ASTM D7326-21

Standard Practice for Handling, Transportation, and Storage of HFC Blend B (CH<inf >2</inf>FCF<inf>3</inf>, CHF<inf>2</inf>CF<inf>3</inf>, and CO<inf >2</inf>)

SIGNIFICANCE AND USE
4.1 This practice provides requirements for the handling, transportation, and storage of HFC Blend B encountered in distribution through both commercial and military channels. It is intended to ensure that HFC Blend B is handled, transported, and stored in such a way that its physical property virtues are not degraded. Transport may be by various means, such as, but not limited to, highway, rail, water, and air.
SCOPE
1.1 This practice covers guidance and direction to suppliers, reclaimers, purchasers, and users in the handling, transportation, and storage of HFC Blend B.  
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.  
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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

General Information

• Status: Published
• Publication Date: 31-May-2021
• ICS: 71.080.20 - Halogenated hydrocarbons
• Technical Committee: D26 - Halogenated Organic Solvents and Fire Extinguishing Agents
• Drafting Committee: D26.09 - Fire Extinguishing Agents

Standards Content (Sample)

This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: D7326 − 21
Standard Practice for
Handling, Transportation, and Storage of HFC Blend B
1
(CH FCF , CHF CF , and CO )
2 3 2 3 2
This standard is issued under the fixed designation D7326; 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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope C-7 Guide to Classification and Labeling of Compressed
Gases
1.1 This practice covers guidance and direction to suppliers,
P-1 Standard for Safe Handling of Compressed Gases in
reclaimers, purchasers, and users in the handling,
Containers
transportation, and storage of HFC Blend B.
4
2.3 U.S. Government Standards:
1.2 The values stated in inch-pound units are to be regarded
49 CFR Part 172 Hazardous Materials Table, Special
as standard. The values given in parentheses are mathematical
Provisions, Hazardous Materials Communications, Emer-
conversions to SI units that are provided for information only
gency Response Information, Training Requirements, and
and are not considered standard.
Security Plans
1.3 This standard does not purport to address all of the 49 CFR Part 172.101 Purpose and Use of Hazardous Mate-
safety concerns, if any, associated with its use. It is the
rials Table
responsibility of the user of this standard to establish appro- 49 CFR Part 173 Shippers—General Requirements for Ship-
priate safety, health, and environmental practices and deter-
ments and Packagings
mine the applicability of regulatory limitations prior to use. 49 CFR Part 178 Specifications for Packagings
1.4 This international standard was developed in accor-
49 CFR Part 180 Continuing Qualification and Maintenance
dance with internationally recognized principles on standard- of Packagings
ization established in the Decision on Principles for the
3. Terminology
Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical
3.1 Definitions of Terms Specific to This Standard:
Barriers to Trade (TBT) Committee.
3.1.1 containers, n—storage vessels for HFC Blend B.
3.1.2 cylinders, n—containers of HFC Blend B.
2. Referenced Documents
2 3.1.3 HFC Blend B, n—tertiary blend comprised of HFC-
2.1 ASTM Standard:
134a (1,1,1,2-tetrafluoroethane), HFC-125
D7327 Specification for HFC Blend B (CH FCF ,
2 3
(pentafluoroethane), and carbon dioxide (CO ); a compound
2
CHF CF , and CO )
2 3 2
3 used to inert, extinguish, or suppress a fire or explosion hazard.
2.2 CGA Standards:
3.1.4 insulated, adj—placed in an isolated situation to pro-
C-1 Methods for Pressure Testing Compressed Gas Cylin-
tect and prevent the transfer of damage.
ders
C-6 Standards for Visual Inspection of Steel Compressed
4. Significance and Use
Gas Cylinders
4.1 This practice provides requirements for the handling,
transportation, and storage of HFC Blend B encountered in
1
This practice is under the jurisdiction of ASTM Committee D26 on Haloge-
distribution through both commercial and military channels. It
nated Organic Solvents and Fire Extinguishing Agents and is the direct responsi-
bility of Subcommittee D26.09 on Fire Extinguishing Agents. is intended to ensure that HFC Blend B is handled, transported,
Current edition approved June 1, 2021. Published June 2021. Originally
and stored in such a way that its physical property virtues are
