ASTM D6231-11

Standard Specification for HFC-125 (Pentafluoroethane, C₂HF₅)

ABSTRACT
This specification covers the requirements for HFC-125 (pentafluoroethane, C2HF5) as a fire-fighting medium. It does not however address the fire-fighting equipment or hardware that employs HFC-125, the conditions of employing such equipment like hand helds, fixed installations, etc., or the storage and transportation of HFC-125. Samples of HFC-125 taken in the liquid phase shall be taken from filled containers in accordance to a specific method and shall be tested for quality conformance using gas chromatography, sodium hydroxide titration, and Karl Fischer methods. HFC-125 shall conform to the purity, acidity, water content, nonvolatile residue, presence of fixed gases in the vapor phase, and suspended matter or sediment requirements when tested by the appropriate test methods.
SCOPE
1.1 This specification covers the requirements for HFC-125 as a fire–fighting medium.
1.2 This specification does not address the fire–fighting equipment or hardware that employs HFC-125 or the conditions of employing such equipment, for example, hand helds, fixed installations, etc.
1.3 This specification does not address the storage or transportation of HFC-125. Storage, handling, and transportation issues are addressed in Practice D6268.
1.4 The values stated in both inch-pound and SI units are to be regarded separately as the standard. The values given in parentheses are for information only.
1.5 The following safety hazards caveat pertains to the test methods portion, Section 6, of this specification. 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. Specific hazards statements are given in 4.3.

General Information

• Status: Historical
• Publication Date: 31-Dec-2010
• ICS: 13.220.10 - Fire-fighting
• ICS: 53 - MATERIALS HANDLING EQUIPMENT
• ICS: 71.080.20 - Halogenated hydrocarbons
• Technical Committee: D26 - Halogenated Organic Solvents and Fire Extinguishing Agents
• Drafting Committee: D26.09 - Fire Extinguishing Agents

Relations

• Replaces: ASTM D6231-98(2003) - Standard Specification for HFC-125 (Pentafluoroethane, C₂HF₅)
• Effective Date: 01-Jan-2011
• Referred By: ASTM D6268-21 - Standard Practice for Handling, Transportation, and Storage of HFC-125, Pentafluoroethane (C<inf>2</inf>HF<inf>5</inf>)
• Effective Date: 01-Jan-2011

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:D6231 −11
StandardSpecification for
1
HFC-125 (Pentafluoroethane, C HF )
2 5
This standard is issued under the fixed designation D6231; 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 2.3 ARI Standards:
2008 Appendix C Analytical Procedures for ARI Standard
1.1 This specification covers the requirements for HFC-125
4
700-2006
as a fire–fighting medium.
2.4 U.S. Government Standards:
1.2 This specification does not address the fire–fighting
Code of Federal Regulations (CFR) Title 49, Part 172.101,
equipment or hardware that employs HFC-125 or the condi-
5
Tables of Hazardous Materials and Special Provisions
tions of employing such equipment, for example, hand helds,
Code of Federal Regulations (CFR) Title 49, Part 172
fixed installations, etc.
Subpart D, Marking Requirements of Packaging for
5
1.3 This specification does not address the storage or
Transportation
transportation of HFC-125. Storage, handling, and transporta-
2.5 American Society of Refrigeration Engineers:
tion issues are addressed in Practice D6268. 6
ASRE Standard 34, Designation of Refrigerants
1.4 The values stated in both inch-pound and SI units are to
3. Terminology
be regarded separately as the standard. The values given in
parentheses are for information only.
3.1 Definitions of Terms Specific to This Standard:
3.1.1 halogenated hydrocarbon, n—the halogenated com-
1.5 The following safety hazards caveat pertains to the test
pound coding terminology system provides a convenient
methods portion, Section 6, of this specification. This standard
means to reference halogenated hydrocarbons (see ASRE 34).
does not purport to address all of the safety concerns, if any,
Halogenated hydrocarbons are saturated hydrocarbons in
associated with its use. It is the responsibility of the user of this
which one or more of the hydrogen atoms have been replaced
standard to establish appropriate safety and health practices
byatomsofthehalogenseries:fluorine,chlorine,bromine,and
and determine the applicability of regulatory limitations prior
iodine. It is convention to prefix the number with an abbrevia-
to use. Specific hazards statements are given in 4.3.
tion of the compound:
2. Referenced Documents
CFC = chlorofluorocarbon
2
2.1 ASTM Standards:
HCFC = hydrochlorofluorocarbon
D6268 Practice for Handling,Transportation, and Storage of
HFC = hydrofluorocarbon
HFC-125, Pentafluoroethane (C HF ) FC = fluorocarbon
2 5
D6806 Practice for Analysis of Halogenated Organic Sol- R = refrigerant
vents and Their Admixtures by Gas Chromatography
3.1.1.1 Discussion—By definition, the right–most digit of
2.2 ISO Standards:
the numbering system is the number of fluorine atoms. The
ISO 3427 Gaseous Halogenated Hydrocarbons (Liquefied
second digit from the right is the number of hydrogen atoms
3
Gases) – Taking a Sample
plusone(+1).Thethirddigitfromtherightisoneless(-1)than
number of carbon atoms in the compound (when this number
is zero (0) it is omitted from the number). Unaccounted for
1 valance requirements are assumed to be chlorine atoms. When
This specification is under the jurisdiction of ASTM Committee D26 on
Halogenated Organic Solvents and Fire Extinguishing Agentsand is the direct
thecompoundcontainsbromineoriodine,thesamerulesapply
responsibility of Subcommittee D26.09 on Fire Extinguishing Agents.
except the letter “B” for bromine or “I” for iodine follows the
Current edition approved Jan. 1, 2011. Published August 2011. Originally
approved in 1998. Last previous edition approved in 2003 as D6231-1998(2003).
DOI: 10.1520/D6231-11.
2 4
For referenced ASTM standards, visit the ASTM website, www.astm.org, or Available from theAir Conditioning, Heating and Refrigeration Institute, 4100
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM North Fairfax Drive, Suite 200, Arlington, VA, 22203-1678.
5
Standards volume information, refer to the standard’s Document Summary page on Available from Superintendent of Documents, U.S. Government Printing
the ASTM website. Office, Washington, DC 20036.
3 6
Available from American National Standards Institute, 11 W. 42nd St., 13th Available from American Society of Refrigeration Engineers, Refrigeration
Floor, New York, NY 10036. Engineering 65, 49 (1957).
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

