1、Designation: D 6427 99 (Reapproved 2004)Standard Practice forHandling, Transportation, and Storage of HFC-236fa,1,1,1,3,3,3-Hexafluoropropane (CF3CH2CF3)1This standard is issued under the fixed designation D 6427; the number immediately following the designation indicates the year oforiginal adoptio
2、n or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 This practice covers guidance and direction to suppliers,purchasers, and u
3、sers in the handling, transportation, andstorage of HFC236fa.1.2 The values stated in SI units are to be regarded asstandard. The values given in parentheses are for informationonly.1.3 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theres
4、ponsibility 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:No. C-6 Standards for Visual Inspection of Steel Com-pressed Gas Cylinders2No. C-7 Guide to
5、Preparation of Precautionary Labeling andMarking of Compressed Gas Containers2No. P-1 Safe Handling of Compressed Gases in Containers2No. SB-1 Hazards of Refilling Compressed Refrigerant(Halogenated Hydrocarbon) Gas Cylinders2No. SB-5 Hazards of Reusing Disposable Refrigerant (Ha-logenated Hydrocarb
6、on) Gas Cylinders2No. SB-18 Use of Refrigerant (Halogenated Hydrocarbon)Recovery Cylinders22.2 U.S. Government Standards:Code of Federal Regulations (CFR) Title 40, Part 82.1063Code of Federal Regulations (CFR) Title 49, Part 173, U.S.Department of Transportation (DOT) Specifications,Shippers-Genera
7、l Requirements for Shipping and Packag-ings3Code of Federal Regulations (CFR) Title 49, Part 178, U.S.DOT Specifications for Packagings3Code of Federal Regulations (CFR) Title 49, Part180, Qualification and Maintenance of Packages33. Terminology3.1 Definitions of Terms Specific to This Standard:3.1.
8、1 containersstorage vessel for HFC-236fa.3.1.2 cylinderscontainers 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 a
9、nd Use4.1 This practice provides requirements for the 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 notdegr
10、aded. Transport may be by various means, such as, but notlimited to, highway, rail, water, and air.5. Practice5.1 Personnel shall be trained in Title 49 CFR, Part 172,Subpart H, to ensure safe handling, loading, unloading, stor-age, and transportation of material.5.2 Handling:5.2.1 Handling shall be
11、 in accordance with CGA Publica-tion No. P-1, Safe Handling of Compressed Gases in Contain-ers.5.2.1.1 Personnel who handle or store, or both, cylinders ofHFC-236fa shall be trained properly to recognize and identifythe characteristics of the product and the proper methods ofsafely handling full, pa
12、rtly 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 trained in applicable Title49 CFR, Parts 173 and 178, and the CGA documents refer-enced in 2
13、.1.1This 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 Halogenated Fire Extinguishers.Current edition approved May 1, 2004. Published June 2004.Originally approvedin
14、1999. Last previous edition approved in 1999 as D 6427-99.2Available from Compressed Gas Association.3Available from Superintendent of Documents, U.S. Government PrintingOffice.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.5.2.3 Th
15、e HFC-236fa recycling and transfer processes shallbe in conjunction with the equipment specified by the manu-facturer.5.2.4 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-2
16、36fa concentrations to not exceed 15 % for 1 min and0.1 % for 8 h.5.2.5 Cylinders shall not be over filled. The liquid portion ofthe liquefied gases must not completely fill the containersinternal volume at any temperature up to and including 54C(130F). The maximum permitted filling density for HFC-
17、236fa shall be 1249 kg/m3(78 lb/ft3). The maximum permittedfilling density for HFC-236fa pressurized with nitrogen to 25.8bar (360 psig) at 21C (70F) shall be 1153 kg/m3(72 lb/ft3).The maximum permitted filling density for HFC-236fa pres-surized with nitrogen to 42.4 bar (600 psig) at 21C (70F)shall
18、 be 1121 kg/m3(70 lb/ft3). Filling density requirements arespecified in Title 49 CFR, 173 and Title 49 CFR, 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 contaminatio
19、n thatwould contribute to or would cause deterioration of the productduring shipment or storage. Precautions 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 c
20、onsidered contami-nation.5.3 Transportation:5.3.1 Shipment of materials between distributors, collectors,recyclers, 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.
21、 The pressure inside thecontainer at 21C (70F ) shall not exceed the service pressurefor which the container is marked. The pressure inside thecontainer at 54C (130F) shall not exceed54 the servicepressure for which the container is marked. Fig. 1 illustrate thesaturated vapor pressure of HFC-236fa.
22、 Fig. 2 and Fig. 3illustrate the effect of temperature on cylinders filled withHFC-236fa and super pressurized with nitrogen at 21C (70F)to 25.8 bar (360 psig) and 42.4 bar (600 psig), respectively.5.3.2 Transportation shall be in suitable vehicles to precludecylinder damage by excessive mechanical
23、vibration, shock,freezing, or deleterious high temperatures throughout the entiretransport route.5.3.2.1 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-quiremen
24、ts shall be as specified under Part 178 of Title 49 CFRand must be maintained in legible condition as required by Part173 of Title 49 CFR. Warning labels shall be affixed to thecylinders conforming to requirements of Part 82.106 of Title 40CFR.5.4 Storage:5.4.1 Storage shall be in accordance with C.
25、G.A. Publica-tion No. P-1, in qualified cylinders in accordance with Parts173 and 178 of Title 49 CFR.FIG. 1 Saturated Vapor Pressure of HFC-236faD 6427 99 (2004)25.4.2 The cylinder should be stored in areas that will protectvessels from physical and environmental damage, and tamper-ing from unautho
26、rized 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 pressure of
27、the cylinder. Safety reliefvalves shall be set at not less than 75 %, nor more than 100 %of 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
28、-236fa shall comply with Part 180 of CFRTitle 49.5.4.4 Containers shall be clearly marked and labeled toidentify whether the HFC-236fa container conforms to theASTM specification.45.4.5 Insulation shall be placed on pallets or shoring, andprovisions should be made to prevent excessive shock ortherma
29、l fluctuations to cylinders.5.4.6 Cylinders shall be stored in a manner that will preventcontamination from external sources.4Under development by Subcommittee D26.09.FIG. 2 Isometric Diagram of HFC-236fa Pressurized to 25.8 bar (360 psig) with Nitrogen at 21C (70F)FIG. 3 Isometric Diagram of HFC-23
30、6fa Pressurized to 42.4 bar (600 psig) with Nitrogen at 21C (70F)D 6427 99 (2004)35.4.6.1 If HFC-236fa meeting the standards of the ASTMspecification4is stored in the same area as material not meetingthis requirement, storage shall be segregated or clearly identi-fiable as not similar.6. Inspection6
31、.1 The HFC-236fa 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.
32、The material shall 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-36y; fire suppressant;handling; HFC-236fa; 1,1,1,3,3,3-hexafluoropropane;
33、storage;transport, 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 righ
34、ts, and the riskof 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
35、revision of this 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
36、you shouldmake 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 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).D 6427 99 (2004)4
