ASTM_D_7673_-_D_7673M_-_15.pdf

Designation:D7673/D7673M15Standard Specification forHalon 1211,Bromochlorodifluoromethane(CF2BrCl)1This standard is issued under the fixed designation D7673/D7673M;the number immediately following the designation indicates theyear of original adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of lastreapproval.A superscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This specification covers the requirements for Halon1211 as a fire-fighting medium.1.2 This specification does not address the fire-fightingequipment or hardware that employs Halon 1211 or theconditions of employing such equipment(for example,handhelds,fixed installations,etc.).1.3 This specification does not address the storage ortransportation of Halon 1211.Storage,handling,and transpor-tation issues may be addressed in future ASTM standards.1.4 The values stated in either SI units or inch-pound unitsare to be regarded separately as standard.The values stated ineach system may not be exact equivalents;therefore,eachsystem shall be used independently of the other.Combiningvalues from the two systems may result in non-conformancewith the standard.1.5 The following safety hazards caveat pertains only to thetest methods portion,Section 6,of this specification:Thisstandard does not purport to address all of the safety concerns,if any,associated with its use.It is the responsibility of the userof this standard to establish appropriate safety and healthpractices and determine the applicability of regulatory limita-tions prior to use.Specific hazards statements are given inSection 4.2.Referenced Documents2.1 ASTM Standards:2D2108 Test Method for Color of Halogenated OrganicSolvents and Their Admixtures(Platinum-Cobalt Scale)D7815 Practice for Handling,Transportation,and Storage ofHalon 1211,Bromochlorodifluoromethane(CF2BrCl)2.2 AHRI Standards:32008 Appendix C for Analytical Procedures for AHRI Stan-dard 700-20122.3 ISO Standards:4ISO 3427 Gaseous Halogenated Hydrocarbons(LiquefiedGases)Taking of a Sample2.4 U.S.Governmental Standards:5CFR Title 49,Part 172.101 Tables of Hazardous Materialsand Special ProvisionsCFR Title 49,Part 172 Subpart D Marking Requirements ofPackaging for Transportation3.Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 Halon 1211the halogenated hydrocarbon compoundBromochlorodifluoromethane used as a fire extinguishing me-dium.3.1.1.1 DiscussionThe halon terminology system pro-vides a convenient means to reference halogenated hydrocar-bon fire extinguishants.Halogenated hydrocarbons are acyclicsaturated hydrocarbons in which one or more of the hydrogenatoms 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 thenumber of carbon atoms in the compound molecule;the seconddigit,the number of fluorine atoms;the third digit,the numberof chlorine atoms;the fourth digit,the number of bromineatoms;and the fifth digit,the number of iodine atoms.Trailingzeros are not expressed.Unaccounted for valence requirementsare assumed to be hydrogen atoms.number of hydrogen atoms5(1)number of carbon atoms32!12!2sum of halogen atoms!#For example,(2)bromochlorodifluoromethane 2 CF2BrCl2 Halon 12111This specification is under the jurisdiction of ASTM Committee D26 onHalogenated Organic Solvents and Fire Extinguishing Agents,and is the directresponsibility of Subcommittee D26.09 on Fire Extinguishing Agents.Current edition approved Jan.1,2015.Published February 2015.Originallyapproved in 2010.Last previous edition approved in 2010 as D7673/D7673M 102.DOI:10.1520/D7673_D7673M-15.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.3Available from Air-Conditioning,Heating,and Refrigeration Institute(AHRI),2111 Wilson Blvd.,Suite 500,Arlington,VA 22201,http:/www.ari.org.4Available from American National Standards Institute(ANSI),25 W.43rd St.,4th Floor,New York,NY 10036,http:/www.ansi.org.5Available from U.S.Government Printing Office Superintendent of Documents,732 N.Capitol St.,NW,Mail Stop:SDE,Washington,DC 20401,http:/www.access.gpo.gov.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 3.1.2 non-condensable gasesnon-condensable gases con-sist primarily of air(nitrogen,oxygen)accumulated in thevapor phase of a liquefied compressed gas where the solubilityof air in the liquid phase is extremely low and air is notsignificant as a liquid phase contaminant.Non-condensablegases are in some instances termed non-absorbable gases.4.Material Requirements4.1 Type IMixtures of Halon 1211 and Nitrogen:4.1.1 The nitrogen(N2)partial pressure shall be such thatthe safe working pressure of the receivin