1、Designation: F2574 06 (Reapproved 2010)F2574 06 (Reapproved 2014)An American National StandardStandard Specification forLow Velocity Projectile Marker1This standard is issued under the fixed designation F2574; the number immediately following the designation indicates the year oforiginal adoption or
2、, 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.1. Scope1.1 This specification covers low velocity projectile markers (herein referred to a
3、s LVP marker) that propel a low velocityresilient material projectile (herein referred to as LVRM projectile as defined in Specification F2573) by means of energy releasedby compressed air, compressed gas, or a combination thereof, with velocity not to exceed 53.34 m/s (175 ft/s).1.2 LVRM projectile
4、s are made of a resilient material and have a diameter no smaller than 20 mm (0.7874 in) and no greaterthan 30 mm (1.18 in.). The hardness of the LVRM projectile is to be no greater than 75 Shore 00. The weight of the LVRMprojectile is not to exceed 4.0 g.1.3 The values stated in SI units are to be
5、regarded as standard. The values given in parentheses are for information only.1.4 The following precautionary caveat pertains only to the test method portion, Section 8, of this specification. This standarddoes not purport to address all of the safety concerns, if any, associated with its use. It i
6、s the responsibility of the user of thisstandard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2F1750 Specification for Paintball Marker Threaded-Propellant Source InterfaceF1776 S
7、pecification for Eye Protective Devices for Paintball SportsF2573 Specification for Low Velocity Resilient Material Projectile2.2 ANSI Standard:3Z535.1 Safety Color Code3. Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 auto-triggertrigger that, when held in the discharge positio
8、n, will automatically cause the LVPmarker to discharge whenthe pump or bolt action is manipulated.3.1.2 backstopobject intended to stop a LVRM projectile.3.1.3 barrelthat portion of a LVP marker through which the LVRM projectile is discharged.3.1.4 barrel blocking devicemuzzle blocking safety device
9、 that when properly installed, reduces the likelihood of an intactLVRM projectile discharging from the marker or leaving the confines of the barrel blocking device. The device is often referredto as a barrel plug or sleeve.3.1.5 cautionary statementwarning outlined in Section 9 that is to be placed
10、on LVP markers, packaging, and literature.3.1.6 disabling devicedevice that, when activated, disables a part of the LVP marker, usually the trigger, to preventunintentional discharges and must be released to allow the marker to be discharged by the movement of the trigger. The deviceis sometimes ref
11、erred to as the “safety,” “safety button,” or “safety lever.” An electronic on/off switch is considered a disablingdevice if when placed in the “off” position, it renders the marker inoperable.3.1.7 discharge modemode that controls the number of LVRM projectiles discharged per trigger cycle.1 This s
12、pecification is under the jurisdiction of ASTM Committee F08 on Sports Equipment, Playing Surfaces, and Facilities and is the direct responsibility ofSubcommittee F08.24 on Paintball and Equipment.Current edition approved Dec. 1, 2010May 1, 2014. Published March 2011September 2014. Originally approv
13、ed in 2006. Last previous edition approved in 20062010 asF2574 06.F2574 06 (2010). DOI: 10.1520/F2574-06R10.10.1520/F2574-06R14.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information
14、, refer to the standards Document Summary page on the ASTM website.3 Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036.This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what cha
15、nges have been made to the previous version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current versionof the standard as published by ASTM is to be considered the offi
16、cial document.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States13.1.8 feed mechanismmechanism that stores, transports, and facilitates the loading of LVRM projectiles. It may be gravity,mechanically or air assisted, or automatic in its
17、actions.3.1.9 hopperdevice used with a LVP marker to store LVRM projectiles.3.1.10 impact testerdevice used to test for accidental discharges of LVP marker. See Fig. 1.3.1.11 low velocity resilient material projectileobject propelled by means of a discharge mechanism, capable of storing andreleasing
18、 energy under the control of the operator, comprised of a resilient material, and has a diameter no smaller than 20 mm(0.7874 in) and no greater than 30 mm (1.18 in.). The hardness of the low velocity resilient material projectile is to be no greaterthan 75 Shore 00. The weight is not to exceed 4.0
19、g.3.1.12 low velocity projectile markerdevice specifically designed to discharge low velocity resilient material projectiles.3.1.13 pump mode markermarker that requires the operator to manually cock or engage the sear of the marker before eachshot by a means of a pump, bolt, lever, cocking handle, o
20、r similar device.3.1.14 rangemaximum distance to which an object may be propelled, whether limited by energy or an obstacle.3.1.15 searcatch that holds the mechanism in the ready-to-discharge position until released by the user, usually through triggermovement.3.1.16 semi-automatic mode markersemi-a