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D6231−11
parent compound designated number and the number of the during periods of elevated adrenaline could produce cardiac
atoms is placed after the letter. arrhythmia in s
...

This document is not anASTM standard and is intended only to provide the user of anASTM 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:D6231–98(Reapproved 2003) Designation: D6231 – 11
Standard Specification for
1
HFC-125 (Pentafluoroethane, C HF )
2 5
This standard is issued under the fixed designation D6231; 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 specification covers the requirements for HFC-125 as a fire–fighting medium.
1.2 This specification does not address the fire–fighting equipment or hardware that employs HFC-125 or the conditions of
employing such equipment, for example, hand helds, fixed installations, etc.
1.3 This specification does not address the storage or transportation of HFC-125. Storage, handling, and transportation issues
are addressed in Practice D D62686268.
1.4.
1.4 The values stated in both inch-pound and SI units are to be regarded separately as the standard. The values given in
parentheses are for information only.
1.5 The following safety hazards caveat pertains to the test methods portion, Section 6, of this specification. 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. Specific
hazards statements are given in 4.3.
2. Referenced Documents
2
2.1 ASTM Standards:
D6268 Practice for Handling, Transportation, and Storage of HFC-125, Pentafluoroethane (C HF ) )
2 5
D6806 Practice for Analysis of Halogenated Organic Solvents and Their Admixtures by Gas Chromatography
2.2 ISO Standards:
ISO 3363Fluorinated Hydrocarbons for Industrial Use – Determination of Acidity – Titration Method
3
ISO 3427Gaseous Halogenated Hydrocarbons (Liquefied Gases) – Taking a Sample
3
ISO 5789Fluorinated Hydrocarbons for Industrial Use – Determination of Nonvolatile Residue Gaseous Halogenated
3
Hydrocarbons (Liquefied Gases) – Taking a Sample
2.3 CGA Standards:
No. C-4American National Standard Method of Marking Portable Compressed Gas Containers to Identify the Material
Contained
4
No. P-1Safe Handling of Compressed Gases in Containers ARI Standards:
4
2008 Appendix C Analytical Procedures for ARI Standard 700-2006
2.4 U.S. Governmental Standards: U.S. Government Standards:
5
Code of Federal Regulations (CFR) Title 49, Part 172.101, Tables of Hazardous Materials and Special Provisions
5
Code of Federal Regulations (CFR) Title 49, Parts 173.302 and 173.304, Preparation and Packaging of Gases
5
Code of Federal Regulations (CFR) Title 49, Part 172 Subpart D, Marking Requirements of Packaging for Transportation
2.5 American Society of Refrigeration Engineers:
6
ASRE Standard 34, Designation of Refrigerants
1
This specification 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 Halogenated Fire Extinguishants.
Current edition approved Feb. 10, 1998. Published July 1998. DOI: 10.1520/D6231-98R03.on Fire Extinguishing Agents.
Current edition approved Jan. 1, 2011. Published August 2011. Originally approved in 1998. Last previous edition approved in 2003 as D6231-1998(2003). DOI:
10.1520/D6231-11.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM 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 American National Standards Institute, 11 W. 42nd St., 13th Floor, New York, NY 10036.
4
Available from the Compressed Gas Association.
4
Available from the Air Conditioning, Heating and Refrigeration Institute, 4100 North Fairfax Drive, Suite 200, Arlington, VA, 22203-1678.
5
Available from Superintendent of Documents, U.S. Government Printing Office, Washington, DC 20036.
6
Available from American Society of Refrigeration Engineers, Refrigeration Engineering 65, 49 (1957).
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
D6231 – 11
3. Terminology
3.1 Definitions of Terms Specific to This Standard:
3.1.1 halogenated hydrocarbon, n—the halogenated compound coding terminology system provides a convenient means to
reference halo
...