Standard Specification for HFC-227ea, 1,1,1,2,3,3,3-Heptafluoropropane (CF<sub>3</sub>CHFCF<sub>3</sub>)

ABSTRACT
This specification covers the requirements for 1,1,1,2,3,3,3-Heptafluoropropane (HFC-227ea) for use as a fire-fighting medium. However, this specification does not include the fire-fighting equipment or hardware that employs HFC-227ea, the conditions for employing such equipment, nor the storage or transportation of HFC-227ea. Material covered by this specification is of two types: Type I (mixtures of HFC-227ea and nitrogen) and Type II (HFC-227ea). Tests for purity, acidity, water content, fluoride ion content, suspended matter and sediment, nonvolatile residue, and fixed gases in the vapor phase shall be performed and shall conform to the requirements specified.
SCOPE
1.1 This specification covers requirements for HFC-227ea as a fire-fighting medium.
1.2 This specification does not address the fire-fighting equipment or hardware that employs HFC-227ea or the conditions of employing such equipment (for example, handhelds, fixed installations, etc.).
1.3 This specification does not address the storage or transportation of HFC-227ea. Storage, handling, and transportation issues may be addressed in future ASTM specifications.
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 only to the test methods portion, Section 5, 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 Note 1.

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ASTM D6064-11 - Standard Specification for HFC-227ea, 1,1,1,2,3,3,3-Heptafluoropropane (CF<sub>3</sub>CHFCF<sub>3</sub>)
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REDLINE ASTM D6064-11 - Standard Specification for HFC-227ea, 1,1,1,2,3,3,3-Heptafluoropropane (CF<sub>3</sub>CHFCF<sub>3</sub>)
English language
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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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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:D6064 −11
StandardSpecification for
1
HFC-227ea, 1,1,1,2,3,3,3-Heptafluoropropane (CF CHFCF )
3 3
This standard is issued under the fixed designation D6064; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope 3. Terminology
1.1 This specification covers requirements for HFC-227ea 3.1 Definitions of Terms Specific to This Standard:
as a fire-fighting medium. 3.1.1 HFC—hydrofluorocarbon; a chemical compound in
which the compound molecule is comprised exclusively of
1.2 This specification does not address the fire-fighting
hydrogen and fluorine and carbon atoms.
equipment or hardware that employs HFC-227ea or the con-
3.1.2 HFC-227ea—the compound 1,1,1,2,3,3,3-
ditions of employing such equipment (for example, handhelds,
heptafluoropropane; CF CHFCF .
fixed installations, etc.). 3 3
3.1.2.1 Discussion—The terminology system for fluorine-
1.3 This specification does not address the storage or
containing compounds (described in detail in ASRE Stan-
transportation of HFC-227ea. Storage, handling, and transpor-
dard34)providesaconvenientmeanstoreferencethestructure
tation issues may be addressed in futureASTM specifications.
of individual compounds. By definition, the first digit of the
1.4 The values stated in both inch-pound and SI units are to
numbering system represents one less than the number of
be regarded separately as the standard. The values given in
carbon atoms in the compound molecule; the second digit, one
parentheses are for information only.
more than the number of hydrogen atoms in the compound
molecule; and the third digit, the number of fluorine atoms in
1.5 The following safety hazards caveat pertains only to the
the compound molecule. For molecules containing three car-
test methods portion, Section 5, of this specification: This
bon atoms, two appended letters are added to indicate the
standard does not purport to address all of the safety concerns,
symmetry of the molecule. The first appended letter indicates
if any, associated with its use. It is the responsibility of the user
the substitution on the central (C2) carbon; for example, the
of this standard to establish appropriate safety and health
substitution CHF is assigned the designation “e.” The second
practices and determine the applicability of regulatory limita-
appended letter indicates the substitution at the C1 and C3
tions prior to use. Specific hazards statements are given in
carbons; for example, identical substitution on the C1 and C3
Note 1.
carbons are assigned the designation “a.” For example, the
2. Referenced Documents designation HFC-227ea indicates three carbon atoms (2+1),
one hydrogen atom (2−1), and seven fluorine atoms; the
2.1 ISO Standards:
designation “e” indicates that the central carbon is substituted
ISO 3363Fluorochlorinated Hydrocarbons for Industrial
as CHF, and the designation“ a” indicates that the substitution
2
Use-Determination of Acidity-Titrimetric Method
on Carbons C1 and C3 is identical, that is, the structure is
ISO 3427Gaseous Halogenated Hydrocarbons (Liquefied
CF CHFCF .
2 3 3
Gases)–Taking of a Sample
ISO 5789Fluorinated Hydrocarbons for Industrial Use- 4. Material Requirements
2
Determination of Nonvolatile Residue
4.1 Type I—Mixtures of HFC-227ea and Nitrogen:
2.2 ASRE Standard: 4.1.1 The nitrogen (N ) partial pressure shall be such that
2
3
ASRE Standard34
the safe working pressure of the receiving vessel is not
exceeded. To prevent excessive pressure, the fill density of
HFC-227eawithinacontainershouldnotexceedthatneededto
1
This specification is under the jurisdiction of ASTM Committee D26 on
achieve complete filling of the container at the maximum
Halogenated Organic Solvents and Fire Extinguishing Agents and is the direct
envisagedstoragetemperature.Forexample,fortheU.S.DOT
responsibility of Subcommittee D26.09 on Fire Extinguishing Agents.
4BA500cylinder,thenitrogenpartialpressureshallnotexceed
Current edition approved Aug. 1, 2011. Published September 2011. Originally
3 3
21.8barat21°C(316psigat70°F)fora1150-kg/m (72-lb/ft )
approved in 1996. Last previous edition approved in 2003 as D6064–03. DOI:
10.1520/D6064-11.
fill density (yielding a total pressure of 25.8 bar at 21°C (360
2
Available from American National Standards Institute, 11 W. 42nd St., 13th
psig at 70°F). For this example, the safe working pressure of
Floor, New York, NY 10036.
3
the 4BA500 cylinder is not exceeded for temperatures below
American Society of Refrigeration Engineers, Refrigeration Engineering 65,
1957, p. 49. 54°C (130°F).
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA
...

