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Ventilation Systems - doe-std-1128-98_ch10251
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DOE Standard Guide of Good Practices for Occupational Radiological Protection In Plutonium Facilities
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Decontamination and Decommissioning Program Requirements - doe-std-1128-98_ch10253


DOE-STD-1128-98
10.2.5 Other Features
Installed decontamination and materials-handling equipment that facilitates
operation and maintenance generally facilitates decommissioning in two ways.
First, it can be used for its intended purposes of cleaning and moving equipment
during the decommissioning phase. Even more important, it usually contributes to a
cleaner, better maintained facility, where nonfunctional equipment is moved out
when it is no longer needed and work surfaces are kept free of spreadable
Other features include the following:
-- Minimizing service piping, conduits, and ductwork;
-- caulking or sealing all cracks, crevices, and joints;
-- using modular, separable confinements for radioactive or other hazardous
materials to preclude contamination of fixed portions of the structure;
-- using localized liquid transfer systems that avoid long runs of buried
contaminated piping;
-- using equipment that precludes the accumulation of radioactive or other
hazardous materials in relatively inaccessible areas, including curves and turns
in piping and ductwork;
-- using designs that ease cut-up, dismantling, removal, and packaging of
contaminated equipment from the facility;
-- using modular radiation shielding, in lieu of or in addition to monolithic
shielding walls;
-- using lifting lugs on large tanks and equipment; and
-- using fully drainable piping systems that carry contaminated or potentially
contaminated liquids.
10-8


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