ASTM D7673/D7673M-21

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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: D7673/D7673M − 15 D7673/D7673M − 21
Standard Specification for
Halon 1211, Bromochlorodifluoromethane (CF BrCl)
This standard is issued under the fixed designation D7673/D7673M; 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 Halon 1211 as a fire-fighting medium.
1.2 This specification does not address the fire-fighting equipment or hardware that employs Halon 1211 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 Halon 1211. Storage, handling, and transportation issues
may be are addressed in futurePractice D7815ASTM standards.
1.4 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each
system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used
independently of the other, and values from the two systems shall not be combined.
1.5 The following safety hazards caveat pertains only 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 safety, health, and healthenvironmental practices and determine the applicability of
regulatory limitations prior to use. Specific hazards statements are given in Section 4.
1.6 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
2.1 ASTM Standards:
D2108 Test Method for Color of Halogenated Organic Solvents and Their Admixtures (Platinum-Cobalt Scale)
D7815 Practice for Handling, Transportation, and Storage of Halon 1211, Bromochlorodifluoromethane (CF BrCl)
D6806 Practice for Analysis of Halogenated Organic Solvents and Their Admixtures by Gas Chromatography
2.2 U.S. Government Standard:
49 CFR Part 172 Hazardous Materials Table, Special Provisions, Hazardous Materials Communications, Emergency Response
Information, Training Requirements, and Security Plans
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 Jan. 1, 2015June 1, 2021. Published February 2015June 2021. Originally approved in 2010. Last previous edition approved in 20102015 as
ε2
D7673/D7673M– 10–15. . DOI: 10.1520/D7673_D7673M-15.10.1520/D7673_D7673M-21.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’sstandard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
D7673/D7673M − 21
2.3 AHRI Standards:Standard:
2008 Appendix C for Analytical Procedures for AHRI Standard 700-2012700-2014
2.3 ISO Standards:
ISO 3427 Gaseous Halogenated Hydrocarbons (Liquefied Gases) – Taking of a Sample
2.4 U.S. Governmental Standards:
CFR Title 49, Part 172.101 Tables of Hazardous Materials and Special Provisions
CFR Title 49, Part 172 Subpart D Marking Requirements of Packaging for Transportation
3. Terminology
3.1 Definitions of Terms Specific to This Standard:
3.1.1 Halon 1211—1211, n—the halogenated hydrocarbon compound Bromochlorodifluoromethane used as a fire extinguishing
medium.
3.1.1.1 Discussion—
The halon terminology system provides a convenient means to reference halogenated hydrocarbon fire extinguishants. Halogenated
hydrocarbons are acyclic saturated hydrocarbons in which one or more of the hydrogen atoms have been replaced by atoms from
the halogen series (that is, fluorine, chlorine, bromine, and iodine). By definition, the first digit of the halon numbering system
represents the number of carbon atoms in the compound molecule; the second digit, the number of fluorine atoms; the third digit,
the number of chlorine atoms; the fourth digit, the number of bromine atoms; and the fifth digit, the number of iodine atoms.
Trailing zeros are not expressed. Unaccounted for valence requirements are assumed to be hydrogen atoms.
number of hydrogen atoms5 (1)
@ number of carbon atoms 32 12 2 sum of halogen atoms #
~~ ! ! ~ !
For example, (2)
bromochlorodifluoromethane 2CF BrCl 2 Halon 1211
3.1.2 non-condensable gases—gases, n—non-condensable gases consist primarily of air (nitrogen, oxygen) accumulated in the
vapor phase of a liquefied compressed gas where the solubility of air in the liquid phase is extremely low and air is not significant
as a liquid phase contaminant. Non-condensable gases are in some instances termed non-absorbable gases.