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:D6064–03 Designation: D6064 – 11
Standard Specification for
1
HFC-227ea, 1,1,1,2,3,3,3-Heptafluoropropane (CF CHFCF )
3 3
This standard is issued under the fixed designation D6064; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber 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 requirements for HFC-227ea as a fire-fighting medium.
1.2 This specification does not address the fire-fighting equipment or hardware that employs HFC-227ea or the conditions of
employing such equipment (for example, handhelds, fixed installations, etc.).
1.3 ThisspecificationdoesnotaddressthestorageortransportationofHFC-227ea.Storage,handling,andtransportationissues
may be addressed in future ASTM specifications.
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 Thefollowingsafetyhazardscaveatpertainsonlytothetestmethodsportion,Section5,ofthisspecification: 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 Note 1.
2. Referenced Documents
2.1 ISO Standards:
2
ISO 3363 Fluorochlorinated Hydrocarbons for Industrial Use-Determination of Acidity-Titrimetric Method
2
ISO 3427 Gaseous Halogenated Hydrocarbons (Liquefied Gases)–Taking of a Sample
2
ISO 5789 Fluorinated Hydrocarbons for Industrial Use-Determination of Nonvolatile Residue
2.2 ASRE Standard:
3
ASRE Standard34
3. Terminology
3.1 Definitions of Terms Specific to This Standard:
3.1.1 HFC—hydrofluorocarbon; a chemical compound in which the compound molecule is comprised exclusively of hydrogen
and fluorine and carbon atoms.
3.1.2 HFC-227ea—the compound 1,1,1,2,3,3,3-heptafluoropropane; CF CHFCF .
3 3
3.1.2.1 Discussion—The terminology system for fluorine-containing compounds (described in detail in ASRE Standard34)
provides a convenient means to reference the structure of individual compounds. By definition, the first digit of the numbering
systemrepresentsonelessthanthenumberofcarbonatomsinthecompoundmolecule;theseconddigit,onemorethanthenumber
of hydrogen atoms in the compound molecule; and the third digit, the number of fluorine atoms in the compound molecule. For
molecules containing three carbon atoms, two appended letters are added to indicate the symmetry of the molecule. The first
appendedletterindicatesthesubstitutiononthecentral(C2)carbon;forexample,thesubstitutionCHFisassignedthedesignation
“e.”The second appended letter indicates the substitution at the C1 and C3 carbons; for example, identical substitution on the C1
and C3 carbons are assigned the designation “a.” For example, the designation HFC-227ea indicates three carbon atoms (2+1),
one hydrogen atom (2−1), and seven fluorine atoms; the designation “e” indicates that the central carbon is substituted as CHF,
and the designation“ a” indicates that the substitution on Carbons C1 and C3 is identical, that is, the structure is CF CHFCF .
3 3
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 Fire Extinguishing Agents.
Current edition approved June 10, 2003. Published August 2003. Originally approved in 1996. Last previous edition approved in 1996 as D6064–96. DOI:
10.1520/D6064-03.
Current edition approved Aug. 1, 2011. Published September 2011. Originally approved in 1996. Last previous edition approved in 2003 as D6064–03. DOI:
10.1520/D6064-11.
2
Available from American National Standards Institute, 11 W. 42nd St., 13th Floor, New York, NY 10036.
3
American Society of Refrigeration Engineers, Refrigeration Engineering 65, 1957, p. 49.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
D6064 – 11
4. Material Requirements
4.1 Type I—Mixtures of HFC-227ea and Nitrogen:
4.1.1 The nitrogen (N ) partial pressure shall be such that the safe working pressure of the receiving vessel is not exceeded.To
2
prevent excessive pressure,
...

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