ML20214X113
| ML20214X113 | |
| Person / Time | |
|---|---|
| Site: | 07109073 |
| Issue date: | 06/01/1987 |
| From: | Frazer W LN TECHNOLOGIES CORP. (FORMERLY LONDON NUCLEAR SVCS, NUS CORP. |
| To: | Mcdonald C NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS) |
| Shared Package | |
| ML20214X115 | List: |
| References | |
| 28275, LN-87-0196-B1, LN-87-196-B1, NUDOCS 8706160335 | |
| Download: ML20214X113 (3) | |
Text
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TECHNOLOctES C OMPOR ATION 1501 KEY MOAD. COLUMUIA, G C. P9001 (f 30'3L2SG-4365
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4 June 1, 1987 LN-87-0196-B1
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Mr. Charles E. MacDonald, Chief i5 l
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Transportation certification Branch 4
'04 j Division of Fuel Cycle and Material Safety, NMSS United States Nuclear Regulatory Commission Q
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Washington, D. C.
20555 JUll
Subject:
Name Change of the NUS10-135 Cask IS87)
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Reference:
Docket #71-9073 occf[c' f,
Dear Mr. MacDonald:
On September 30, 1986, London Nuclear Services purchased all the l
outstanding stock of the NUS Process Services Corporation.
The two l
organizations where merged into a new company called LN Technologies Corporation.
Accordingly, we are requesting that the following changes be made to certificate of compliance 9073 to reflect the new company name.
We request that the following changes be madet From In Model Number NUS10-135 Fj LN-142 Drawings NUS Corporation
,, LN Technologies 5025-M-2001 Sheets' E 9414-M-3204 1 and 2 Rev. O E
Sheets 1 & 2 Rev. O Procedures NUS Procedures
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LN Technologies 08 WM-021, WM-022 WM-021, WM-022 In addition to the above described editorial changes, LN Technologies wishes to dolote WM-023 "NUSPSC llalogon Leak Test Procedure for the NUS10-135 Cask" and substitute the requirements of WM-011 " Soap Bubble Leak Test - LN Technologies Type A shipping Casks."
This request is in kooping with the exemptions under 10CFR 71.5 for low specific activity (LSA) packages.
This letter authorizes tho USNRC to place this letter and all attachments in the public document room.
The application foe of $150 is enclosed (ref. 10CFR 170.12) h in,,_
0706160335 070601 PDR ADOCK 07109073 A wmeer of W SNC Group
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LN TECHNOLOGIEC Mr. Charles E. MacDonald March 5, 1987 Page Two (2)
If you have any questions related to this request, please contact me at (803) 256-4355.
Sincerely,
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W. H. Frafer Transportation Cupervisor WHF/ab
Enclosures:
Attachments (6 copies)
LN Technologies Drawings E 9414-M-3204 Rev. O Sheet 1 LN Technologies Drawings E 9414-M-3204 Rev. O Sheet 2 LN Technologies Procedures WM-011, 021, 022 cc:
Regan Voit, LNT Steve McCoy, LNT Jim Mooney, LNT i
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Revision PAGE WM-Oll G
1 of 7 III SOAP BUBBLE LEAK TEST LN TECIINOLOGIES CORPORATION TECHNOLOG8ES TYPE A SiiIPPING CASKS
.C O APO A ATION
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COPYRIGHT C 1986 BY LN TECHNOLOGIES CORPORATION.
ALL RIGHTS RESERVED.
NO PART OF THIS DOCUMENT MAY BE REPRO-DUCED OR TRANSMITTED IN ANY FORM OR BY ANY MEANS, ELECTRONIC OR MECHANICAL, INCLUDING PHOTOCOPYING, RECORDING OR BY ANY INFORMATION STORAGE AND RETRIEVAL SYSTEM, WITHOUT PERMISSION IN WRITING FROM LN TECHNOLOGIES CORPORATION, EXCEPT FOR STRICTLY CONTROLLED DISTRIBUTION, FOR EVALUATION PURPOSES.
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ft f *O ORIGfhATOR DATE' CHECKED
'DATE OA 6' OATE' 7 MANAGER DATE
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SEb 9 pp.
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REVISION -
PAGE NO. -
WM-011 G
2 of 7 TABLE OF CONTENTS Page 1.0 PURPOSE ~
3 2.0 APPLICABILITY 3
3.0. DEFINITIONS 3
-4.0~
REFERENCES 3
-5.0'
' RESPONSIBILITIES 4
." )
6.0 EQUIPMENT-4 4
'7.0 PROCEDURE 8.0 ACCEPTANCE CRITERIA 5
6
- 9. 0' RECORDS Figure - l - Test Performance Form 7
9
N O. '.
