ASTM_F_2271_-_11_2015.pdf

Designation:F227111(Reapproved 2015)An American National StandardStandard Specification forPaintball Marker Barrel Blocking Devices1This standard is issued under the fixed designation F2271;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.INTRODUCTIONThis standard is intended to outline basic performance requirements for barrel blocking devices.Abarrel blocking device is a critical piece of safety equipment used in the sport of paintball.Paintball is a sport that,like all sports,has intrinsic hazards.These hazards include being hit bypaintballs.Protective equipment cannot eliminate all injuries but will substantially reduce theirseverity and frequency.Abarrel blocking device is an additional safety device that,when meeting thisstandard and properly used,can substantially reduce the severity and frequency of injuries.Paintballmarker barrels are not all the same inside diameter,thus necessitating performance specifications forbarrel blocking devices that match the barrel blocking device to a barrel diameter.This specificationis written within the current state-of-the-art of paintball marker barrel and paintball barrel blockingdevice technology.The intent is to revise this specification whenever substantive information becomesavailable which justifies revising existing requirements or adding new requirements.1.Scope1.1 This specification covers paintball barrel blocking de-vices that may be inserted or otherwise function to prevent apaintball from leaving the muzzle or the confines of the barrelblocking device intact.1.2 The values stated in SI units are to be regarded as thestandard.The inch-pound units given in parentheses areprovided for information only.1.3 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 requirements prior to use.2.Referenced Documents2.1 ASTM Standards:2F1979 Specification for Paintballs Used in the Sport ofPaintballF2272 Specification for Paintball Markers3.Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 Paintball Marker Terms:3.1.1.1 auto-triggera trigger which,when held in thedischarge position,will automatically cause the paintballmarker to discharge when the pump or bolt action is manipu-lated.3.1.1.2 barrelthat portion of a paintball marker throughwhich the paintball is discharged.3.1.1.3 barrel blocking devicea safety device that preventsan intact paintball from being accidentally discharged from themuzzle of the paintball marker or leaving the confines of thebarrel blocking device.3.1.1.4 burst mode markera burst mode marker maydischarge two or more times per trigger cycle or may dischargetwo or more times with the pull and release of the trigger.3.1.1.5 discharge modea mode that controls the number ofpaintballs discharged per trigger cycle.3.1.1.6 enhanced trigger mode markera paintball markerthat at some point discharges more than one paintball pertrigger cycle.This includes markers that“store”the number oftrigger.3.1.1.7 fully-automatic mode markera marker that dis-charges when the triggering device is actuated and continues todischarge until the trigger returns to its reset or recycleposition.3.1.1.8 modified fully automatic mode 1 markera semiau-tomatic mode marker which,after the trigger is pulled at least1This specification is under the jurisdiction of ASTM Committee F08 on SportsEquipment,Playing Surfaces,and Facilitiesand is the direct responsibility ofSubcommittee F08.24 on Paintball and Equipment.Current edition approved April 1,2015.Published August 2015.Originallyapproved in 2003.Last previous edition approved in 2011 as F2271 11.DOI:10.1520/F2271-11R15.2For 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 three times within 1 s,is able to function in a fully automaticmode with a firing rate not to exceed 15 shots per second untilthe trigger is released.3.1.1.9 modified burst mode 2 markera semi-automaticmode marker which,after the trigger is pulled at least threetimes within 1 s,is able to cycle more than one time per triggerpull with a firing rate not to exceed 15 shots per second.3.1.1.10 muzzlethe end of the barrel at which the ball exitsthe barrel.3.1.1.11 muzzle diameterthe inside barrel diameter asmeasured at the muzzle.3.1.1.12 paintballa spherical ball,commonly with a di-ameter of 17.3 mm(0.68 in.),comprised of a s