1、Designation: F2856 11aStandard Practice forTransfilling and Safe Handling of Small CO2Cylinders forUse in Paintball1This standard is issued under the fixed designation F2856; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year
2、 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 practice is intended to satisfy the demand forinformation on the basic procedures for the safe handling andtr
3、ansfilling of small (not bulk) paintball CO2cylinders com-monly used with a paintball marker for propulsion of apaintball. This standard does not address issues dealing withthe transfilling, storage, and handling of supply cylinders thatmay be used in transfilling smaller cylinders.1.2 The CO2fill p
4、rocedures are written for the pressurecycling cylinder transfilling method most commonly used bypaintball field and/or store operators.1.3 This practice should not be confused with federal, state,provincial, or municipal specifications or regulations; insur-ance requirements; or national safety code
5、s.1.4 This practice does not purport to address all of thesafety problems, if any, associated with the safe handling andtransfilling of small paintball cylinders. It is the responsibilityof the user of this standard to establish appropriate safetypractices and determine the applicability of regulato
6、ry limita-tions, such as and not limited to DOT, CGA, and OSHA, priorto use.2. Referenced Documents2.1 ASTM Standards:2F1979 Specification for Paintballs Used in the Sport ofPaintballF2030 Specification for Paintball Cylinder Burst Disk As-sembliesF2553 Specification for Warnings on Refillable CO2Cy
7、lin-ders Used In the Sport of Paintball2.2 CGA Standards:3CGA G-6.3 Carbon Dioxide Cylinder Filling and HandlingProceduresCGA C-6-2005 Standards for visual inspection of steelcompressed gas cylindersCGA C-6.1 2006 Standards for visual inspection of highpressure aluminum compressed gas cylindersCGA G
8、-6.8 2007 Transfilling and safe handling of smallcarbon dioxide cylindersTB-14 Torque Guidelines For Sealing CGA Valve OutletConnections2.3 Other Standards:CFR 49 Parts 100 to 18543. Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 authorized retester, nfacility registered with an
9、dapproved by DOT for the requalification of cylinders.3.1.2 blow-down valve, nvalve which is part of a fillstation assembly, and which is intended to vent gas from thepaintball cylinder and fill station being filled.3.1.3 fill station, ndevice designed to attach to a supplycylinder and to a paintbal
10、l cylinder, which facilitates transfill-ing the paintball cylinder.3.1.4 paintball, nspherical ball, commonly with a diam-eter of 17.3 mm (0.68 in.), comprised of a shell and a fill,designed to be expelled from a paintball marker and conform-ing to Specification F1979.3.1.5 valve twist test, ntest d
11、one by hand where as theuser grasp the valve with one hand and the bottle with the otherand attempts to turn the valve by hand in a counter- clockwisedirection (left).3.1.5.1 DiscussionIf the valve does move, the valve andbottle should not be filled and should be repaired and/orserviced by the manuf
12、acturer or its authorized representative. Ifthe valve does not move then the valve passes the test and maybe filled provided it passes all other requirements. The testshould only be done when the cylinder is empty and withoutany tools.1This practice is under the jurisdiction of ASTM Committee F08 on
13、 SportsEquipment and Facilities and is the direct responsibility of Subcommittee F08.24 onPaintball and Equipment.Current edition approved Nov. 1, 2011. Published December 2011. Originallyapproved in 2011. Last previous edition approved in 2011 as F2856 11. DOI:10.1520/F2856-11A.2For referenced ASTM
14、 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 Compressed Gas Association, 4221 Walney Road, 5th Floor,Chantilly
15、, VA 20151.4Available from U.S. Government Printing Office Superintendent of Documents,732 N. Capitol St., NW, Mail Stop: SDE, Washington, DC 20401, http:/www.access.gpo.gov.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.3.2 Acronym
16、s:3.2.1 DOTdepartment of transportation3.2.2 RINretester identification number3.2.3 TCtransport Canada4. General Considerations4.1 Persons, who are transfilling carbon dioxide (CO2),must be trained in the hazards associated with liquid carbondioxide. Contact between exposed skin and cold piping, orc
17、arbon dioxide can cause frost burns or can present otherhazardous situations.4.2 Always wear heavy gloves and eye protection whilefilling cylinders.4.3 Always have the MSDS at the location that the fillingtakes place.4.4 Always read and understand all fill station instructions.4.5 Ensure that there
