1、Designation:D732521Standard 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,health,and environmental practices and deter-mine the applicability of regulatory limitations prior to use.1.4 This international standard was developed in accor-dance with internationally recognized principle
5、s on standard-ization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 CGA Standards:2C-1 Methods for Pressure Testing Compress
6、ed Gas Cylin-dersC-6 Standards for Visual Inspection of Steel CompressedGas CylindersC-7 Guide to Classification and Labeling of CompressedGasesP-1 Standard for Safe Handling of Compressed Gases inContainers2.2 U.S.Government Standards:349 CFR Part 172 Hazardous Materials Table,SpecialProvisions,Haz
7、ardous Materials Communications,Emer-gency Response Information,Training Requirements,andSecurity Plans49 CFR Part 172.101 Purpose and Use of Hazardous Mate-rials Table49 CFR Part 173 ShippersGeneral Requirements for Ship-ments and Packagings49 CFR Part 178 Specifications for Packagings49 CFR Part 1
8、80 Continuing Qualification and Maintenanceof Packagings3.Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 containers,nstorage vessels for IG-541.3.1.2 cylinders,ncontainers of IG-541.3.1.3 IG-541(N2,Ar,CO2),na mixture used to inert orsuppress a fire or explosion hazard.3.1.4 insu
9、lated,adjplaced in an isolated situation to pro-tect and prevent the transfer of damage.4.Significance and Use4.1 This practice provides requirements for the handling,transportation,and storage of IG-541 encountered in distribu-tion through both commercial and military channels.It isintended to ensu
10、re that IG-541 is handled,transported,andstored in such a way that its physical property virtues are notdegraded.Transport may 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 s
11、hall be trained in theCGApublications and CFR regulations as listed in 2.1 and 2.2,respectively.5.2 Handling:5.2.1 Handling shall be in accordance with CGA Publica-tion P-1 and as specified by the manufacturer.5.2.1.1 Personnel who handle or store,or both,cylinders ofIG-541 shall be trained properly
12、 to recognize and identify thecharacteristics of the product and the proper methods of safelyhandling full,partially full,and empty cylinders.5.2.2 All IG-541 transfers between storage containers andrecycling processes shall be performed by personnel trained inhandling procedures.1This practice is u
13、nder the jurisdiction 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 June 1,2021.Published June 2021.Originallyapproved in 2007.Last previous edition a
14、pproved in 2013 as D7325 13.DOI:10.1520/D7325-21.2Available from Compressed Gas Association(CGA),8484 Westpark Drive,Suite 220,McLean,VA 22102,https:/.3Code of Federal Regulations(CFR)documents are available from U.S.Government Publishing Office(GPO),732 N.Capitol St.,NW,Washington,DC20401,https:/ww
15、w.gpo.gov.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of
16、International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.15.2.3 The IG-541 recycling and transfer processes shall bein conjunction with the equipment specified by the manufac-turer.5.2.4 The handling of IG-541 shall be in nonsmoking,heater-free,ventilated areas to preclude product accumulation.Provisions shall be made to ensure that service area IG-541concentrations do not exceed 52%(10%Sea Level Oxygenequivalency)for 30
