Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Flame Suppression by Halon Alternatives (NISTIR 6030)



Anthony P. Hamins


A series of experimental measurements were conducted in a baffle stabilized turbulent jet spray flame and a baffle stabilized pool fire in an effort to provide an improved understanding of the influence of various parameters on the processes controlling flame stability. The importance of a number of parameters including the agent injection duration, air velocity, air temperature, and system pressure were tested. A comparison of flame stability in pool fires and spray flames showed that for similar air flows and baffle sizes, baffle stabilized pool fires were more difficult to extinguish than baffle stabilized spray fires. For small air flows, the agent required to extinguish the pool fires was similar to the peak flammability limits related to premixed flames.
NIST Interagency/Internal Report (NISTIR) - 6030
Report Number


fire safety, fire research, fire suppression, halon alternatives, aircraft safety, flame extinguishment, halogenated compounds, pool fires, sprays, air velocity, fuel flow, pressure, air temperature, pool fires


Hamins, A. (1997), Flame Suppression by Halon Alternatives (NISTIR 6030), NIST Interagency/Internal Report (NISTIR), National Institute of Standards and Technology, Gaithersburg, MD, [online], (Accessed July 16, 2024)


If you have any questions about this publication or are having problems accessing it, please contact

Created June 1, 1997, Updated November 10, 2018