ML20127B898
| ML20127B898 | |
| Person / Time | |
|---|---|
| Issue date: | 07/09/1984 |
| From: | Lahs W NRC OFFICE OF NUCLEAR REGULATORY RESEARCH (RES) |
| To: | Belote J, Malaro J NRC OFFICE OF NUCLEAR REGULATORY RESEARCH (RES) |
| Shared Package | |
| ML20127A006 | List: |
| References | |
| FOIA-85-3 NUDOCS 8407260454 | |
| Download: ML20127B898 (2) | |
Text
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""'% UNITED STATES
, j. k NUCLEAR REGULATORY cOMMisslON WASHINGTON, D.C. 20656 g ,,
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MEMORANDUM FOR: J. C. Belote J. C. Malaro Regulatory Analysis and Materials Risk Branch Division of Risk Analysis and Operations, RES FROM: W. R. Lahs Regulatory Analysis and Materials Risk Branch Division of Risk Analysis and Operations, RES
SUBJECT:
FRA PROPOSED FIRE TEST - MODAL STUDY INTERFACE At the invitation of John Cook, NMSS I attended an interagency meeting withFRAandDOTonJune26andafollowupbriefingofR.Cunningham on July 3. The major subject of these meetings was FRA plans to conduct a pool fire test on an obsolete modified HNPF cask. The proposed test follows several pool fire and torch tests conducted by DOE and DOT since '
1978. The proposed test would reflect the pool fire requirementg of 49 CFR 179-105.4 for tank cars which involves a 100 minute, 1600 F pool fire which ostensively exceeds the themal loading requirement in our type B package standards. The railroads, in continuing to promote their position for special train consist, speed restrictions and other operational requirements, are questioning the difference in test standards to which FRA is responding with this proposed R&D effort.
FRA/ DOT MEETING
- The FRA/ DOT meeting was attended by approximately 10 FRA/ DOT attendees including Santman, Dugoff, and Robert Krich, Acting Director R&D for FRA. Cook and I were briefed on their program following which we described our current status and plans regarding the " Modal Study." Discussion then revolved around a number of subjects including:
(1) Performance standards must be judged in their entirety
- tests and-post-test acceptance criteria - also, what
" consequence" is being prevented through application of a particular perfomance standard, (2) Value of a test on an obsolete cask, and (3) Desirability of interface with Modal Study.
The result of the meeting was a request for NRC to consider participation in two interface groups:
(1) A group of thermal analysis experts whose purpose would be to establish a mutual understanding of the basis of and -
loadings imposed by the tank car vs. type B packsje s.
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(2) A steering group to provide advice on what test should be conducted and how it should be conducted and, most importantly, to develop post-test acceptance criteria for the obsolete cask.
CUNNINGHAM' MEETING John Cook and I reviewed the viewpoints expressed at the above meeting with R. Cunningham and C. MacDonald. Cunningham directed Cook to develop a draft response to FRA. He suggested cautioning them with regard to using an obsolete cask. He also believed that keeping in mind the total picture when discussing perfomance criteria was important and that this point should be included in the letter. He suggested that the letter should indicate that such a test may be premature in the sense that the Modal Study might identify more suitable tests for which the need could be considered and for which, sp ific details,such as the desirability of using an obsolete cask dressed. An April-May 1985 date was discussed for having ,couldthis i fomation available for transmittal to FRA/ DOT.
We also briefly discussed the Modal Study Peer Review. I mentioned the RES idea of possibig involving CEGB or CSNI. IAEA was also mentioned.
Cunningham, MacDonaTd and Cook thought that inviting a member from CEG8 might be considered but they still believed that people from NTSB or equivalent groups would be preferable. ,
We will be sent a copy of the proposed response for connent.
AM l William R..Lahs l Regulatory Analysis and Materials Risk Branch Division of Risk Analysis and Operations Office of Nuclear Regulatory Research e
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