1、Designation: D6427/D6427M 10Standard Practice forHandling, Transportation, and Storage of HFC-236fa,1,1,1,3,3,3-Hexafluoropropane (CF3CH2CF3)1This standard is issued under the fixed designation D6427/D6427M; the number immediately following the designation indicates theyear of original adoption or,
2、in the case of revision, the year of last revision. A number in parentheses indicates the year of lastreapproval. A superscript 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
3、 the handling, transportation, andstorage of HFC236fa.1.2 The values stated in either SI units or inch-pound unitsare to be regarded separately as standard. The values stated ineach system may not be exact equivalents; therefore, eachsystem shall be used independently of the other. Combiningvalues f
4、rom the two systems may result in non-conformancewith the 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 and health practices and determine the ap
5、plica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2D6541 Specification for HFC-236fa, 1,1,1,3,3,3Hexafluo-ropropane, (CF3CH2CF3)2.2 CGA Standards:3C-6 Standards for Visual Inspection of Steel CompressedGas CylindersC-7 Guide to Preparation of Precautionary
6、 Labeling andMarking of Compressed Gas ContainersP-1 Safe Handling of Compressed Gases in ContainersSB-1 Hazards of Refilling Compressed Refrigerant (Halo-genated Hydrocarbon) Gas CylindersSB-5 Hazards of Reusing Disposable Refrigerant (Haloge-nated Hydrocarbon) Gas CylindersSB-18 Use of Refrigerant
7、 (Halogenated Hydrocarbon) Re-covery Cylinders2.3 U.S. Government Standards:4Code of Federal Regulations (CFR) Title 40, Part 82.106Code of Federal Regulations (CFR) Title 49, Part 173 U.S.Department of Transportation (DOT) Specifications,Shippers-General Requirements for Shipping and Packag-ingsCod
8、e of Federal Regulations (CFR) Title 49, Part 178 U.S.DOT Specifications for PackagingsCode of Federal Regulations (CFR) Title 49, Part180 Qualification and Maintenance of Packages3. Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 containersstorage vessel for HFC-236fa.3.1.2 cyli
9、nderscontainers of HFC-236fa.3.1.3 HFC-236fa1,1,1,3,3,3-hexafluoropropane, a com-pound used to inert or suppress 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 practice provides requirements for t
10、he handling,transportation, and storage of HFC236fa encountered indistribution through both commercial and military channels. Itis intended to ensure that HFC-236fa is handled, transported,and stored in such a way its physical properties are notdegraded. Transport may be by various means, such as, b
11、ut notlimited to, highway, rail, water, and air.5. Practice5.1 To ensure safe handling, loading, unloading, storing,and transporting of material, personnel shall be trained in theCGA publications and Title 49 CFR regulations as listed in 2.2and 2.3, respectively.5.2 Handling:5.2.1 Handling shall be
12、in accordance with P-1, Safe Han-dling of Compressed Gases in Containers.5.2.1.1 Personnel who handle or store, or both, cylinders ofHFC-236fa shall be trained properly to recognize and identify1This practice is under the jurisdiction of ASTM Committee D26 on Haloge-nated Organic Solvents and Fire E
13、xtinguishing Agents and is the direct responsi-bility of Subcommittee D26.09 on Fire Extinguishing Agents.Current edition approved June 1, 2010. Published July 2010. Originally approvedin 1999. Last previous edition approved in 2004 as D6427-99(2004). DOI:10.1520/D6427_D6427M-10.2For 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 (CGA), 4221 Walney Rd., 5thFloor, Chan
15、tilly, VA 20151-2923, http:/.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
16、States.the characteristics of the product and the proper methods ofsafely handling full, partly full, and empty cylinders.5.2.2 All HFC-236fa transfers between storage containersand recycling processes shall be performed by personneltrained in handling procedures.5.2.2.1 Facility personnel must be t
17、rained in applicableCode of Federal Regulations (CFR) Title 49, Part 173 andCode of Federal Regulations (CFR) Title 49, Part 178, and theCGA documents referenced in 2.2.5.2.3 The HFC-236fa recycling and transfer processes shallbe in conjunction with the equipment specified by the manu-facturer.5.2.4
18、 The handling of HFC-236fa shall be in nonsmoking,heater-free, ventilated areas to preclude product accumulation.Provisions shall be made to ensure that service areas limitHFC-236fa concentrations to not exceed 15 % for 1 min and0.1 % for 8 h.5.2.5 Cylinders shall not be over filled. The liquid port
19、ion ofthe liquefied gases must not completely fill the containersinternal volume at any temperature up to and including 130F54C. The maximum permitted filling density for HFC-236fashall be 78 lb/ft31249 kg/m3. The maximum permitted fillingdensity for HFC-236fa pressurized with nitrogen to 360 psig25
20、.8 bar at 70F 21C shall be 72 lb/ft31153 kg/m3. Themaximum permitted filling density for HFC-236fa pressurizedwith nitrogen to 600 psig 42.4 bar at 70F 21C shall be 70lb/ft31121 kg/m3. Filling density requirements are specifiedin Code of Federal Regulations (CFR) Title 49, Part 173 andTitle 49 CFR,
