ML20244D778

Provides Guidance on Methods for Containment Integrated Leak Rate testing.Point-to-point & Total Time Methods Only Acceptable Methods Approved by Staff.Mass Point Method May Be Used on Interim Basis

ML20244D778
Person / Time
Issue date:	04/01/1986
From:	Eisenhut D Office of Nuclear Reactor Regulation
To:	Partlow J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE)
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 8604110058
Download: ML20244D778 (2)

Text

- - _ _ -

Ret. 2 I-James G. Part1rv, Director ,

MEN)RANDUM FOR:Division of" Inspection Programs 0f fice of Inspection and Enforcement Darrell G. Eisenhut, Deputy Director FROM. Of fice of Nuclear Reactor Regulation IDAN t CONTA1W,ENT INTEGRATED LEAK RATE TEST!NO ( -

$UBJECT: ON TE5ilHO METHODS .

986, there appears to be a ptable CILRT methods As indicated in yeer memorandum h associated Appendix J dated February which have been approved to date.necessary to review "

requirements. l Standard (ANSI)

Appendix J, Section 711. A.3(a), are that all CILRT5 accordance with the provisions of the American NationaThis N45.4-1972...".

acceptable methods related Thesetoare therate leak onlycomputation.

acceptable methods officially and the " Total Time"In 1981, ANS!/ANS-56.8 was issued methods. This proposed with the intent approved by the staff.The staf f has not approved this revision.

=

~ new standard replace N45.4-1972.

has been considerably expanded an One of the changes is the introduction of the " sass po n i t" method version.

- associated with a minimum test duration h staff has oftaken B hours.

two Based on the introduction of the " dsass point" sethod, t eThe firs The staff believes that parallel approaches towards implementation. be used in the interir, until the more formal review process is complete .t provided the CILRT duration is at least 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />. k Testing", is Draf t Regulatory Guide M5 021-5, " Containment d for this sinism System Lea currently under internal review along with propose better stabilization The approach in this draf t guide would eliminate the neeThe of 24 would criteria hours be duration developed for f or thetests.

future C]LRT er, are on the basis that uncertain.

tion of 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> of both the draf t guide and Appendix "eass point" sethod.

J revision should be applied for CILRT evaluations utilizing the

/ .

\

O NBD e r,m

y -- -_- - ___ __ _

l c;.

.2 James G. Partlow t this topic is considered appropriate, ', contac

'If further discussion on127626.

'Mr.. Jack Kudrick,- -

' D.h:WC 6; Darrell G. Eisenhut Deputy DirectorD cc: R. Bernero R. k'. Houston G. Laines B. D. Liaw J. Milhoan -

J. 5hapaker ..

1. Speis '

D. Crutchfield E. Rossi D15TRIBUT10N .

'3hMAL F 1LL PSB R/F J. Kudrick -

'8. D. Liaw R. Le11std.

W. Johnston -

G. Lair.as '

R. Bernero D. Eisenhut

5. McNeil

t*

i .'

y s' s *.

. g.'..e .

.T*-

, ,t p., * '" .

E PSE: DBL~+

l M9:v sc t.,

f (' ,

si ,

.Kudrick:yef 't: D Concur g1,e: Ath BWR:pBL : p.5Wp i

• 5ee Prtvious Sheet ,(or LBt.FWR.B l 3/ /7 /86 : E5 A E5:PpfR. H1  : A.W'w...(g......:...e,v.46rnertg a 7:..DEisen 4

~ : F55: DBL *

.<.:....MA)..:..k': :W hnston : GL

.:............:... :I/7 /.).L

. LGHulman

8_ (  %: R8a'dt d

.:..........h:....lMs

3/Ot /86  :

3/tN. 86

'3/tA/86

.:............:.....A.....:...........  : 3/;./86

~ -- NN2h~3/*A /86----- -  %