1、Designation:D732513Standard Practice forHandling,Transportation,and Storage of IG-541 N2,Ar,CO21This standard is issued under the fixed designation D7325;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A num
2、ber 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 covers guidance and direction to suppliers,purchasers,and users in the handling,transportation,andstorage of IG-541.1.2 The valu
3、es stated in inch-pound units are to be regardedas standard.The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.1.3 This standard does not purport to address all of thesafety concerns,if any,associated with its
4、 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 CGA Standards:2C-1 Methods for Pressure Testing Compressed Gas Cylin-dersC-6 Standards for
5、 Visual Inspection of Steel CompressedGas CylindersC-7 Guide to Preparation of Precautionary Labeling andMarking of Compressed Gas ContainersP-1 Safe Handling of Compressed Gases in Containers2.2 U.S.Government Standards:3Code of Federal Regulations(CFR)Title 40,Part 82.106CFR Title 49,Part 172,U.S.
6、Department of Transportation(DOT),Hazardous Materials Table,Special Provisions,Hazardous Materials Communications,Emergency Re-sponse Information,and Training RequirementsCFR Title 49,Part 172.101,U.S.DOT,Tables of HazardousMaterials and Special ProvisionsCFR Title 49,Part 173,U.S.Department of Tran
7、sportation(DOT)Specifications,Shippers-General Requirements forShipping and PackagingsCFR Title 49,Part 178,U.S.DOT Specifications,Specifi-cations for PackagingsCFR Title 49,Part 180,U.S.DOT,Continuing Qualificationand Maintenance of Packagings3.Terminology3.1 Definitions of Terms Specific to This S
8、tandard:3.1.1 Containersstorage vessels for IG-541.3.1.2 Cylinderscontainers of IG-541.3.1.3 IG-541(N2,Ar,CO2)a mixture used to inert orsuppress a fire or explosion hazard.3.1.4 Insulatedplaced in an isolated situation to protectand prevent the transfer of damage.4.Significance and Use4.1 This pract
9、ice provides requirements for the handling,transportation,and storage of IG-541 encountered in distribu-tion through both commercial and military channels.It isintended to ensure that IG-541 is handled,transported,andstored in such a way that its physical property virtues are notdegraded.Transport m
10、ay be by various means,such as,but notlimited to,highway,rail,and water.5.Practice5.1 To ensure safe handling,loading,unloading,storing,and transporting of material,personnel shall be trained in theCGApublications and CFR regulations as listed in 2.1 and 2.2,respectively.5.2 Handling:5.2.1 Handling
11、shall be in accordance with CGA P-1.5.2.1.1 Personnel who handle or store,or both,cylinders ofIG-541 shall be trained properly to recognize and identify thecharacteristics of the product and the proper methods of safelyhandling full,partially full,and empty cylinders.5.2.2 IG-541 handling shall be i
12、n nonsmoking,heater-free,ventilated areas to preclude product accumulation.Provisionsshall be made to ensure that service areas limit IG-541concentrations to not exceed 52%(10%Sea Level Oxygenequivalency)for 30 s and 7%(19.5%Sea Level OxygenEquivalency)for 8 h.1This practice is under the jurisdictio
13、n of ASTM Committee D26 on Haloge-nated Organic Solvents and Fire Extinguishing Agents and is the direct responsi-bility of Subcommittee D26.09 on Fire Extinguishing Agents.Current edition approved March 15,2013.Published April 2013.Originallyapproved in 2007.Last previous edition approved in 2007 a
14、s D7325 07.DOI:10.1520/D7325-13.2Available from Compressed Gas Association.3Available from Superintendent of Documents,US Government Printing Office,Washington,DC 20036.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 5.2.3 Cylinders shall
15、 not be overfilled.The maximum per-mitted filling density for pure IG-541 shall be.088 lb/ft3(1.409kg/m3).Filling density requirements are specified in CFR Title49,173.304 and CFR Title 49,173.305.5.2.4 Cylinders shall be free of dirt and contamination thatwould contribute to or would cause deterior
16、ation of productduring shipment or storage.Precautions should be taken toprevent the entry of oil,water,or any other foreign matter intocontainers.Unique coatings or preservatives applied prior toshipment to protect the containers are not considered contami-nation.5.3 Transportation:5.3.1 Transportation shall be as specified in accordance withDOT regulations of CFR Title 49.5.3.1.1 The minimum design pressure requirements shall beas indicated in CFR Title 49,Part 173.301.The pressure insidethe c