18、is proper ventilation in the filling area.4.6 Warning posters should be posted near the filling opera-tion. These shall be of appropriate size and posted in a clearlyvisible location. See Fig. 1 and Fig. 2.4.7 The receiving cylinder (paintball cylinder) must be of arefillable type (that is, not disp
19、osable) and the net weight orvolume of gas that it can safely hold stamped on the shoulderor marked on the cylinder.4.8 Supply cylinders must be secured and supported, suchas fastened to a wall or similar immovable structure (that is, notfree standing).4.9 It is recommended that siphon type bulk tan
20、k be used forfilling.Avoid using inverted bulk tanks unless done properly, asshown in CGA G-6.8.FIG. 1 Example of Warning Poster AF2856 11a24.10 Warning signs should be placed at the entrance toconfined areas where high concentrations of carbon dioxide gascan accumulate. These shall be of appropriat
21、e size and postedin a clearly visible location.5. Fill Stations5.1 Fill stations and related equipment should be rated to atleast 1800 psi working pressure.5.2 The transfer hose shall be compatible with liquid CO2and shall have a minimum service pressure of 3000 psi.5.3 Fill stations shall be suppli
22、ed with instructions foroperation by the manufacturer or distributor of the product. SeeFig. 3 and Fig. 4.5.4 Fill stations should be marked or tagged with thefollowing safety warnings:5.4.1 Read owners manual before using.5.4.2 Use only with CO2.5.4.3 Close bulk tank valve when not in use.5.4.4 Ven
23、t down system.6. Cylinder Inspection6.1 Conduct a valve twist test on empty cylinders todetermine if the valve is securely attached to the cylinder. Anycylinders which have valves that can be twisted by hand, orwhich show signs of the valve having been partially removed,must not be filled. The owner
24、s of such cylinders should beFIG. 2 Example of Warning Poster BF2856 11a3warned to have the valve repaired by the manufacturer or itsauthorized representative, prior to using the cylinder or attach-ing it to a marker. See Fig. 5.6.2 Look for a rotation indication mark between tank andbottle. Ensure
25、line matches between two pieces. IF THE LINEDOES NOT MATCH DO NOT FILL THE CYLINDER. SeeFig. 6.6.3 If no line is present place a non removable, non etchingmarking between the valve and bottle for future checks.Apaintpen is a good item to use to apply the rotation indication mark.FIG. 3 Example of Fi
26、ll Station Instruction Sheet AFIG. 4 Example of Fill Station Instruction Sheet BFIG. 5 Warning Label From Specification F2553.F2856 11a46.4 Visually inspect the cylinder condition before each fill.6.4.1 Cylinders must be stamped on the shoulder with aDOT (Department of Transportation) and potentiall
27、y a TC(Transport Canada) mark, working pressure, manufacturerscode or name, serial number, hydrostatic test date and ratedCO2capacity. If no stamping is present or stamping has beenaltered or non legible, do not use the cylinder. See Fig. 7.6.4.2 The pressure rating stamped on the cylinder must be a
28、tleast 1800 psi.6.4.3 Cylinders must be in good condition: free of stickers,large dents, scrapes, bulges, obvious corrosion, pits, evidenceof fire damage and leaks.6.4.4 Cylinders should not be buffed or polished.6.4.5 Cylinders having valves without a rupture disk orpressure relief mechanism must n
29、ot be filled.6.4.6 Pressure relief or rupture disk assembly should betight, and all pressure relief passages should be clear ofobstructions. See Fig. 8.6.4.6.1 Cylinders must have correct burst disk as per Speci-fication F2030; 3AL-1800 CO2cylinders require a 3000 psi(3K) burst disk.6.4.7 The valve
30、and external threading must not be dam-aged, and must be free of foreign material. The valve o-ringmust be in good condition in order to fill. Damaged valves orcomponents must be cleaned or repaired by the manufactureror its authorized representative, prior to filling the cylinder.6.5 Cylinders must
31、 NOT be filled if any one of the follow-ing conditions exists:6.5.1 Cylinders are outside the valid test date range.6.5.1.1 Requalification period for CO2cylinders used inpaintball is five (5) years for 3AL aluminum and 3A and 3AAsteel bottles. There is no maximum life for a 3AL, 3A, and3AA cylinder
32、s as long as the cylinder passes visual andhydrostatic inspections.6.5.2 Aluminum cylinders not exceeding 5 cm (2 in.)outside diameter and less than 61 cm (2 ft) in length are exemptfrom hydrostatic retesting.6.5.3 Presence of water or other liquids in the cylinder.6.5.4 Evidence of internal contami
