ML20057C827
| ML20057C827 | |
| Person / Time | |
|---|---|
| Site: | 07109033 |
| Issue date: | 09/24/1993 |
| From: | Roughan C AMERSHAM CORP. |
| To: | Chappell C NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS) |
| Shared Package | |
| ML20057C830 | List: |
| References | |
| NUDOCS 9309300067 | |
| Download: ML20057C827 (7) | |
Text
r Q/fp33 Amersham Corporation 40 North Averne Burlington, M A 0:803
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- Mr. Cass R. Chappell, Section Leader te 322 e Cask Certification Section Storage and Transport Systems Branch 1
Division of Industrial and Medical Nuclear Safety, NMSS U. S. Nuclear Regulatory Commission IAmerSham 1 White Flint North OSA 11555 Rockville Pike Rockville, MD 20852 24 September 1993
Dear Mr. Chappell:
Enclosed please find a consolidated application for the Amersham Model 660 Type B(U) package. We request that the changes indicated in this application be incorporated into the NRC certificate of c m:;'twee number 9033.
This consolidated application will assure that all changes that have been made to the shipping package since the original approval as a Type B package are rerlected on the current certificate. The application has been updated to show compliance with the 1985 IAEA Transport regulations which is required for both international and air shipments. We request that the application be reviewed for compliance to the 1985 IAEA regulations.
l A list has been included to indicate the changes made to the submission that is l
currently on file at NRC. Where applicable, we have shown the justification for the changes made in the submission. We appreciate your assistance with this effort to l
assure the information submitted in support of this package is accurate and up to date. Please contact me if you require any additional information.
Sincerely, b dO l
Cathleen Roughan l
Regulatory Affairs Manager
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9309300067 930924
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l Amersham Corporation recently determined, that it was necessary to bring j
he Model 660 Safety Analysis Report (S.A.R.) into line with the current USNRC l
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Part 71 and IAEA Safety Series No.
6, 1985 Edition (as amended) Regulatory Standards.
It must be emphasized, that no changes have been made to the product, as i
part of this effort, and thus, there is no impact on the ability of the Model l
660 to continue meeting the Safety Requirements.
1 The changes that have been made to the S.A.R.,
affect most of the page of the report and the.efore, it is required, that the revised report replace l
the existing report in its entirety.
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l The changes made to the report accompanying this letter fall into two categories.
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A)
Those changes that are considered to have no impact on the technicalities of the product or the Safety Standards.
B)
Those changes that result from the restructuring of the format and I
certain technical changes that resulted from checking all weights l
and measures.
Items falling into Category A are not discussed herein, they are identified as follows:
i 1)
A uniform approach to the presentation of weights and measures P
within the S.A.R.
text has been adopted. American has been f
selected as primary with Metric as secondary.
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l 2)
Correction of spelling, typographic and minor grammatical errors, j
3)
American dimensions have been converted from decimals to fractions I
where appropriate.
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l are described as follows:
Items falling into Category B, are identified location wise herein and I
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1)
Those changes that reflect the restructuring suggested by Revision 2 of the Regulatory Guide 7.9 and IAEA Safety Series No. 6 1985 Edition (as amended).
2)
Those changes to weights and measures, resulting from a direct comparison, between current product detail / assembly drawings, from which the product is manufactured, S.A.R. Descriptive Drawings and the physical product.
Or, the correction of calculative errors.
3)
The depth of the minimum weld penetration on the Containment Capsules has been changed for added conservatism, from.020 inches (0.51 mm) to.016 inches (0.41 mm).
This has impacted the results of certain stress calculations.
In addition to those changes that fall into categories A & B.
It is to be noted, that all drawings and Certificates of Compliance listed in Sections 1.3 and 2,10 have been replaced where necessary with the latest revision.
Also. Chapter 7 has been completely revised to remove all reference to operational Instructions and to relocate the Maintenance Instructions.
J (revised) to Section 8.2 Appendix A.
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The ' Table of Contents' was restructured to reflect the suggested requirements of Revision 2 of the Regulatory Guide 7.9.
The following text will identify the location of tl.e changes on a page/section rumber basis.
Page Section No.
No.
Reason for Changes i
1-1 1-1 Changed IAEA 1" 73 to 1985 Edition (as amended).
Added second paragraph that identifies model variations.
1-1 1.2.1 Added tolerance to product weight.
Added reference to narrow body earlier version of the Model 660.
Added a descriptive breakdown to describe the distinguishing features of each model.
Added tolerance to shield weight.
Added reference to supplemental lead, depleted uranium or tungsten shielding.
