Accession Number : ADA291161

Title :   The Comparative Extinguishment Performance and Thermal Decomposition Products of Halon Alternative Agents.

Descriptive Note : Final rept.,

Corporate Author : FEDERAL AVIATION ADMINISTRATION TECHNICAL CENTER ATLANTIC CITY NJ

Personal Author(s) : Filipczak, Robert A.

PDF Url : ADA291161

Report Date : DEC 1994

Pagination or Media Count : 75

Abstract : Halon 1301, Halon 1211, and eleven alternative fire-fighting agents were compared for extinguishment effectiveness and thermal decomposition product generation, using a laboratory-scale test apparatus having methane as the fuel. Chemical analysis was conducted using a magnetic sector mass spectrometer with simultaneous measurement of oxygen consumption and carbon dioxide, water, and acid gas production. Chemical mechanisms are advanced to explain how halogenated hydrocarbons extinguish fires. The major conclusion was that the alternative agents were not as effective at fighting fires as Halons and that greater amounts of acid gases were produced during extinguishment. Hydrogen fluoride was found to be the predominant thermal decomposition product for all agents. jg

Descriptors :   *THERMAL PROPERTIES, *FIRE FIGHTING, *HALOGENATED HYDROCARBONS, *DECOMPOSITION, *EXTINGUISHING, MEASUREMENT, MAGNETIC FIELDS, PRODUCTION, WATER, POLYMERS, GASES, FUELS, CHEMICAL REACTIONS, MASS SPECTROMETERS, SYNCHRONISM, METHANE, CARBON DIOXIDE, CHEMICAL ANALYSIS, PYROLYSIS, FLUORINATED HYDROCARBONS, ACIDS, OXYGEN CONSUMPTION, HYDROGEN FLUORIDE.

Subject Categories : Organic Chemistry
      Physical Chemistry
      Safety Engineering
      Thermodynamics

Distribution Statement : APPROVED FOR PUBLIC RELEASE