4. Material Requirements
4.1 Type I—Mixtures of Halon 1211 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
prevent excessive pressure, the fill density of Halon 1211 within a container should not exceed that needed to achieve complete
filling of the container at the maximum envisaged storage temperature. For example, for a U.S. DOT Department of Transportation
(DOT) 4W260 cylinder, the nitrogen partial pressure shall not exceed 129 psig at 70°F70 °F [9.9 bar at 21°C]21 °C] for a 100 lb/ft
[1602 kg/m ] fill density, which yields a total pressure of 150 psig at 70°F70 °F [11.4 bar at 21°C].21 °C]. For this example, the
safe working pressure of the 4BW260 cylinder is not exceeded for temperatures below 131°F [55°C].131 °F [55 °C]. (See Practice
D7815.) (See Figs. 1 and 2.)
4.1.2 Halon 1211 shall conform to the requirements prescribed in Table 1 when tested by the appropriate test method(s) listed in
Section 6.
4.1.3 When a material analysis is required, by agreement between the purchaser and the supplier, the total pressure in the Halon
1211 container, partial pressure of the N , the fill density of the Halon 1211 within the container, and the maximum safe storage
temperature shall be part of the material analysis (certification). The pressure shall be reported in pound-force per square inch
gauge (preferred) or bar. The fill density shall be reported in pounds per cubic foot at 70°F70 °F (preferred) or kilograms per cubic
Available from Air-Conditioning, Heating, and Refrigeration Institute (AHRI), 21112311 Wilson Blvd., Suite 500,400, Arlington, VA 22201, http://www.ari.org.http://
www.ahrinet.org.
Code of Federal Regulations (CFR) documents are available from U.S. Government Publishing Office (GPO), 732 N. Capitol St., NW, Washington, DC 20401,
http://www.gpo.gov.
D7673/D7673M − 21
FIG. 1 Halon 1211 Pressure versus Temperature, English Units
FIG. 2 Halon 1211 Pressure versus Temperature, SI Units
TABLE 1 Requirements
Property Requirement
Halon 1211 purity, %, by mol, min 99.0
Acidity, ppm by mass, as HBr, max 3.0
Water content, ppm by mass, max 20
Nonvolatile residue, % by weight, max 0.02
Suspended matter or sediment None visible
Color Report value
metre at 21°C.21 °C. The maximum safe storage temperature of the Halon 1211 container shall be reported in degrees Fahrenheit
(preferred) or in degrees Celsius and shall conform to applicable regulations for the Halon 1211 container design and use.
4.2 Type II—Halon 1211 shall conform to the requirements of Type I, as listed in 4.1, and shall contain no more than 1.5 % by
volume non-condensable gases in the vapor phase, expressed as air when tested by the appropriate test method(s) listed in Section
6.
D7673/D7673M − 21
4.3 By agreement between the purchaser and the supplier, analysis may be required and limits established for elements or
compounds not specified in Table 1.
4.4 Unless otherwise specified, Type I is assumed.
4.5 (Warning—Exposure to concentrations of Halon 1211 in excess of 1.0 % by volume in air during periods of elevated
adrenaline could produce cardiac arrhythmia in some personnel.)
5. Sampling
5.1 Samples of Halon 1211 shall be taken from the liquid or vapor phase as appropriate. Samples of Halon 1211, taken from the
liquid phase, shall be taken from filled containers in accordance with the method specified in ISO 3427 or the method specified
in phase in a closed system as described in 2008 Appendix C for Analytical Procedures for to AHRI Standard 700-2012,700-2014,
Part 7.
5.1.1 The sampling vessel shall be capable of safely resisting the vapor pressure of the sample at the highest temperature that could
be encountered during handling, storage, or transport. (See Practice D7815.)
5.2 The Halon 1211 selected in accordance with 5.1 shall be tested for quality conformance in accordance with Section 6. The
presence of one or more defects shall be cause for rejection.
6. Test Methods
6.1 Purity: Purity—
6.1.1 Determine the purity by gas chromatography in accordance with the technique described in 6.1.2 – 6.1.5 or by gas
chromatography/mass spectrometry (GC/MS) in accordance with 6.2.2 – 6.2.5.
6.1.1.1 Prior to sample introducti
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