Other Features - doe-std-1128-98

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.

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