ML20045A669
| ML20045A669 | |
| Person / Time | |
|---|---|
| Site: | 07109242 |
| Issue date: | 06/08/1993 |
| From: | Chappell C NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS) |
| To: | Gray P NORDION INTERNATIONAL, INC. |
| References | |
| NUDOCS 9306110180 | |
| Download: ML20045A669 (2) | |
Text
Y n.
d IMTB:NLO JUN 0 81993 71-9242 Nordion International, Inc.
ATTN:
Mr. P. A. Gray 447 March Road PO Box 13500 Kanata, Ontario, Canada K2K 1X8
Dear Mr. Gray:
This refers to your application dated November 27, 1992, requesting a Certificate of Compliance for the Model No Gammacell 220 package.
In connection with our review, we need the information identified in the enclosure to this letter.
Please advise us within 30 days from the date of this letter when this information will be provided. Additional information requested by this letter should be submitted in the form of revised pages.
If you have any questions regarding this matter, we would be pleased to meet with you and your staff.
Nancy Osgood is the project manager for our review of your application.
Ms. Osgood may be contacted at (301) 504-2459.
Sincerely, Original Siped by Cass ft. Chappeil Cass R. Chappell, Section leader Cask Certification Section Transportation Branch Division of Industrial and Medical Nuclear Safety, NMSS
Enclosure:
As stated cc: Mr. George A. Brown Department of Transportation DISTRIBUTION:
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71-9242 AJN 0 81993 Encl. to ltr. dtd.
Drawinas Provide engineering drawings showing the safety features and components of the packaging. The drawings should include the following information:
(a) Drawing title, drawing number, and revisions.
(b) Package dimensions and total weight.
(c) Parts list and material specification for each component of the package.
(d) Type, size, and locations of welds.
(e) Standards, codes and procedures to be used for fabrication, welding, inspection, and acceptance criteria.
(f) Torque requirements for the closure bolts and other threaded devices that are part of the package.
(g) The location and thickness of the kaowool insulation, and how the kaowool is secured in place.
(h) The attachment of the cover plate to the package.
(i) The attachment of the crush shield to the package.
(j) The shipping bracket and its attachment to the package.
Structural 1.
Show that the cover plate cap screws would not fail under a 30-foot side drop or top corner drop.
Provide a free-body diagram of the cover plate for each orientation. The free-body diagram should show all applied forces and reactions.
Explicitly show how the magnitude of each of the applied forces was determined. Specify the allowable stresses that will be used for the cap screws and justify that the allowable values are adequate.
Show that the stresses applied to the cap screws are less than the allowable values (consider combined tension, shear and bending of the screws).
2.
Show that the crush shield is adequately connected to the package for top corner and side impact orientations; i.e., show that the connection is sufficient to retain the crush shield in place while the fins are crushing.
3.
The structural analysis of top corner and side impact orientation is based upon Figures 2.3-F1 and 2.3-F2 for rectangular fins.
Justify the use of rectangular fin data to represent the performance of the curved fins on the Model No. GC-220 package. The analysis of the fins is based upon an assumed percentage of deformation (e.g., see pages 2.69 and 2.84). Justify that the assumed percentages are appropriate values.
Thermal The quantity of kaowool torn from the lead shielding seems arbitrary, particularly since some of the kaowool does not appear to be in close contact with the lead shield.
Justify the amount and locations of kaowool removed from the shield.
I
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