Module 9: Control Techniques - International Association of Fire ...
Module 9: Control Techniques - International Association of Fire ...
Module 9: Control Techniques - International Association of Fire ...
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IAFF Training for Hazardous Materials: Technician©<br />
Student Text<br />
Special Considerations<br />
<strong>Fire</strong> in MC 306/DOT 406 Cargo Tanks<br />
MC 306/DOT 406 cargo tanks are usually constructed out<br />
<strong>of</strong> aluminum and are likely to be carrying fuels. They are<br />
used in almost every jurisdiction in North America to<br />
deliver gasoline and fuel oil. <strong>Fire</strong>s involving these cargo<br />
tanks are frequent so you should prepare for them.<br />
Chemicals carried in these kinds <strong>of</strong> tankers <strong>of</strong>ten cause<br />
large fires characterized by heavy smoke and radiant heat.<br />
<strong>Fire</strong>s traveling a distance from the container, fueled by<br />
rivers <strong>of</strong> product, are also a distinct possibility. Because <strong>of</strong><br />
their aluminum construction, MC 306/DOT 406 cargo tanks<br />
will melt rather than build up internal pressures that could<br />
cause catastrophic breaching. If the tank does melt, there<br />
will be massive product released and the remaining container<br />
(if any) will become a large open-topped vessel.<br />
Non-Pressure Cargo Tank<br />
Consider these incidents the same as any large scale flammable<br />
liquid fire. Rescue <strong>of</strong> persons trapped by the fire or<br />
radiant heat should be a priority; however, it may not be<br />
possible to accomplish without a secure and adequate water<br />
supply. You will need adequate personnel to handle numerous<br />
streams. It is <strong>of</strong>ten best to use large caliber, unmanned<br />
deluge sets in areas <strong>of</strong> high risk.<br />
9-42 <strong>Module</strong> 9: <strong>Control</strong> <strong>Techniques</strong>