ML20053B024
| ML20053B024 | |
| Person / Time | |
|---|---|
| Site: | 07109163 |
| Issue date: | 05/14/1982 |
| From: | Macdonald C NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS) |
| To: | Payne A GULF NUCLEAR, INC. |
| References | |
| NUDOCS 8205270628 | |
| Download: ML20053B024 (3) | |
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.??6 - V FCTC:R110 71-9163 MAY 141982 w,A e
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Gulf Nuclear, Inc.
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ATTN: Ms. Ann E. Payne
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Sg 202 Medical Center Blvd.
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s M I Gentlemen:
This refers to your application dated March 2,1982, requesting approval of the Model No. GNG-20 packaging.
In connection with our review, we need the infonnation identified in the enclosure to this letter.
Please advise us within thirty (30) days from the date of this letter when this information will be provided. The additional infonnation requested by this letter should be submitted in the fonn of revised pages.
If you have any questions regarding this matter, we would be pleased to meet with you and your staff.
Sincerely, i
Charles E. MacDonald, Chief Transportation Certification Branch Division of Fuel Cycle and Material Safety, NMSS l
Enclosure:
As stated i
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Gulf Nuclear. Inc.
Model No. GNG-20 Packaging Docket No. 71-9163 Encl to ltr dtd:
Drawing Provide coraplete engineering drawings of the Model No. GNG-20 shipping i
package. The drawings should show the general arrangement and design features of the package, the materials of construction, dimensions, method of construction, and welds. Each sheet of the drawings should show a drawing number and revision number.
Structural 1.
A positive closure which will prevent inadvertent opening of the package and preclude the entry of water into the package should be provided. The closure shown is not considered to meet the requirements of 10 CFR 5571.31(b) and 71.35.
2.
The requirements of 10 CFR 571.31(c) for lifting devicer, should be addressed.
3.
The requirements of 10 CFR 571.31(d)(2) for tie-down devices should be addressed.
4.
The requirements of 10 CFR 571.32(a) for load resistance should be addressed.
5.
The requirements of 10 CFR 571.35 for the normal conditions of transport should be addressed.
G.
For the hypothetical free drop, Part 71 requires striking the unyielding surface in a position for which maximum damage is expected.
The pictures in Appendix 2 showed that a horizontal drop was conducted.
However, for this package design, a flat top drop or a corner drop 4
(where the two seam welds meet) may be more damaging to the package than a horizontal drop. Demonstrate that the package will survive both flat top drop and top corner drop. (These tests should consider the effects on package closure.)
7.
Justify that the orientation chosen for the puncture test represents the most damaging orientation, i.e., what effect would top, bottom, or Q corner (where the two seam welds meet) drop onto the steel bar have on the package. Also consider effects of the puncture test on the package closure.
8.
Clarify that maximum weight of contents were used for all tests.
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O FF I C I A L R ECO R D CO PY
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- u. l THERMAL MAY 141982 1.
Provide vent holes which are sealed for normal conditions of transport in the container outer shell to allow release of decomposition products of polyester resin in a fire environment.
2.
Provide assurance that the package was not artificially cooled at the end of the 1/2 hour fire test (including a description of how the fire was extinguished at the end of the fire test).
SHIELDING Radiation profile results after test (page 15) list dose rates at the surface and 36 inches from the surface of package. Provide radiation components of the ganna (capture gammas) and neutron dose rates at the two specified locations.
OPERATING PROCEDURES Provide proposed operating and maintenance instructions for use of the package. This should include steps taken to assure proper closure of the package and monitoring of radiation levels.
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