1、Designation: F 1492 08An American National StandardStandard Specification forHelmets Used in Skateboarding and Trick Roller Skating1This standard is issued under the fixed designation F 1492; the number immediately following the designation indicates the year oforiginal adoption or, in the case of r
2、evision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers performance requirements forhelmets to be used in the activities of ska
3、teboarding and trickroller skating.1.2 All testing and requirements of this specification shallbe in accordance with Test Methods F 1446, except wherenoted herein.1.3 Partial utilization of this specification is prohibited. Anystatement of compliance with this specification shall be acertification t
4、hat the headgear meets all of the requirements ofthe specification in their entirety. A headgear 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 Th
5、e values stated in SI units are to be regarded asstandard. No other units of measurement are included in thisstandard.1.5 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-pria
6、te safety and 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 Definitions of T
7、erms Specific to This Standard:3.1.1 trick roller-skating, naggressive roller skating usingquads or in-lines and involving such things as jumping, slidingsideways, or skating on ramps or stairs.3.1.2 in-lines, nroller skates with all wheels on each skatearranged along a single longitudinal line.3.1.
8、3 quads, nroller skates with four wheels on each skatearranged in a rectangular pattern.4. Labels and Warnings4.1 Shall meet the requirements of Test Methods F 1446.4.2 Shall have the words “For skateboarding or trick rollerskating” inscribed on one of the interior permanent labels.4.3 Headgear that
9、 complies with this and other standardsmay proclaim uses as certified by the manufacturer.5. Marking the Test Line5.1 The test line is shown in Fig. 1 and shall be marked inaccordance with Test Methods F 1446.6. Conditioning and Number of Samples6.1 Shall be in accordance with Test Methods F 1446.6.
10、2 The test requires a minimum of four samples of eachshell/liner combination.7. Retention System Testing7.1 Retention system tests shall be performed before impacttesting.7.2 The ambient helmet shall be subjected to the Roll-OffTest of Test Methods F 1446 usinga4kgdrop mass from aheight of 0.6 m.7.3
11、 The retention system shall remain intact and the helmetshall remain on the headform.7.4 The hot, cold, and wet helmets shall be subjected to theDynamic Strength Retention Test of Test Methods F 1446usinga4kgdrop mass from a height of 0.6 m.1These specifications are under the jurisdiction of ASTM Co
12、mmittee F08 onSports Equipment and Facilities and are the direct responsibility of SubcommitteeF08.53 on Headgear and Helmets.Current edition approved July 1, 2008. Published July 2008. Originally approvedin 1993. Last previous edition approved in 2000 as F 1492 00.2For referenced ASTM standards, vi
13、sit 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 19428-
14、2959, United States.7.5 The retention system shall remain intact without elon-gating more than 30 mm.8. Impact Sites and Projections8.1 Impact sites are described in Test Methods F 1446.8.2 ProjectionsAny unfaired projection extending morethan 7 mm from the helmets outer surface shall break away orc
15、ollapse when impacted with forces equivalent to those pro-duced by applicable impact-attenuation tests in Section 10.There shall be no fixture on the helmets inner surfaceprojecting more than 2 mm into the helmet interior exceptoccipital stabilizers and foam fit pads.9. Impacting Schedule9.1 All imp
16、acting shall be performed in accordance withTest Methods F 1446, except as noted in 9.4.9.2 The test anvils can be oriented in any horizontal,centered position.9.3 At least one of the four impact sites (as described in TestMethods F 1446) on the ambient conditioned helmet will beimpacted three conse
17、cutive times with the flat anvil at the sametest location to evaluate the helmets ability to withstandmultiple impacts. A time interval of 90 6 30 s must elapsebetween impacts directed at the same location on the samehelmet.9.4 Each of the three remaining helmets (one for eachremaining environment),
18、 will be impacted as described in TestMethods F 1446.10. Impact Testing10.1 Retention system testing shall be completed prior toimpact testing.10.2 The helmet can be impacted such that the theoreticalcenter of impact described in Test Methods F 1446 is anywhereon or above the test line described in
19、Fig. 1.10.3 Anvils to be used are the flat, cylindrical, and triangu-lar hazard anvils from Test Methods F 1446.10.4 The helmet shall be dropped onto each anvil to achievean impact velocity of 4.57 m/s, +5 %, 0 % (corresponding toa theoretical drop height of 1.0 m).10.5 Each helmet shall be given tw
20、o flat anvil impacts andone each cylindrical and triangular hazard anvil impact in anysequence.10.6 The theoretical center of each impact site shall beseparated from the theoretical center of other impact sites by aminimum of 120 mm.10.7 The peak acceleration of each impact shall not exceed300 g.11.
21、 Keywords11.1 headgear; helmet; roller; skate; skateboard; skatingNOTEThe center of impact can be anywhere on or above the test line.FIG. 1 Marking the Test Line ABCDF1492082ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mention
22、edin 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 technical committee and
23、 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 consideration at a meeting of
24、 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 Barr Harbor Drive, PO Box
25、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).F1492083
