ASTM_D_6268_-_21.pdf

Designation:D626821Standard Practice forHandling,Transportation,and Storage of HFC-125,Pentafluoroethane(C2HF5)1This standard is issued under the fixed designation D6268;the number immediately following the designation indicates the year oforiginal adoption or,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 practice covers guidance and direction to suppliers,purchasers,and users in the handling,transportation,andstorage of HFC-125,pentafluoroethane(C2HF5).1.2 The values 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 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 principles 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 ASTM Standard:2D6231 Specification for HFC-125(Pentafluoroethane,C2HF5)2.2 CGA Standards:3C-1 Methods for Pressure Testing Compressed 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 inContainersSB-1 Hazards of Refilling Compressed Refrigerant(Haloge-nated Hydrocarbon)Gas CylindersSB-5 Hazards of Reusing Disposable Refrigerant(Haloge-nated Hydrocarbon)Gas CylindersSB-18 Use of Refrigerant(Halogenated Hydrocarbons)Re-covery Cylinders2.3 U.S.Government Standards:449 CFR Part 172 Hazardous Materials Table,SpecialProvisions,Hazardous 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 Continuing Qualification and Maintenanceof Packagings3.Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 containers,nstorage vessels for HFC-125.3.1.2 cylinders,ncontainers of HFC-125.3.1.3 HFC-125,npentafluoroethane,a compound used toinert,extinguish or suppress a fire or explosion hazard.3.1.4 insulated,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 HFC-125 encountered in distri-bution through both commercial and military channels.It isintended to insure that HFC-125 is handled,transported,andstored in such a way its physical properties are not degraded.Transport may be by various means,such as,but not limited to,highway,rail,water,and air.1This practice is under 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 1998.Last previous edition approved in 2015 as D6268 15.DOI:10.1520/D6268-21.2For referenced ASTM 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 the Compressed Gas Association(CGA),8484 Westpark Drive,Suite 220,M,cLean,VA 22102,http:/.4Code 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.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 International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.15.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 2.2 and 2.3,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 ofHFC-125 shall be trained properly to recognize and identify thecha