ML20141N369

Advises Commission That Method for Determining Ref Temp for Pressurized Thermal Shock in Draft Reg Guide 1.99 Different from Method Included in Recently Issued Pressurized Thermal Shock Rule

ML20141N369
Person / Time
Issue date:	07/26/1985
From:	Dircks W NRC OFFICE OF THE EXECUTIVE DIRECTOR FOR OPERATIONS (EDO)
To:
Shared Package
ML20141N368	List: IA-85-820, Advises Commission That Method for Determining Ref Temp for Pressurized Thermal Shock in Draft Reg Guide 1.99 Different from Method Included in Recently Issued Pressurized Thermal Shock Rule ML20141N367 ML20141N369
References
FOIA-85-820, REF-GTECI-A-49, REF-GTECI-RV, RTR-REGGD-01.099, RTR-REGGD-1.099, TASK-A-49, TASK-OR, TASK-PII, TASK-SE SECY-85-262, NUDOCS 8603060284
Download: ML20141N369 (1)

Text

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Y}Js_,e a nacq d POLICY ISSUE July 26, 1985 SECY-85-262 FOR: The Commissior.ers FROM: William J. Dircks Executive Director for Operations

SUBJECT:

PRESSURIZED THERMAL SHOCK RULE DISCUSSION: It came to my attention yesterday that a draft regulatory guide (Revision 2 of R.G.1.99) presently under development by the staff, but not issued, includes a method for calculating RTndt different from that included in the recently issued Pressurized Thermal Shock rule. The difference does not alter the screening criteria in the rule; however, using the method in the guide one would calculate a different date that the screening criteria would be reached from that calculated using the method specified in the rule.

We are looking into this issue and will keep you informed.

Will J Dircks Executive Director for Operations hp[O 4 060110 O'MEALIB5-820 PDR

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