REVISION PAGE
.WM-011 G
3 of 7 1.0 -PURPOSE-This procedure states the requirements for performing a Low-Pressure' Soap Bubble Leak Test for LN Type A shipping casks.
The fabrication contractor shall submit for approval detailed leak test procedures.
The purpose of this test-will be to check the integritylof welds, threaded fittings,
. flanges and any other joints where pressure tests below 8 psi are adequate to meet contractural/ functional requirements.
2.0 APPLICABILITY I
This test shall be performed before painting on all LN Technologies Type A shipping casks prior to acceptance from-a fabricator.
Additionally, the. test shal1~be performed yearly as a verification of gasket and gasket seating surfaces integ rity. - This soap bubble leak test is sensitive for-leak testing where a sensitivity of no greater than 10-3 3
atm.cm /sec is-required.
3.0 DEFINITIONS None.
4.0 REFERENCES
4.1 ANSI N14.5, 1977 - American National Standards for leakage-tests on packages for shipment of radioactive materials.
4.2 Code of Federal Regulation (CFR) Title 10 Part 71 9
7,
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No, REVISION PAGE WM-011 GL 4 of 7
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5.0 RESPONSIBILITIES Quality _ Assurance. Manager or his designee -
shall witness the performance of the applicable leak test and sign the test performance form (Figure 1).
6.0 EQUIPMENT
?
The following equipment is required for a Low Pressure Soap
' Bubble Test.
_6.1 Air Supply - A standard shop compressor or bottle compressed air capable of pressurizing the tested cavi-ty to 8 to 10 psig shall be utilized.
q 6.2 Gauge - A properly calibrated gauge capable of indicat-ing O. - 15 psi range with an accuracy - of + 2% of the -
indicated reading'shall be utilized.
6.3' Bubble Test Solution - A leak indicating solution equi-valent to'the following shall be utilized:
1 Dasco-Kleen Leak-Finding Compound #3183 D.
A.
Stewart Oil Company 2727 S.
Gray Street Chicago, Illinois 60623s 6.4 Relief valve - A relief valve set and checked at 10 percent over maximum pressurization pressure.
- 7. 0 PROCEDURE 7.1 The test shall be conducted by LN O.A.
approved personnel.
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NO, :
REVISION PAGE WM-011 G
5 of 7
. 7.2 The item shall be leak tested with all lids, gaskets, plugs, valves,'and fasteners in place and in the normal closed position.
The only. exception shall be the' port or valve utilized to pressure the cavity.
CAUTION:
IF THE CASK LEAK TEST IS TO BE CONDUCTED WITH A LINER INSIDE THE CASK, LINER SHALL BE VENTED DURING THE TEST TO PREVENT LINER IMPLOSION.
e, 7.3 Pressurize the cavity to 8 psi + 1,
-0 psi.
7.4 Close off or maintain pressare at pressurization location to hold specified pressure in cavity.
7.5 Apply the leak detecting solution to all gasketed
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a reas, - threads, seal welds, ports or valves by brush or spray.
Inspect for bubbles.
7.6 Conduct leak tesE for 5 minutes.
8.0 ACCEPTANCE' CRITERIA 8.1 No bubbles shall be visable to the unaided eye during the 5 minute test.
8.2 If bubbles appear during the test, weld integrity, gas-ket condition, flange or lid tightness, valve position, plug security, etc., shall be checked and the test rerun.
8.3 The results of the leak test shall be recorded on the Test Performance form It'igure L).
8.3.1 Leak Test Pressure
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-NT REVISION PAGE WM-011 G
6 of 7 8.3.2 Gauge Model, P/N and S/N, as applicable 8.3.3 Leak Test Duration 8.3.4 Date 8.3.5 Results, including discrepancies and acceptance 9.0 RECORDS Test Performance forms shall be maintained by the Quality Assurance Manager for one (1) year after ccrrpleted usable life of tested item.
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REVISION PAGE WM-011 G
7 of 7 1
Figure 1 TEST PERFORMANCE Equipment Tested:
Date Tested:
Leak Test Pressure:
psi Gauge Information:
Model #
Range Calibration Date Leak Test Duration:
minutes
)
PASSED FAILED Discrepancies:
(<,_ 12 months):
Next Leak Test Due Date Signatures:
Test Performer Date Quality Assurance Date e