21、utomatic marker discharges one time with each trigger cycle. Markers that “store”the number of trigger pulls and discharge more than one LVRM projectile at some point do not meet this definition. Markers thatoperate in any other discharge mode(s) do not meet this definition.A. Release LatchB. Compre
22、ssion Spring (spring rate 1.145 kg/cm or 16.28 lb/in.)C. Impact Ball (new pressurized tennis ball with regular felt, total mass of moving parts is 1.13 kg or 2.5 lb)D. Plastic tube with 7.62 cm (3 in.) internal diameterE. Face placed against markerF. Cocking armG. Stroke of 15.21 cm (6 in.)H. Secure
23、d support baseFIG. 1 Impact TesterF2574 06 (2014)23.1.17 shore 00applicable durometer type scale to measure the hardness of sponge and foam materials.3.1.18 standard ambient temperature and pressure (SATP)used to describe a substance at the pressure of 1 bar (1.01325atmospheres, 750 mm Hg, 14.5 psi,
24、 100 kPa) and a temperature of 25C (77F).3.1.19 targetobject at which the LVRM projectile shall be discharged.3.1.20 triggerdevice operated by the user to discharge a marker.3.1.21 trigger cyclemovement of the trigger through discharge and returning to a reset or recycle position.3.1.22 trigger pull
25、force required to move the trigger from its start or recycle/reset position to a position that discharges themarker.4. Significance and Use4.1 This specification establishes performance requirements and test methods for LVP markers.4.2 This specification identifies the minimum warnings and instructi
26、ons that are to be provided in literature, on labels, onpackaging, and on the marker itself.5. Conformance5.1 LVP markers shall not, either by label or other means, indicate conformance with this specification, unless at the time ofmanufacture they conform to all applicable requirements contained he
27、rein.6. Procedure6.1 LiteratureLiterature shall be provided with each LVP marker and shall include, as applicable, the instructions, cautionarystatements, and safety tips specified in Section 11.6.2 PackagingPackaging shall be labeled in a prominent and conspicuous manner in accordance with the prov
28、isions of 10.1.6.3 FinishThe exposed edges of all LVP markers shall be smooth and free of sharp edges and burrs.6.4 Shipping:6.4.1 Each LVP marker shall be shipped in an unloaded and degassed condition.6.4.2 All LVP markers must shoot at a velocity under 53.34 m/s (175 ft/s) at the time of shipment
29、at SATP.6.5 Design:6.5.1 All LVP markers intended to be used with removable cylinders shall be able to withstand input pressure of 3000 lb/in. 2207 bar (3000 psi) without catastrophic failure. Leaking in a manner that would not cause injury to the operator shall not constitutefailure in accordance w
30、ith Specification F1750.6.5.2 A markers performance may not be enhanced, including but not limited to increasing the markers velocity without theuse of tools or disassembly.6.5.3 All LVP markers shall only operate in semi-automatic or pump mode and may not operate in other discharge modes.7. Perform
31、ance Requirements7.1 Marker FunctionThe cocking or pumping mechanism of a LVP marker shall not cause a marker to dischargeunintentionally while a marker is being cocked in accordance with the manufacturers instructions. This does not limit the use of“auto-triggers.” Markers shall be a pump or a semi
32、-automatic, or both, as defined in this specification.7.2 Disabling DeviceDisabling devices shall be provided on all LVP markers and all such devices shall keep from firingmarker whether or not the marker is cocked. All such devices shall be clearly marked to indicate the “safe” and “fire” or “on” a
33、nd“off” positions in accordance with 3.1.6. All such devices shall be capable of preventing the markers from being discharged whena weight of 13.6 kg (30 lb) is applied to the trigger. Tests shall be conducted in accordance with 8.3.7.3 Accidental DischargeMarkers should not accidentally discharge w
34、hen exposed testing in accordance with 8.3.8. Test Methods8.1 No precision statement on any of the following test methods is available at this time.8.2 Disabling Device Test:8.2.1 SignificanceThis method determines if the disabling device will withstand a 13.6 kg (30 lb) applied weight withoutfailur
35、e, causing the marker to discharge.8.2.2 ApparatusA trigger weight system having a 13.6 6 0.02 kg (30 6 0.05 lb) weight. Arrange the weight system so thatthe weights can be picked up by the trigger of the marker with the marker in a vertical position, muzzle up. (Aspring gage capableof measuring the
36、 trigger force can be used instead of the weight system.)8.2.3 Test SpecimenThe test specimen shall consist of a new LVPmarker selected in accordance with the manufacturers usualquality assurance practices.F2574 06 (2014)38.2.4 Procedure:8.2.4.1 Conduct the test at SATP.8.2.4.2 Conduct all tests wit
37、hout LVRM Projectiles in the marker.8.2.4.3 Place disabling device in “safe” position or the electronic switch in the “off” position.8.2.4.4 Apply a 13.6 kg (30 lb) load at the center point of the trigger for 30 s with the load applied to the center of the faceof the trigger and remove the load.8.2.
