1、Designation:D732421Standard Practice forHandling,Transportation,and Storage of IG-55 Ar N21This standard is issued under the fixed designation D7324;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number i
2、n 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-55.1.2 The values sta
3、ted 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 use.I
4、t 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 principles on s
5、tandard-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 Standards2C-1 Methods for Pressure Testing Compressed Gas
6、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,Hazardous
7、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 180 Cont
8、inuing Qualification and Maintenanceof Packagings3.Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 containers,nstorage vessels for IG-55.3.1.2 cylinders,ncontainers of IG-55.3.1.3 IG-55(nitrogen,argon),na mixture used to inert orsuppress a fire or explosion hazard.3.1.4 insulated
9、,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-55 encountered in distributionthrough both commercial and military channels.It is intendedto ensure that
10、IG-55 is handled,transported,and stored in sucha way that its physical property virtues are not degraded.Transport may be by various means,such as,but not limited to,highway,rail,and water.5.Practice5.1 To ensure safe handling,loading,unloading,storing,and transporting of material,personnel shall be
11、 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-55 shall be trained properly to reco
12、gnize and identify thecharacteristics of the product and the proper methods of safelyhandling full,partially full,and empty cylinders.5.2.2 All IG-55 transfers between storage containers andrecycling processes shall be performed by personnel trained inhandling procedures.1This practice is under the
13、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 approved i
14、n 2013 as D7324 13.DOI:10.1520/D7324-21.2Available from Compressed Gas Association(CGA),8484 Westpark Drive,Suite 220,McLean,VA 22102,http:/.3Code of Federal Regulations(CFR)documents are available from U.S.Government Publishing Office(GPO),732 N.Capitol St.,NW,Washington,DC20401,http:/www.gpo.gov.C
15、opyright 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 Internation
16、al Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.15.2.3 The IG-55 recycling and transfer processes shall be inconjunction with the equipment specified by the manufacturer5.2.4 The handling of IG-55 shall be in nonsmoking,heater-free,ventilated areas to preclude product accumulation.Provi-sions shall be made to ensure that service area IG-55 concen-trations do not exceed 52%(10%Sea Level Oxygenequivalency)for 30 s and 7%(19.5
