ML20244D708

Requests Clarification as to Acceptable Containment Integrated Leak Rate Test Methods by 860307.Problems Occur When Facilities Pass W/Use of One Method But Fail by Another.Licensees Currently Use Three Computation Methods

ML20244D708
Person / Time
Issue date:	02/26/1986
From:	Partlow J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE)
To:	Eisenhut D Office of Nuclear Reactor Regulation
Shared Package
ML20244D710	List: DD-87-02, Informs That Secy Received Ltr from Professor Z Reytblatt Requesting Review by Commission of Director'S Decision DD-87-02.On Advice of Ofc of General Counsel,There Is No Adjudicatory Prohibition in Circulating Professor Ltr ML20244D708 ML20244D778 ML20244E095 ML20244E482 ML20244E507 ML20244E518 ML20244E520 ML20244E526 ML20244E529 ML20244E533 ML20245A325 ML20245A347 ML20245A352 ML20245A357 ML20245A360 ML20245A364 ML20245A369 ML20245A371 ML20245A381 ML20245B280 ML20246M232
References
TAC-52665, NUDOCS 8603040164
Download: ML20244D708 (2)

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February 26,19S6 '

Darrell G. Eisenhut, Deputy Director MEMORANDUM FOR: Office of Nuclear Reactor Regulation James G. Partlow, Director FROMi Division of Inspection Programs Office of Inspection and Enforcement CONTAINMENT INTEGRATED LEAK RAT

SUBJECT:

FOR GUIDANCE ON ACCEPTABILITY OF tly there t ble to NRR Regional inspection Section of perfomance

!!!.A.3(a) of App. Jof CILRTs statesith the prov with respect to 10 CFR ED, Appendix J.

that all CILRTs "...shall be conducted in accordance wAN51 N45.4 provid h d" and the

• reference-the American National Standard (ANSI) N45.4 are 1972...*

two different vessel method".

test In addition, methods two methods which of leakarerate ANSI the

• computation M45.4. absolute These me specified for use when perfoming the " ANSI absolute W45.4 also test method used method" of consist of the ' point to point

• and " totald time

• methods.

requires CILRT test duration,to be at least h24e the hours leak for rateany with the exception of those accepted, abbreviated metho s w er can be accurately dete6nined during the shorter mputation test period.

d in ANSI M45.4), a l

Currently. licensees are utilizing three different CILRT test co t EN-TOP-1, methods which consist of the

• total time" method (specifie shortened time duration method (provided by Sechtel 56.6-1981 which Topica Rev.1), and the " mass point

• method (described in AN51/AN was issued to replace ANSI W45.4).

point

• method to esiculate containmenthd i integrated thod of BN-TOleakage ra provides more accurate results than i that ir,the prove" total ti to detemine the integrated lestage rate.' total t'ime* meth the accuracy of the test. ble has been The lack of clear guidance as to which test

~

l t here methods h *mtssit was are accep point"

! . most recently demonstrated atl time the Catawba nu

• method.

computational method but had failed when using the ' tota EU3 Q Q I 6) 99 g

t .

Darrell G. E'itinhut .

ctions,IE T test methods are In headquarters requests clarification as toperformance order to facilitate the proper which CILR of CILRT considered to be acceptable to NRR.

appreciated. etnintt stCC SY-gut C. rMLOW j

James G. Partlow Director Division of Inspection Programs Office of Inspection and Enforcement Distribution:

DC5 016 CRPB Reading i

DI Reading S.A. McNeil. IE

. L.L. Whet 1er, SE P.F. McKee, IE R.L. Spessard, IE J.G. Partlow, IE E.L. Jordan, !E R.H. Vollmer, IE l J.M. Taylor, IE 4.M. Chung, R1 '

H.L. Whitener, RII F.A. Maura, R111 -

J.I. Tapia, RIV C.A. Clark, RV See previous concurrence)

Concurrence (*

• DCKirkpttrick

• RL5pessard

• PTMcKee EGCE:DEPER:1E DD:DI:1E 2/20/80

• SDRichardson ORPB:D3:1E

• SAMcNeil:mirORPB:DI:!E 11/19/85 ORPE:Dh1E 11/24 12/8/85 11/8/85 w JGP RL5ptsserd D:DI:

• PFMcKee DD:DI:!E 6 ORPD:DI:1E 2/21/86 2/ /86

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