approved in 2006. Last previous edition approved in 2017 as D7326-17. DOI:
not degraded. Transport may be by various means, such as, but
10.1520/D7326-21.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or not limited to, highway, rail, water, and air.
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on
4
the ASTM website. Code of Federal Regulations (CFR) documents are available from U.S.
3
Available from Compressed GasAssociation (CGA), 8484 Westpark Dr., Suite Government Publishing Office (GPO), 732 N. Capitol Street, NW, Washington, DC
220, McLean, VA 22102, http://www.cganet.com. 20401, http://www.gpo.gov.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D7326 − 21
3 3
5. Practice B shall be 58 lb/ft (930 kg/m ). Filling density requirements
arespecifiedin49CFRPart173.304and49CFRPart173.305.
5.1 To ensure safe handling, loading, unloading, storing,
5.2.5 Handling of materials should be done in a manner that
and transporting of
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: D7326 − 17 D7326 − 21
Standard Practice for
Handling, Transportation, and Storage of HFC Blend B
1
(CH FCF , CHF CF , and CO )
2 3 2 3 2
This standard is issued under the fixed designation D7326; 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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope
1.1 This practice covers guidance and direction to suppliers, reclaimers, purchasers, and users in the handling, transportation, and
storage of HFC Blend B.
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical
conversions to SI units that are provided for information only and are not considered standard.
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 safety, health, and healthenvironmental practices and determine the
applicability of regulatory limitations prior to use.
1.4 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2
2.1 ASTM Standard:
D7327 Specification for HFC Blend B (CH FCF , CHF CF , and CO )
2 3 2 3 2
3
2.2 CGA Standards:
C-1 Methods for Pressure Testing Compressed Gas Cylinders
C-6 StandardStandards for Visual Inspection of Steel Compressed Gas Cylinders
C-7 Guide to Classification and Labeling of Compressed Gases
P-1 Standard for Safe Handling of Compressed Gases in Containers
SB-1 Safety Bulletin: Hazards of Refilling or Reusing Compressed Refrigerant (Halogenated Hydrocarbon) Gas Cylinders
SB-18 Safety Bulletin: Use of Refrigerant (Halogenated Hydrocarbons) Recovery Cylinders
4
2.3 U.S. Government Standards:
49 CFR Title 49, Part 172, U.S. Department of Transportation (DOT),Part 172 Hazardous Materials Table, Special Provisions,
Hazardous Materials Communications, Emergency Response Information, and Training RequirementsTraining Requirements,
and Security Plans
1
This practice is under the jurisdiction of ASTM Committee D26 on Halogenated Organic Solvents and Fire Extinguishing Agents and is the direct responsibility of
Subcommittee D26.09 on Fire Extinguishing Agents.
Current edition approved Feb. 1, 2017June 1, 2021. Published February 2017June 2021. Originally approved in 2006. Last previous edition approved in 20122017 as
D7326-12.-17. DOI: 10.1520/D7326-17.10.1520/D7326-21.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Available from Compressed Gas Association (CGA), 14501 George Carter Way, Suite 103, Chantilly, VA 20151,8484 Westpark Dr., Suite 220, McLean, VA 22102,
http://www.cganet.com.
4
Available Code of Federal Regulations (CFR) documents are available from U.S. Government Publishing Office (GPO), 732 N. Capitol Street, NW, Washington, DC
20401-0001,20401, http://www.gpo.gov.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D7326 − 21
49 CFR Title 49, Part 172.101, U.S. DOT,Part 172.101 Tables Purpose and Use of Hazardous Materials and Special
ProvisionsTable
49 CFR Title 49, Part 173, U.S. DOT,Part 173 Shippers-GeneralShippers—General Requirements for ShippingShipments and
Packagings
49 CFR Title 49, Part 178, U.S. DOT,Part 178 Specifications for Packagings
49 CFR Title 49, Part 180, U.S. DOT,Part 180 Continuing Qualification and Maintenance of Packagings
3. Terminology
3.1 Definitions of Terms Specific to This Standard:
3.1.1 containers—containers, n—storage vessels for HFC Blend B.
3.1.2 cylinders—cylinders, n—containers of HFC Blend B.
3.1.3 HFC Blend B—B, n—tertiary blend comprised of HFC-134a (1,1,1,2-tetrafluoroethane), HFC-125 (pentafluoroethane), and
carbon dioxide (CO ); a compound used to inert, extinguish, or suppress a fire or explosion hazard.
2
3.1.4 insulated—insulated, adj—placed in an isolated situation
...