Added paragraph that identifies the source assembly securement methods.
Added paragraph identifying labeling requirements.
1-2 1.2.2 Changed to reflect model variations.
1-3 1.2.3 Changed to reflect Iridium capacity by Model No.
1-3 1.3 Added Certificate of Compliance Changed drawing content to reflect latest configurations and added page numbers to aid in the location of the drawings and certificate.
Added diagram showing the maximum activity for each Model 660 variation.
2-1 2.1.1 Added reference to end plates in description of the outer housing.
2-1 2.1.2 Changed IAEA 1573 to 1985 Edition (as amended).
2-1 2.2 Added tolerance to product and shield weight.
2-1 2.3 Added type ( '
ta r ss steel (304) and reference to low carbon 2-1 2.4.1 Added Sect n... comply with Rev. 2 of Regulatory Guide 7.9.
2-1 2.4.2 Added Section to comply with Rev. 2 of Regulatory
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Guide 7.9.
2-1 2.4.3 Changed Section No. to comply with Rev. 2 of Regulatory Guide 7.9.
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Page Section No.
No.
Reason for Chances 2-2 2.4.3 Added reference to Model No. variations.
Added paragraph 2 and reference to Model No.
variations in paragraph 3.
2-3 2.4.4 Changed Section No. to comply with Rev. 2 of i
Regulatory 7.9.
Changed reference to Vultafoam to Rigid Polyurethane Foam to be more generic.
Added paragraph acknowledging, that in July 1992 it was shown, that the addition of supplemental lead to the depleted uranium shield, did not promote any eutectic reaction.
2-3 2.5 Added Section to comply with Rev. 2 of Regulatory Guide 7.9.
2-3 2.5.1 Renumbered ' Lifting Devices
- section to comply with Rev. 2 of Regulatory Guide 7.9.
2-3 2.5.2 Renumbered 'Tiedown Devices' section to comply with Rev. 2 of Regulatory Guide 7.9.
2-4 2.6.2 Changed reference to Vultafoam to Rigid Polyurethane Foam to be more generic.
t 2-4 2.6.3 Changed section title to comply with Rev. 2 of Regulatory Guide 7.9.
i Changed 0.5 atmosphere to 3.5 psi per 10 CFR
- 71. 71 (c) (3) requirement.
2-4 2.6.4 Changed Section Title to comply with Rev. 2 of Regulatory Guide 7.9.
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Used Section 2.5.2 of previous report to satisfy the requirement for ' Increased External Pressure'.
Changed minimum depth of weld penetration from.020 inches (0.51 mm) to.016 inches (0.41 mm) for conservatism. This caused a change to the collapsing pressure of the source capsule from 5548 psi to 4162 psi.
Changed the requirement of 10 CFR 71.71(c) (4) from 25 psi to 20 psi.
2-5 2.6.5 Renumbered ' Vibration' section to comply with Rev. 2 of Regulatory Guide 7.9.
2-5 2.6.6 Renumbered ' Water Spray' section to comply with Rev. 2 of Regulatory Guide 7.9.
2-5 2.6.7 Renumbered " Free Drop' section to comply with Rev. 2 of Regulatory Guide 7.9.
2-5 2.6.8 Renumbered ' Corner Drop' section to comply with Rev. 2 of Regulatory Guide 7.9.
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Page Section l
No.
No.
Reason for Chances j
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l 2-5 2.6.9 Used Section 2.5.1 of previous report to satisfy the requirement for ' Compression'.
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2-5 2.6.10 Renumbered
- Penetration' section to comply with Rev. 2 of Regulatory Guide 7.9.
)j 2-6 2.7.3 Changed reference to Vultafoam to Rigid Polyurethane t
(2 places). Added reference to ' Lead'.
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2-7 2.7.4 Changed Section Title to comply with Rev. 2 of j
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2-7 2.7.5 Added Section to comply with Rev. 2 of Regulatory l
Guide 7.9.
2-7 2.7.6 Renumbered ' Summary of Damage' section to comply with j
Rev. 2 of Regulatory Guide 7.9 2-7 2.10 Changed ' Free Drop Test' report to ' Drop Test of 660 with lead added report'.
3 Removed ' Puncture Test' report.
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Added ' Low Temperature Drop Test of 660A posi-lock' report. Both of the new reports include the results of a ' Puncture Test'.
1 Added test report for the Drop Test of the narrow body version of the Model 660 dated Nov. 25, 1969.
l Added page No's to aid in location of test reports.
I 3-1 3.1 Changed Section Title to comply with Rev. 2 o' Regulatory Guide 7.9.
