modifications, such as increased storage capacity, are made. Thus, although there is no known "drop-in" replacement, there may be replacement agents available that can satisfy the Navy's requirements, including acceptable cost of retrofit.

In addition to consideration of alternative agents for halons, other methods of fire suppression have been examined in the context of shipboard and aircraft use. New methods (e.g. inert gas generators and advanced water mist systems) appear promising for use in some situations now protected with halon.

Replacement of halons in Navy applications is a demanding task. Fortunately, there is an abundance of active centers of research in relevant fields in the United States.

References

1. J.W. Lyons, Fire, Scientific American Library, W.H. Freeman, New York (1985).

2. United Nations Environment Programme, Montreal Protocol on Substances That Deplete the Ozone Layer , Nairobi, Kenya (1987).

3. United Nations Environment Programme, Report on the Fourth Meeting of the Parties to the Montreal Protocol on Substances That Deplete the Ozone Layer, Copenhagen, Denmark, and Nairobi, Kenya (1992).

4. Clean Air Act, U.S. Code, Vol. 42, Title VI (1990).



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