ASTM_F_1163_-_15.pdf

Designation:F116315An American National StandardStandard Specification forProtective Headgear Used in Horse Sports and HorsebackRiding1This standard is issued under the fixed designation F1163;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 parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.INTRODUCTIONHorse sports and horseback riding are sports with intrinsic hazards.It is recognized that it is notpossible to write a protective headgear performance standard that will result in headgear that canprotect against injury or death in all accidents.It is also recognized that serious injury or death canresult from both low-energy and high-energy impacts,even when protective headgear is worn.It isfurther recognized that protective headgear must be acceptable to the user and to the regulatingassociations or agencies requiring its use.Acknowledging these limitations,this specification wasdeveloped using resources in medical,scientific,mechanical engineering,human factors,andbiomechanical fields.This specification incorporates many aspects of other recognized headgear performance standards.This specification draws from work done by others where appropriate for this specification.Thesestandards may be referenced.It should be noted that this specification specifies a laboratory test ofcompleted headgear to measure its ability to reduce head acceleration when impacting various shapedobjects.It is known that headgear that performs well under this specification will mitigate head injuryin actual use within its design limits.1.Scope1.1 This specification covers minimum performance criteriaand describes test methods for protective headgear for use inhorse sports and horseback riding.1.2 It is not the intention of this specification to bar fromconsideration materials of improved quality or performance notknown at the time of development of this specification.1.3 All testing and requirements of this specification shallbe in accordance with Test Methods F1446,except where notedherein.1.4 The values stated in SI units are to be regarded as thestandard.1.5 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.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 health practices and determine the applica-bility of regulatory limitations prior to use.2.Referenced Document2.1 ASTM Standards:2F1446 Test Methods for Equipment and Procedures Used inEvaluating the Performance Characteristics of ProtectiveHeadgearF2220 Specification for Headforms3.Terminology3.1 DefinitionsThe terms used in this specification aredefined in accordance with Test Methods F1446.3.2 Definitions of Terms Specific to This Standard:3.2.1 cradle,nheadband or other head-fitting device andthose internal parts of the headgear in contact with the head.3.2.2 drawlace,nlace used for making adjustments to thefit of the cradle on the wearers head.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 Helmets.Current edition approved Oct.1,2015.Published October 2015.Originallyapproved in 1988.Last previous edition approved in 2013 as F1163 13.DOI:10.1520/F1163-15.2For 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 C700,West Conshohocken,PA 19428-2959.United States1 4.Headforms4.1 Headforms to be used in this specification are inaccordance with the section on Apparatus of Test MethodsF1446.The appropriate size headform shall be selected(seedefinition of headform size selection in the Terminologysection of Test Methods F1446)for the helmet to be tested.4.2 Test headforms used in this specification shall use thevariable mass drop assembly configuration for impact testingas specified in the definition of test headforms in the terminol-ogy section and in Table 2 of Test Methods F1446.5.Anvils and Impact Velocities5.1 Anvils to be used for impact tests in this specificationare the flat anvil described in the section and figure on FlatAnvil of Test Methods F1446,and the equestrian hazard anvildescribed in Fig.1 of this specification.The circular portion ofthe equestrian hazard anvil shall have a radius of 66.7 6 0.5mm,with facial surfaces inclined at an angle of 45 6 2.Theedge rail at the intersection of the facial surfaces shall have aradius of 0.4 mm maximum.5.2 The helmet shall be dropped onto the flat anvil from a