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3-1 3.2 Added ' Lead' and tungsten and their melting 1
temperature.
Changed the reference to Vultafoam to Rigid
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Polfurethane Foam t0 be more generic, 3-1 3.4 Changed Section Title to comply with Rev. 2 of Regulatory Guide 7.9.
3-1 3.4.1 Changed reference to IAEA 1973 to 1985 Edition (as amended) and paragraph 130 (which was in error, should j
have been 230) to 548.
Also, made the same change in l
the next paragraph with the exception that paragraph
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240 was changed to 543.
I 3-2 3.5.1 Added the text for this section.
It was inadvertently left out of the earlier report.
3-3 3.5.3 Changed reference to section 3.2 to 3.5.1.
Section 3.2 does not indicate that the package is assumed to-reach a temperature of 1475"F.
i Changed reference to Section 2.4.1 to 2.4.4 to comply with previous section number change.
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l Page Section i
No.
No.
Reason for Changes l
3-3 3.5.4 Changed 284 psi to 368 psi which resulted from our reduction of the minimum weld penetration depth from
.020 to.016 inches. This also changed the maximum stress in the capsule from 3 to 4 percent of the yield strength of the material.
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3-3 3.5.6 Changed Section Title to comply with Rev. 2 of Regulatory Guide 7.9.
1 3-4 3.6.1 Changed reference to IAEA 1973 to 1985 Edition (as amended), changed reference to paragraph 230 to 548.
3-4 3.6.2 Changed reference to IAEA 1973 to 1985 Edition (as amended), changed reference to paragraph 240 to 543.
3-5 3.6.1 Same changes as those on page 3-4.
Also changed 1.42 in the formula
'h' to 1.32 to correct an error. This resulted in a change in the maximum surface j
1 temperature from 1087 to 106.3*F.
3-5 3.6.2 Same changes as those on page 3-4. Changed maximum surface temperature from 829: to 8592 and Table III to Table XII to comply with IAEA Safety Series No. 6 1985 Edition (as amended). Added a new paragraph stating that the maximum wall temperature will not cause melting or cracking of the shielding matezial.
3-7 3.6.3 Changed reference to IAEA 1973 to 1985 Edition (as amended), changed reference to paragraph 238 to 553.
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. 020 inches Changed the minimum weld penetration from.
to.016 inches.
Corrected metric equivalent of atmospheric pressure.
l Changed 100 kPa to 101 KN/m2 l
i Changed reference to IAEA 1973 to IAEA 1985 Edition (as amended), changed reference to paragraph 238 to l
4 553.
4 3-8 3.6.3 Changed longitudinal stress from 129 psi to 171 psi.
This resulted from the reduction in weld penetration depth.
Corrected Hoop Stress formula.
Noted change in wall thickness of cylinder.
(.020 inches to.016 inches).
Changed the results of the hoop stress calculation from 284 psi to 368 psi which also resulted from the reduction in weld penetration depth which equals the a
minimum wall thickness of the cylinder.
This resulted' j
in the stress generated to be changed from 'less than 3 percent' to 'less than 4 percent' of the yield strength of the material.
4-1 4.1.3 Changed minimum weld penetration from.020 inches to
.016 inches.
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Page Section No.
No.
Reasc7 for Changes 4-1 4.2.1 Changed Section Title to comply with Rev. 2 of Regulatory Guide 7.9.
Changed reference to IAEA 1973 to 1985 Edition (as a- ~ nded).
l 4-1 4.2.3 Changed Section Title to comply with Rev. 2 of j
Regulatory Guide 7.9 and added reference to Section j
2.6.
Deleted Section 4.2.4 Coolant Loss to comply with Rev.
2 of Regulatory Guide 7.9.
g 4-1 4.3.2 Changed Section Title to comply with Rev. 2 of Regulatory Guide 7.9.
l 4-2 4.3.3 Added section to comply with Rev. 2 of Regulatory i
Guide 7.9.
4-2 4.4 Added Section Title and N/A, to comply with Rev. 2 of Regulatory Guide 7.9.
4-2 4.5 Added Section Title and N/A, to comply with Rev. 2 of Regulatory Guide 7.9.
5-1 5.5 Added Section Title and contents, to comply with Rev.
2 of Regulatory Guide 7.9.
7-1 7
Section 7 has been rewritten to remove all reference f
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to Operational Procedures.
8-1 8.1.5 Changed 2 mR/hr. to 10 mR/hr which was in error.
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8-2 8.2.7 Added reference to Appendix A which is the Maintenance Section that follows.
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