ASTM D6427-99
(Practice)Standard Practice for Handling, Transportation, and Storage of HFC-236fa, 1,1,1,3,3,3-Hexafluoropropane (CF3CH2CF3)
Standard Practice for Handling, Transportation, and Storage of HFC-236fa, 1,1,1,3,3,3-Hexafluoropropane (CF<sub>3</sub>CH<sub>2</sub>CF<sub>3</sub>)
SCOPE
1.1 This practice covers guidance and direction to suppliers, purchasers, and users in the handling, transportation, and storage of HFC-236fa.
1.2 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
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Designation: D 6427 – 99
Standard Practice for
Handling, Transportation, and Storage of HFC-236fa,
1,1,1,3,3,3-Hexafluoropropane (CF CH CF )
3 2 3
This standard is issued under the fixed designation D 6427; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope Code of Federal Regulations (CFR) Title 49, Part 178, U.S.
DOT Specifications for Packagings
1.1 This practice covers guidance and direction to suppliers,
purchasers, and users in the handling, transportation, and
3. Terminology
storage of HFC–236fa.
3.1 Definitions of Terms Specific to This Standard:
1.2 The values stated in inch-pound units are to be regarded
3.1.1 containers—storage vessel for HFC-236fa.
as standard. The values given in parentheses are for informa-
3.1.2 cylinders—containers of HFC-236fa.
tion only.
3.1.3 HFC-236fa—1,1,1,3,3,3-hexafluoropropane, a com-
1.3 This standard does not purport to address all of the
pound used to inert or suppress a fire or explosion hazard.
safety concerns, if any, associated with its use. It is the
3.1.4 insulated—placed in an isolated situation to protect
responsibility of the user of this standard to establish appro-
and prevent the transfer of damage.
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use.
4. Significance and Use
4.1 This practice provides requirements for the handling,
2. Referenced Documents
transportation, and storage of HFC–236fa encountered in
2.1 CGA Standards:
distribution through both commercial and military channels. It
No. C-1 Methods for Hydrostatic Testing of Compressed
is intended to ensure that HFC-236fa is handled, transported,
Gas Cylinders
and stored in such a way its physical properties are not
No. C-4 American National Standard Method of Marking
degraded. Transport may be by various means, such as, but not
Portable Compressed Gas Containers to Identify the
2 limited to, highway, rail, water, and air.
Materials Contained
No. C-6 Standards for Visual Inspection of Steel Com-
5. Practice
pressed Gas Cylinders
2 5.1 Personnel shall be trained in Title 49 CFR, Part 172,
No. P-1 Safe Handling of Compressed Gases in Containers
Subpart H, to ensure safe handling, loading, unloading, stor-
No. SB-1 Hazards of Refilling Compressed Refrigerant
2 age, and transportation of material.
(Halogenated Hydrocarbon) Gas Cylinders
5.2 Handling:
No. SB-5 Hazards of Reusing Disposable Refrigerant (Ha-
2 5.2.1 Handling shall be in accordance with CGA Publica-
logenated Hydrocarbon) Gas Cylinders
tion No. P-1, Safe Handling of Compressed Gases in Contain-
No. SB-18 Use of Refrigerant (Halogenated Hydrocarbon)
2 ers.
Recovery Cylinders
5.2.1.1 Personnel who handle or store, or both, cylinders of
2.2 U.S. Government Standards:
3 HFC-236fa shall be trained properly to recognize and identify
Code of Federal Regulations (CFR) Title 40, Part 82.106
the characteristics of the product and the proper methods of
Code of Federal Regulations (CFR) Title 49, Part 173, U.S.
safely handling full, partly full, and empty cylinders.
Department of Transportation (DOT) Specifications,
5.2.2 All HFC-236fa transfers between storage containers
Shippers-General Requirements for Shipping and Packag-
3 and recycling processes shall be performed by personnel
ings
trained in handling procedures.
5.2.2.1 Facility personnel must be trained in applicable Title
49 CFR, Parts 173 and 178, and the CGA documents refer-
This practice is under the jurisdiction of ASTM Committee D–26 on Haloge-
nated Organic Solvents and Fire Extinguishing Agents and is the direct responsi-
enced in 2.1.
bility of Subcommittee D26.09 on Halogenated Fire Extinguishers.
5.2.3 The HFC-236fa recycling and transfer processes shall
Current edition approved June 10, 1999. Published August 1999.
be in conjunction with the equipment specified by the manu-
Available from Compressed Gas Association.
Available from Superintendent of Documents, U.S. Government Printing
facturer.
Office.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
D 6427
5.2.4 The handling of HFC-236fa shall be in nonsmoking, 5.3.1.1 The minimum design pressure requirements shall be
heater-free, ventilated areas to preclude product accumulation. as stated in Title 49 CFR, Part 173.301. The pressure inside the
Provisions shall be made to ensure that service areas limit container at 70°F (21°C) shall not exceed the service pressure
HFC-236fa concentrations to not exceed 15 % for 1 min and for which the container is marked. The pressure inside the
0.1 % for 8 h. container at 130°F (54°C) shall not exceed ⁄4 the service
5.2.5 Cylinders shall not be over filled. The liquid portion of pressure for which the container is marked. Fig. 1 illustrates the
the liquefied gases must not completely fill the container’s saturated vapor pressure of HFC-236fa. Fig. 2 and Fig. 3
internal volume at any temperature up to and including 54°C illustrates the effect of temperature on cylinders filled with
(130°F). The maximum permitted filling density for HFC- HFC-236fa and super pressurized with nitrogen at 70°F to 360
3 3
236fa shall be 78 lb/ft (1249 kg/m ). The maximum permitted psig (25.8 bar) and 600 psig (42.4 bar), respectively.
filling density for HF
...
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