The thermo-sensitive automatic sprinklers covered by this specification are intended for shipboard firefighting by reacting at a predetermined temperature, automatically releasing a stream of water in a specified pattern and density over a designated area when installed on the appropriate sprinkler piping. Sprinklers may be installed in wet and dry sprinkling systems. Sprinklers installed in wet systems will be exposed to stagnant seawater for extended periods of time.

Any automatic sprinkler that is damaged, deformed, actuated by ambient temperature, or operated due to fire, should be replaced. Sprinklers are not capable of being repaired or operating parts replaced or adjusted.