.1 In
15、addition, for this specification no aerodynamicfairings will be allowed as pole-vaulters try or tend to land ontheir back.8.1.2 Ventilation ports are allowed as long as all otherrequirements of this specification are met.8.1.3 When mounted on the reference headform in accor-dance with the section on
16、 Reference Marking of Test MethodsF 1446, determine the minimum distance from the headform tothe outer surface of the helmet at any point above the test line.In this context, the outer surface can be defined by conforminga flexible strip of steel to the outer surface. No portion of thehelmets outer
17、surface shall be more than 15 mm further fromthe surface of the test headform than the minimum distance.8.1.4 Lateral visual clearance shall be unobstructed throughat least 105 to each side of the median plane and upwardvisual clearance must be unobstructed through at least 40above the reference pla
18、ne.8.1.4.1 The clearance for peripheral vision will be checkedby placing the helmet on each appropriate headform, position-ing it according to the helmet positioning index, and holding itin place with the preload ballast weight of 5 kg. The clearancemust include the upward visual clearance and the l
19、ateral visualclearance. The helmet shall be tested with all detachablecomponents removed and all adjustable components set in themost unfavorable manner for the test. No part of the helmetshall intrude into the required clearance.NOTEThe center of impact can be anywhere on or above the test line.FIG
20、. 1 Test LineF24000628.1.4.2 The upward visual clearance is the solid anglebounded by the reference plane of the headform and a secondplane tilted upward from the reference plane. This second planeintersects the reference plane at two points on the front surfaceof the headform that are 31 mm to the
21、right and left of thelongitudinal plane as shown in Figure 13 of Test MethodsF 1446. The dihedral angle formed by the reference plane andthis second plane shall be at least 40.8.1.4.3 The lateral visual clearance, as shown in Figure 13of Test Methods F 1446, is the solid angle bounded by thereferenc
22、e plane, the basic plane and two more planes that areperpendicular to the reference plane and that contain the pointon the front surface of the headform at which the reference andlongitudinal planes intersect. Each of these two planes forms adihedral angle with the longitudinal plane as specified in
23、 theindividual standard. This angle shall be 105.8.2 The materials requirements of the section on Materialsin Test Methods F 1446 shall be satisfied.8.3 Labeling Requirements:8.3.1 Each helmet shall contain labels that satisfy thelabeling requirements of Test Methods F 1446.8.3.2 In addition, one or
24、 more of the interior labels of thehelmet shall have the words: for use in the sport of polevaulting.8.4 The interior projections requirements of the section onInterior Projections of Test Methods F 1446 shall be satisfied.9. Conditioning9.1 A single sample of the helmets shall be conditioned inthe
25、ambient, low temperature, high temperature, and waterimmersion conditions identified in the section on ConditioningEnvironments of Test Methods F 1446 prior to subsequenttesting.10. Order of Testing10.1 Determination of compliance with this specificationshall be performed in the sequence indicated i
26、n Sections 11 and12.11. Retention System Testing11.1 Retention system testing shall be performed beforeimpact testing.11.2 Dynamic Strength Retention TestThe hot and coldand water immersed helmets shall be subjected to the dynamicloading test in accordance with the Dynamic Strength Reten-tion Test o
27、f Test Methods F 1446.11.2.1 The sliding drop mass shall be 4 kg with a dropheight of 0.6 m.11.2.2 The retention system shall remain intact withoutelongating more than 30 mm.11.3 The ambient helmet shall be subjected to the positionalstability testing in accordance with the section on Roll-Off ofTes
28、t Methods F 1446.11.3.1 The sliding drop mass shall be 4 kg with a dropheight of 0.6 m.11.3.2 The retention system shall remain intact and thehelmet must remain on the headform.12. Impact Testing12.1 All impact testing shall be carried out in accordancewith the section on Impact Attenuation of Test
29、MethodsF 1446.12.2 Anvils as specified in the section on Impact Anvils ofTest Methods F 1446 to be used for impact tests in thisspecification include flat and curbstone.12.2.1 Test anvils can be oriented in any horizontal, cen-tered direction.12.3 Each helmet shall be given two flat anvil impacts an
30、dtwo curbstone anvil impacts in any sequence. The four impactsshall be on different impact sites on the helmet. The impactsites may be anywhere on or above the test line.12.4 The helmets shall be dropped onto the flat anvil at animpact velocity of 6.2 m/s corresponding to the theoreticaldrop height
31、of 2.0 m.12.5 The helmet shall be dropped onto the Curbstone Anvilat an impact velocity of 4.8 m/s corresponding to a drop heightof 1.2 m.12.6 The peak acceleration of any impact shall not exceed300 g.13. Keywords13.1 helmet(s); pole vault; protective headgearASTM International takes no position res
32、pecting 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 such rights, are entirely their own responsibility.This
33、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 additional standardsand should be addressed to ASTM Intern
34、ational 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 the ASTM Committee on Standards, at the address shown be
35、low.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).F2400063
