Design Features and Administratively Controlled Limits and Requirements

DOE-STD-3007-93

7.0 DESIGN FEATURES AND ADMINISTRATIVELY

CONTROLLED LIMITS AND REQUIREMENTS

Criticality safety of this operation depends on maintaining all solution in safe geometry.

Proper spacing (at least 12-inches edge-to-edge) must be maintained between

multiple process containers, or between process containers, safe tanks, and vacuum

traps.

Spills or leaks must be collected in approved solution containers such as safe bottles

or 4-liter beakers.

If the final wet vacuum trap is in the northwest corner of Room 1022 alarms, vacuum

transfer must be immediately stopped. The source of solution must be determined

and corrected before further use of wet vacuum.

Large geometry containers or equipment (internal volume available for solution

holdup exceeding 4 liters) are not permitted near this process equipment without

Criticality Safety approval.

8.0 SUMMARY AND CONCLUSIONS

It has been shown in section 5.0 that the proposed trap is a safe geometry and meets the

requirements of the double contingency principle.

9.0 REFERENCES

Corning Process Systems, "Process Fittings and Hardware," July 1985.

J. T. Thomas, ed., "Nuclear Safety Guide, TID-7016, Revision 2, "NUREG/CR-0095

(ORNL/NUREG/CSD-6), June 1978.

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