38、4.5 Put disabling device in the “fire” position or the electronic switch in the “on” position. The marker must not dischargeas the safety is disengaged.8.2.4.6 Test the marker for proper trigger and disabling device action.8.2.4.7 The marker passes the test if it withstands the load applied without
39、causing the marker to discharge during theapplication of the load and does not discharge upon the disengagement of the disabling device, and the disabling device and triggerfunction properly after testing.8.3 Accidental Discharge Test:8.3.1 SignificanceLVP markers should not discharge while their di
40、sabling device is disengaged.8.3.2 Test SpecimenThe test specimen shall consist of a new LVP marker, selected in accordance with the manufacturersusual quality assurance practices.8.3.3 Procedure:8.3.3.1 Conduct the test at SATP.8.3.3.2 Attach a properly charged propellant source if required in acco
41、rdance with the manufacturers instructions. Testdischarge the marker.8.3.3.3 Leave the marker in the ready to discharge condition.8.3.3.4 Suspend marker using a sling (see Fig. 2).8.3.3.5 Place the cocked impact tester (see Fig. 1) against the side of the marker centered on the grip frame directly b
42、ehind thecenter point of the trigger with the impact tester firmly affixed to an immobile surface.8.3.3.6 Release the impact tester and observe if the marker discharges.8.3.3.7 Repeat by impacting the marker on the following axis:(1) 180 degrees to the first impact.(2) The front of the barrel aligne
43、d with the barrels axis.(3) The rearmost point of the marker aligned with the barrels axis.A. YokeB. Pivot BoltC. SwivelD. 91.29 cm (36 in.) Strap or RopeE. 60.86 cm (24 in.) aluminum bar with 1.27 cm (0.5 in.) diameter or 1.9 cm (0.75 in.) copper tubeF. Hook and loop strap able to suspend marker pa
44、rallel to and 15.21 cm (6 in.) below EFIG. 2 Sling ExampleF2574 06 (2014)48.3.3.8 The marker fails if it discharges on any impact.8.4 Barrel Blocking Device Requirement:8.4.1 SignificanceAll LVP markers that include a barrel must be packaged with a barrel blocking device.8.4.2 Test SpecimenThe test
45、specimen shall consist of a new LVP marker packaged in the manufacturers original packaging.8.4.3 ProcedureOpen packaging and inspect for the presence of a barrel blocking device.Any package not containing a barrelblocking device fails this requirement.8.5 Impact Testing:8.5.1 SignificanceThe test i
46、s intended to simulate situations in which possible damage can occur by reason of its falling orother impact situations that may occur as a result of reasonably foreseeable abuse.After undergoing the appropriate test, the markershall be examined for damaged or fractured components or parts. The mark
47、er is not fit for use if damage or fracture is observed.8.5.2 Apparatus:8.5.2.1 Tile Floor AreaThe impact medium shall consist of a 3 mm (18 in.) nominal thickness of Type IV vinyl compositiontile, composition 1-asbestos free, as specified in Federal Specification SS-T-312B over at least a 64 mm (2.
48、5 in.) thickness ofconcrete. The impact area shall be at least 0.3 m2 (3 ft2).8.5.2.2 Concrete Floor, on which to place the tiles.8.5.2.3 Measure, 0.93 m (3 ft, 0.5 in.), to establish the height of the drop.8.5.2.4 Projectiles, to fill the magazine or an equivalent.8.5.3 Test SpecimenThe test specim
49、en shall consist of a new LVPmarker selected in accordance with the manufacturers usualquality assurance practices.8.5.4 Procedure:8.5.4.1 Conduct the test at room temperature 16 to 27C (60 to 80F).8.5.4.2 The marker shall be dropped onto a specified impact area as a completely assembled operational unit without projectiles.8.5.4.3 Hold the marker at a height of 0.93 m (3 ft, 0.5 in.) above the tile floor area, measured from the point on the markerthat is nearest the tile floor area. The sample shall be allowed to come
