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Limits to the Effectiveness of Metal-Containing Fire Suppressants



Gregory T. Linteris


This report reviews the literature on metal inhibition of flames and identifies metal species with potential as fire suppressant additives. To provide a basis for discussion, the detailed mechanism of inhibition of iron is reviewed, and the reasons for its loss of effectiveness are described. The demonstrated flame inhibiting properties of other metals is then discussed, followed by a description of the potential loss of effectiveness for these other metals.
NIST Interagency/Internal Report (NISTIR) - 7177
Report Number


fire suppression, flame inhibition, Halon replacements, metal flame inhibitors


Linteris, G. (2004), Limits to the Effectiveness of Metal-Containing Fire Suppressants, NIST Interagency/Internal Report (NISTIR), National Institute of Standards and Technology, Gaithersburg, MD, [online], (Accessed May 28, 2024)


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Created December 1, 2004, Updated November 10, 2018