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Design Considerations - index
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Radiation Shielding Seals


DOE-HDBK-1132-99
1.4
Special Systems.
1.4.1
Radioactive Waste Transfer Lines . During the design of radioactive waste
transfer systems, the following items deserve special consideration to reduce
personnel exposure and the spread of contamination:
leak detection boxes,
valve boxes,
drain-line plug assemblies, and
seal plate locations for pressure testing.
High-Activity Drains . During the design of high-activity drain systems, the
1.4.2
following items deserve special consideration to reduce personnel exposure and
the spread of contamination:
leak detection,
vacuum systems, and
double containment.
Non-Fire Protection Penetration Seals .
1.4.3
Air and Water Seals .
Determine the project criteria for the degree of water and air pressure
retention and acceptable leakage rates at penetrations. Past project
criteria have sometimes imposed unrealistic goals such as zero leakage.
Criteria should be based on calculations or safety analyses that can be
documented.
Select penetration sealant material based on satisfactory performance of
sealant in meeting project water and air retention criteria, compatibility of
sealant with adjacent materials and constructibility.
II-18


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