21、173.305.5.2.6 Handling of materials should be done in a manner thatprevents contamination or commingling of materials other thanHFC-236fa.5.2.7 Cylinders shall be free of dirt and contamination thatwould contribute to or would cause deterioration of the productduring shipment or storage. Precautions
22、 should be taken toprevent the entry of oil, water, or any other foreign matter intothe container. Unique coatings or preservatives applied prior toshipment to protect the containers are not considered contami-nation.5.3 Transportation:5.3.1 Shipment of materials between distributors, collectors,rec
23、yclers, and reclaimers shall be as specified in accordancewith DOT regulations of Title 49 CFR.5.3.1.1 The minimum design pressure requirements shall beas stated in Title 49 CFR, Part 173.301. The pressure inside thecontainer at 70F 21C shall not exceed the service pressurefor which the container is
24、 marked. The pressure inside thecontainer at 130F 54C shall not exceed54 the servicepressure for which the container is marked. Fig. 1 illustrate thesaturated vapor pressure of HFC-236fa. Fig. 2 and Fig. 3illustrate the effect of temperature on cylinders filled withHFC-236fa and super pressurized wi
25、th nitrogen at 70F 21Cto 360 psig 25.8 bar and 600 psig 42.4 bar, respectively.5.3.2 Transportation shall be in suitable vehicles to precludecylinder damage by excessive mechanical vibration, shock,freezing, or deleterious high temperatures throughout the entiretransport route.FIG. 1 Saturated Vapor
26、 Pressure of HFC-236faD6427/D6427M 1025.3.2.1 If cylinders are expected to be subject to unaccept-able transport conditions, the cylinders should be placed underinsulated conditions.5.3.3 Compressed Gas Cylinder permanent marking re-quirements shall be as specified under Code of FederalRegulations (
27、CFR) Title 49, Part 178 and must be maintainedin legible condition as required by Code of Federal Regulations(CFR) Title 49, Part 173. Warning labels shall be affixed to thecylinders conforming to requirements of Code of FederalRegulations (CFR) Title 40, Part 82.106.5.4 Storage:5.4.1 Storage shall
28、be in accordance with P-1, in qualifiedcylinders in accordance with Code of Federal Regulations(CFR) Title 49, Part 173 and Code of Federal Regulations(CFR) Title 49, Part 178.5.4.2 The cylinder should be stored in areas that will protectvessels from physical and environmental damage, and tamper-ing
29、 from unauthorized personnel.5.4.2.1 Facilities should be constructed and orientated sothat safety requirements are fulfilled for storage of pressurizedcylinders.5.4.3 Storage cylinders shall be fitted with pressure releasemechanisms to limit vessel pressure to not more than theminimum required test
30、 pressure of the cylinder. Safety reliefvalves shall be set at not less than 75 %, nor more than 100 %FIG. 2 Isometric Diagram of HFC-236fa Pressurized to 360 psig 25.8 bar with Nitrogen at 70F 21CFIG. 3 Isometric Diagram of HFC-236fa Pressurized to 600 psig 42.4 bar with Nitrogen at 70F 21CD6427/D6
31、427M 103of the minimum required test pressure of the cylinder. Safetyrelief valves shall be in contact with the vapor space of thecylinder.5.4.3.1 Periodic hydrostatic testing and reinspection of cyl-inders used for HFC-236fa shall comply with Code of FederalRegulations (CFR) Title 49, Part 180.5.4.
32、4 Containers shall be clearly marked and labeled toidentify whether the HFC-236fa container conforms to theASTM specification.55.4.5 Insulation shall be placed on pallets or shoring, andprovisions should be made to prevent excessive shock orthermal fluctuations to cylinders.5.4.6 Cylinders shall be
33、stored in a manner that will preventcontamination from external sources.5.4.6.1 If HFC-236fa meeting the standards of SpecificationD6541 is stored in the same area as material not meeting thisrequirement, storage shall be segregated or clearly identifiableas not similar.6. Inspection6.1 The HFC-236f
34、a that is reclaimed using approved recla-mation systems may be released for reissue, provided testexamination to validate the material to specification is fulfilled.6.1.1 Reclaimed HFC-236fa that cannot be proven to com-ply with ASTM specifications for HFC-236fa shall not bereissued. The material sh
35、all be processed by environmentallyacceptable methods until conformance to the product standardis achieved.7. Keywords7.1 CF3CH2CF3; compressed gas; compressed liquefied gas;cylinders; explosion suppressant; FE-366; fire suppressant;handling; HFC-236fa; 1,1,1,3,3,3-hexafluoropropane; storage;transpo
36、rt, reclamation, recovery, recyclingASTM International takes no position respecting the validity of any patent 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 ris
37、kof infringement of such rights, are entirely their own responsibility.This standard is subject to revision 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 thi
38、s standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments 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
39、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
40、contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org). Permission rights to photocopy the standard may also be secured from the ASTM website (www.astm.org/COPYRIGHT/).5Under development by Subcommittee D26.09.6FE-36 is a trademark of Dupont.D6427/D6427M 104
