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Uranium Processing and Handling Facilities
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Design Considerations - index
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Irradiated Fissile Material Storage Facilities


DOE-HDBK-1132-99
2.4.2
Design Considerations . The design of processing facilities should consider
inclusion of the design features described below. Design requirements vary
significantly depending on the characteristics of the uranium, the type of
processing and handling activities, and the characteristics of the site.
Materials of different uranium assays should be handled in physically
different trains of equipment even though duplication of equipment
results. If this is not possible, the equipment should be sized for criticality
control of the most restrictive condition.
A definite isotopic specification for reactor returns should be established
before facility design is started for refabrication of enriched uranium that
has been irradiated and reprocessed.
Metallurgical processes and ceramic materials processing are the two
principal types of processes for fabrication of uranium products. The
hazards associated with each of these processes should be considered
during the design of the fire protection, ventilation, and confinement
systems. In addition, the chemical toxicity of uranium should be
considered during the design of the facility. The design should provide
specific control and isolation of flammable, toxic, and explosive gases,
chemicals, and materials admitted to the areas of the facility.
The design should provide space for shielding, both permanent and
temporary, of personnel and/or remote operations of equipment and
processes.
The primary confinement system should be constructed of fire-resistant
materials, and the process equipment and process being confined should
be designed to prevent or minimize the probability of potential flammable
or explosive conditions. Confinement enclosures for flammable metals
should be designed with self-contained fire protection and extinguishing
equipment; in some cases, inert atmospheres may be desirable within the
enclosures.
I-64


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