1、Designation: F1492 15 An American National StandardStandard Specification forHelmets Used in Skateboarding and Trick Roller Skating1This standard is issued under the fixed designation F1492; the number immediately following the designation indicates the year oforiginal adoption or, in the case of re
2、vision, 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 skat
3、eboarding and trickroller skating.1.2 All testing and requirements of this specification shallbe in accordance with Test Methods F1446, except where notedherein.1.3 Partial utilization of this specification is prohibited. Anystatement of compliance with this specification shall be acertification tha
4、t 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 The
5、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-priate
6、 safety and health practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2F1446 Test Methods for Equipment and Procedures Used inEvaluating the Performance Characteristics of ProtectiveHeadgear3. Terminology3.1 Definitions of Term
7、s 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.3.1.3 q
8、uads, nroller skates with four wheels on each skatearranged in a rectangular pattern.4. Labels and Warnings4.1 Shall meet the requirements of Test Methods F1446.4.2 Shall have the words “For skateboarding or trick rollerskating” inscribed on one of the interior permanent labels.4.3 Headgear that com
9、plies 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 F1446.6. Conditioning and Number of Samples6.1 Shall be in accordance with Test Methods F1446.6.2 The
10、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 F1446 usinga4kgdrop mass from aheight of 0.6 m.7.3 The re
11、tention 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 F1446 usinga 4 kg drop mass from a height of 0.6 m.7.5 The retention system shall remain intact without elon-gatin
12、g more than 30 mm.8. Impact Sites and Projections8.1 Impact sites are described in Test Methods F1446.1This specification is under the jurisdiction of ASTM Committee F08 on SportsEquipment, Playing Surfaces, and Facilities and is the direct responsibility ofSubcommittee F08.53 on Headgear and Helmet
13、s.Current edition approved July 1, 2015. Published August 2015. Originallyapproved in 1993. Last previous edition approved in 2015 as F1492 08 (2015).DOI: 10.1520/F1492-15.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For An
14、nual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States18.2 ProjectionsAny unfaired projection extending morethan 7 mm from the hel
15、mets outer surface shall break away orcollapse 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 fi
16、t pads.9. Impacting Schedule9.1 All impacting shall be performed in accordance withTest Methods F1446, except as noted in 9.4, using the variablemass drop assembly configuration.9.2 The test anvils can be oriented in any horizontal,centered position.9.3 At least one of the four impact sites (as desc
17、ribed in TestMethods F1446) on the ambient conditioned helmet will beimpacted three consecutive 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 th
18、e samehelmet.9.4 Each of the three remaining helmets (one for eachremaining environment), will be impacted as described in TestMethods F1446.10. Impact Testing10.1 Retention system testing shall be completed prior toimpact testing.10.2 The helmet can be impacted such that the theoreticalcenter of im
19、pact described in Test Methods F1446 is anywhereon or above the test line described in Fig. 1.10.3 Anvils to be used are the flat, cylindrical, and triangu-lar hazard anvils from Test Methods F1446.10.4 The helmet shall be dropped onto each anvil to achievean impact velocity of 4.57 m/s, +5 %, 0 % (
20、corresponding toa theoretical drop height of 1.0 m).NOTE 1The center of impact can be anywhere on or above the test line.HeadformSizeDimensionXL/2 Y R S TA 24.0 88.0 89.7 47.5 7.0 142.0C 25.0 91.0 92.7 48.5 7.0 146.5E 26.0 94.5 96.0 49.0 8.0 151.0J 27.5 101.0 102.5 50.0 8.0 160.0M 29.0 106.0 107.0 5
21、2.0 8.0 166.0O 30.0 108.5 110.0 53.0 9.0 170.0FIG. 1 Marking the Test Line ABCDF1492 15210.5 Each helmet shall be given two 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 theoreti
22、cal center of other impact sites by aminimum of 120 mm.10.7 The peak acceleration of each impact shall not exceed300 g.11. Keywords11.1 headgear; helmet; roller; skate; skateboard; skatingASTM International takes no position respecting the validity of any patent rights asserted in connection with an
23、y 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 technical
24、 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 consideration a
25、t 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 Barr Harbor
26、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). Permission rights to photocopy the standard may also be secured from the Copyright Clearance Center, 222Rosewood Drive, Danvers, MA 01923, Tel: (978) 646-2600; http:/ 153
