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|  Radiological Safety Training for Plutonium Facilities
DOEHDBK11452001
Student's Guide
The room that encloses the primary system
and is intended to provide containment if the
primary fails is called secondary
containment. The building that encloses the
systems is the final barrier.
2. Ventilation
Maintaining proper airflow is essential for the
safe operation of a plutonium facility. Air
flows from regions of high pressure to
regions of low pressure. Ventilation systems
are engineered so that air flows from areas
of low contamination to areas of greater
contamination. Air balance is maintained by
using damper controls, air locks, and backup
safety systems. Air balance is also
maintained by controlling the position of the
inside doors. Ventilation control doors
should not be blocked open, or
ventilation balance could be lost. Also,
do not operate any equipment unless you
have been trained and authorized to do
so.
Devices such as tents or glovebags are
used to provide local containment for
maintenance activities. These containments
normally have local ventilation and exhaust
filtration. A bagless transfer system for
moving items out of gloveboxes has been
developed for use throughout the complex.
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