ML19242A462
| ML19242A462 | |
| Person / Time | |
|---|---|
| Site: | 07106400 |
| Issue date: | 07/06/1979 |
| From: | NUCLEAR FUEL SERVICES, INC. |
| To: | |
| Shared Package | |
| ML19242A458 | List: |
| References | |
| NUDOCS 7908020049 | |
| Download: ML19242A462 (2) | |
Text
Page 1 of 2 ATTACHMENT
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To Letter Dated July 5,1979 C. J. Michel to C. E. MacDonald SAFETY ANALYSIS REPCRT FOR PLUTONIUM PACKAGI;4G I.
INTRCDUCTICN Nuclear Fuel Services prcooses to utilize the Super Tiger packaging presently licensed by Ule Nuclear Regulatcry Commission as Certificate of Compliance USA /6400/3()F to transcort contaminated waste generated in the decommissioning of its piuttnium facility (see NFS Plan for De-commissioning of Plutonium and Uranium-233 Facilities, dated October 9, 1973). Although the Flan specifies decontamir.ation of equipment prior to packaging, it is anticipated that some packaged objects will contain residual quantities of plutonium in excess of 20 curies.
Since the Super Tiger was not licensed to transport more than 20 curies of plutonium in oxide form, NFS recuested, in a letter dated December 22, 1978, an amendment to the Certificate to permit the Commission to specifically audlorize shipr.ents in excess of 20 curies of plutonium.
In response to that request for amendment, the NRC requested additional information in letters dated February 26, 1979 and May 30, 1979.
This report consolidates all information required for our amendment request relative to the transport of pieces of large equipment contain-ing in excess of 20 curies of plutonium.
II.
- SCOPE, This report is written to demcnstrate that the form of the plutonium to be sealed and packaged in plywood containers within the Super Tiger
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package is nondispersable and therefore nonrespirable.
III.
WASTE DESCRIPTICN AND PREPARATICM In the course of decommissioning ti.e '1FS plutonium f acility, large pieces of equipment such as giove boxes, furnaces, blcwers, ductiork, etc., ',,hich will not fit into a 55-gallon drum, will be prepared for dispos al. Ali such equiacent will be decontaminated of any gross quantities of plutonium prior to packaging.
. NFS will immobilize any residual contamination a6d _. ovide the first containmen aarrier by applying a strippaole coating on all exposed contaminated surfaces of equipment and metal scrap.
This coating has elastic crocerties which ninimize cracking and chipoing during impact.
It will easily withstand the 150 F temperatures that were experienced within the Super Tiger during the fire test.
It can be applied by brushing, dipping, or spraying, It also has the property of retaining contamination if the coating is removed from the surface.
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All sharo or potentially dangerous objects that protrude frcm equip-ment will be removed or blunted to eliminate the possibility of these objects piercing their containment.
In order to effect economies in packaging / shipping and in total land commitment at the burial site, NFS may elect to place smaller metallic scrap, piping, etc., that will not fit into a 55-gallon druc inside of the larger glovebox and equipment items being packaged for tc msport.
In this case these smaller objects will be subject to the strippable coating requirements outlined above.
In addition, such objects shall be firmly supported inside the larger pieces by filling the surrounding void spaces inside the larger picces with packing materials such as foam or vermiculite.
The intent of this procedure is to minimize tne chance for penetraticn of the containment barriers under accident con-di tions.
Combus tibles, cleanup materials, and similar items will not te included or shipped in this packaging system.
In no case will object: small enough to fit into a 55-gallen drum be packaged in wooden boxes.
IV.
PLYWOOD CONTAU!ER CESCRIPTICN Plywood boxes will be sized specifically fcr the gloveboxes anc large pieces of equipment to provide for a tignt fit, thus minimizing in-ternal movement during transport.
All boxes will be rectangular and constructed with 3/4" exterior grade plywood.
Packing materials sucn as foam or vermiculite will be placed between the contained glovebox and the plywood box for additional protection and support.
Also, i f the plywood boxes contain large equipment items other than glovcboxes, packaging materials such as foam or vermiculite will be used to fill the void spaces between the equipment and the box.
The plywood containers will be shared with wood within the Super Tiger to minimize movement. Where space permits, dunnage bags will be utilized.
Plutonium content of each box will be limited to 60 grams.
The volume of each box will De greater than.that of a 55-gallen drum, r
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