ASTM_F_1937_-_04_2010.pdf

Designation:F193704(Reapproved 2010)An American National StandardStandard Specification forBody Protectors Used in Horse Sports and HorsebackRiding1This standard is issued under the fixed designation F1937;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 body protector performance standard that will result in products that can protectagainst injury or death in all accidents.It is also recognized that serious injury or death can result fromboth low-energy and high-energy impacts,even when body protectors are worn.It is furtherrecognized that protective body protectors must be acceptable to the user and to the regulatingassociations or agencies requiring their use.Acknowledging these limitations,this specification wasdeveloped using resources in medical,scientific,engineering,human factors,and biomedical fields.This specification incorporates many aspects of other recognized body protector performancestandards.This specification draws from work done by others where appropriate for this specification.These standards may be referenced.It should be noted that this specification specifies a laboratory testof a completed body protectors ability to reduce impacts.1.Scope1.1 This specification covers minimum performance criteriaand describes test methods for body protectors for use in horsesports 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 The values stated in inch-pound units are to be regardedas the standard.The values given in parentheses are forinformation only.1.4 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 Documents2.1 ASTM Standards:2F1045 Performance Specification for Ice Hockey HelmetsF1446 Test Methods for Equipment and Procedures Used inEvaluating the Performance Characteristics of ProtectiveHeadgear2.2 BETA Standard:3BETA 1.24.4.95 Standard for Horse Riders Body andShoulder Protectors2.3 National Institute of Justice Standard:4NIJS 0101.03 Ballistic Resistance of Police Body Armor2.4 SAE Standard:5SAE J211 Recommended Practice for Instrumentation forImpact TestsRequirements for Channel Class 10003.Terminology3.1 Definitions of Terms Specific to This Standard:In addi-tion to terms defined in Test Methods F1446,the followingterms are specific to this specification:3.1.1 backing materialblock of non-hardening,oil-basedmodeling clay in contact with the back of the body protectivetest specimen during impact deformation testing.61This specification is under the jurisdiction of ASTM Committee F08 on SportsEquipment,Playing Surfaces,and Facilitiesand is the direct responsibility ofSubcommittee F08.55 on Body Padding.Current edition approved May 1,2010.Published May 2010.Originallyapproved in 1998.Last previous edition approved in 2004 as F1937 04.DOI:10.1520/F1937-04R10.2For 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.3Available from the British Equestrian Trade Association Ltd.,WorthersomeGrange,Bramham,Nr.Wetherby,Yorkshire,LS23 6LY.4Available from National Institute of Justice(NIJ),810 7th St.,NW,Washington,DC 20531,http:/www.ojp.usdoj.gov/nij.5Available from SAE International(SAE),400 Commonwealth Dr.,Warrendale,PA 15096-0001,http:/www.sae.org.6Abacking material found to be suitable is Roma Plastilina No.1 modeling clayas defined in NIJS 0101.03.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 3.1.2 body protectorsleeveless garment covering definedareas of the torso and lower back and consisting of one or morelayers of material and designed to reduce trauma from bluntimpacts and falls.3.1.3 bust girthmaximum horizontal girth measured dur-ing normal breathing with the subject standing upright and thetape-measure passed over the scapulae under the armpits andacross the breasts:normal underclothing to be worn.3.1.4 calibration impact surfaceimpact surface shall be aflat modular elastomer programmer(MEP).The MEP is 6.0 in.(152 mm)in diameter,and 1.0 in.(25 mm)thick.It is affixedto the top surface of a flat,0.25 in.(6.35 mm)thick aluminumplate.The durometer of the MEP is 60 6 2 Shore A.3.1.5 chest girthmax