33、nation such as rust orother particles.6.5.5 External corrosion exceeding 0.8 mm (0.032 in.) indepth or 25 % of surface area.6.5.6 Dents in aluminum bottles that exceed 1.6 mm (0.062in.) with a diameter less than 50.8 mm (2 in.).6.5.7 Dents in steel bottles that exceed 1.6 mm (0.062 in.)with a diamet
34、er less than 10 times the depth of the dent.6.5.8 Scrapes or gouges that decrease the wall thickness ofa cylinder.6.5.9 Visible bulges.6.5.10 Cylinders show evidence of polishing, buffing, weld-ing, grinding, sandblasting, plating, or exposure to high tem-perature over 350F.6.5.11 Any other conditio
35、n that seems unsafe to use shouldnot be filled and should be inspected by a certified DOTauthorized re-tester.FIG. 6 Valve/Cylinder Rotation Indicator MarkingDOT 3AL 1800 M4625 0403 8 oz CO2A051391This cylinder layline of data breaks down like this:DOT Department of Transportation (a Federal Agency)
36、3AL the specification standard the cylinder conforms to1800 the working pressure rating of the cylinderM4625 the manufacturer of the cylinder0403 The hydrostatic test date of the cylinderThe first two digits are the monthThe is the testing agency markThe last two digits are the yearThe above date wo
37、uld be valid to use until April 1, 20088oz CO2 The amount of CO2the cylinder is rated to holdA051391 The serial number of the tankAfter hydrostatic testing the retest date will look like this:Stamped on shoulderG704 5 6 07The first two digits are the monthThe G 7 is the re-testing agency RIN (Re-tes
38、ter ID #)56The RIN number is read in a clock wise direction, G765Contact D.O.T. for RIN informationThe last two digits are the yearThe above date would be valid to use until April 1, 2012FIG. 7 Cylinder Stamping FIG. 8 Pin Valve Showing Burst Disk AssemblyF2856 11a57. CO2Fill Procedures7.1 The safet
39、y relief device, cylinder wall, and valve bodyassembly of all cylinders to be transfilled must be inspected asdescribed in Section 6. If a condition not described in Section6 is found and is of concern of the person transfilling thecylinder, the cylinder must not be filled.7.2 CO2should only be fill
40、ed by weight, never pressure.7.3 If so equipped, close the valve on the paintball cylinder.7.4 Attach the CO2fill station to the supply cylinder. Ensurethat the CGA 320 fittings are used and installed correctly.Ensure that only one (1) correct sealing washer is used.7.5 Deactivate the universal fill
41、 adaptor (UFA). Attach thepaintball cylinder to the CO2fill station using the UFA.7.5.1 Invert the paintball cylinder, open paintball cylindervalve and/or activate the UFAand the blow-down valve to fullydischarge the remaining CO2.7.5.2 Weigh the empty cylinder. Determine the allowablenet weight of
42、CO2and add this value to the empty cylinderweight. This provides the gross weight of a full cylinder. Thebottle should be cool to the touch in order to receive the CO2.7.5.3 If no venting occurs, add 1 to 2 oz and repeat theinversion and depressurization.7.5.4 Conduct a valve twist test on the depre
43、ssurized cylin-der as stated in 6.1 and 6.2.7.6 Fill the cylinder to the proper gross weight.7.6.1 To fill the paintball cylinder, open the valve to thepaintball cylinder, activate the UFA, close the blow-downvalve, and open the supply valve to begin transfer of the CO2.7.7 To complete the transfill
44、ing process, close the supplyvalve, de-activate UFA and the valve of the paintball cylinder,and open the blow-down valve to vent the supply line. Checkthe final weight of the paintball cylinder.7.8 If the final weight is below the allowable gross weight ofthe cylinder, close the transfer valve, open
45、 the blow-downvalve to relieve some pressure from the paintball cylinder andrepeat steps above for filling.7.9 If the final weight exceeds the allowable gross weight ofthe cylinder, vent the excess CO2. Do not overfill the cylinder.7.10 Turn off the supply tank, safely vent down the fillstation and
46、if possible, remove or secure any hoses. Do notleave CO2in the fill station or hoses when not in use.8. Keywords8.1 carbon dioxide; CO2; compressed gas; cylinders; lique-fied; paintball; pressure vessel; rupture disk; transfillingASTM International takes no position respecting the validity of any pa
47、tent rights asserted in connection with any 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 revisio
48、n at any time by the responsible technical 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 com
49、ments will receive careful consideration at 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 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
