ML20046D447

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Rev 29 to Reg Guide 1.84, Design and Fabrication Code Case Acceptability ASME Section III Div 1
ML20046D447
Person / Time
Issue date: 07/31/1993
From:
NRC OFFICE OF NUCLEAR REGULATORY RESEARCH (RES)
To:
References
REGGD-01.084, REGGD-1.084, NUDOCS 9308200070
Download: ML20046D447 (20)
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{{#Wiki_filter:U.S. NUCLEAR REGULATORY COMMISSION Revision 29 g/aareg'o July 1993 l g ) REGULATORY GUIDE j +.*v OFFICE OF NUCLEAR REGULATORY RESEARCH REGULATORY GUIDE 1.84 DESIGN AND FABRICATION CODE CASE ACCEPTABILITY ASME SECTION lil DIVISION 1 i A. INTRODUCTION standards are used, Criterion 1 requires that they be identified and evaluated to determine their applicabil-Section 50.55 a, " Codes and Standards," of ity, adequacy, and sufficiency and be supplemented 10 CFR Part 50, " Domestic Licensing of Production r m dified as necessary to ensure a quality product and Utilization Facilities," requires, in part, that com-in keeping with the required safety function. ponents of the reactor coolant pressure boundary be designed, fabricated, erected, and tested in accor-Criterion 30, " Quality of Reactor Coolant Pres-dance with the requirements for Class 1 components sure Boundary," of the same appendix requires, in of Section III, " Nuclear Power Plant Components,"1 part, that components that are part of the reactor of the American Society of Mechanical Engineers coolant pressure boundary be designed, fabricated, (ASME) Boiler and Pressure Vessel Code or equiva-erected, and tested to the highest quality standards lent quality standards. Footnote 6 to $50.55a states practical, i that the use of specific Code Cases may be authorized by the Commission upon request pursuant to Appendix B, " Quality Assurance Criteria for Nu-l 50,55a(a)(3), which requires that proposed alterna. clear Power Plants and Fuel Reprocessing Plants," to tives to the described requirements or portions 10 CFR Part 50 requires, in natt, that measures be j thereof provide an acceptable level of quality and established for the control of special processing of safety. materials and that proper testing be performed. j General Design Criterion 1, " Quality Standards This regulatory guide lists those Section III I and Records," of Appendix A,

  • General Design Cri-ASME Code Cases oriented to design and fabrication teria for Nuclear Power Plants," to 10 CFR Part 50 that are generally acceptable to the NRC staff for im-requires, in part, that structures, systems, and compo-plementation in the licensing of light-water-cooled nu-nents important to safety be designed, fabricated, clear power plants.

erected, and tested to quality standards commensu-i rate with the importance of the safety function to be Any inf rmation collection activities mentioned performed. Where generally recognized codes and in this regulatory guide are contained as requirements in 10 CFR Part 50, which provides the regulatory ba-St d nIin ert$g Net. 345 Ea sis for this guide. The information collection require-cha e

gineers, 4 h Street, New York, New York 10017.

ments in 10 CFR Part 50 have been approved by the l UsNRC ItEGt!LAf oRY GUIDES Wrttten comments may to submatted to the Reguistory Pubtlcations [ Branch, DFIPS, ADM, U.S. P4uclear Regulatory Commission, Washing-t Regulatory Guides are issued to describe and make availabia to the pub-ton, DC 2055s. The Guides are issued in the following ten troad divisions: ng a parts es r t a t hn e used by the staff in evaluating speCffic prot $ ems or postulated aCC4-q, power Reactors

6. Products dents. and data needed by the t#tC staff an its revhew of appilcations for
2. Research and Test Beactors F. Transportation permets and tacerees. Regulatory Guldes are not substitutes for reguta-
3. Fusts and Materials Facilities
8. Occupaticnal Health tions, and complianr/e with them is not re:3uired. Methods and solutions 4, Erevironmental and Siting
9. Antitrust and Financia! Review di terent from those set out in the gu6 des will be acceptable if they pro-
s. Matonals and Plant Protection
10. General -

f t cr i se Crees of 'ssued Guioes may be purchased from the Govemment Printing V (' [V d d D f1 i f, !" ^ office at the current GPO pnce. mformat6on on current GPO prices may O te obtained by contacting the Superintendent of Documents, U.S. i [pn*4 This Guide was tesued after cortsicuration of comments received from '"O 22 9 22' k( tre public. Comments and suDgestions for improvements in those guioms are encouraged at all times, and guides will to revised, as ap-Issued guides may also be purchased from the Nat6 anal Technical infor-f propriate, to accommodate comments and to reflect row information or matson Service on a standin0 order basis, ootails on this service may to l egenence. obta*ned by wrrting NTIS, s2&s Port Royal Road, Springfeld, VA 22161, '9308200070'930731 Y ~~ PDR REGGD / 01.084 R PDR p

i i Olhce of Managernent and Budget, Approval No. recommended hmitations resulting from Code Case j 3150-0011. usage. B. DISCUSSION Acceptance or endorsement by the NRC staff applies only to those Code Cases or Code Case The ASME Boiler and Pressure Vessel Commit-revisions with the date of ASME approval as shown m. tee pubhshes a document entitled Code Cases ,,1 f this guide. Earlier or later t rqu mry p s n Generally, the individual Code Cases that make up revisions of a Code Case are not endorsed by this th. document explam. the intent of Code rules or pro-guide. New Code Cases will require evaluation by the d is vide for alternative requirements under special cir-NRC staff to determine if they qualify for m.clusion in j cumstances. 3 the approved list. Because of the continuing change j Most Code Cases are eventually superseded by in the status of Code Cases, it is planned that this j revision to the Code and then are annulled by action guide will require periodic updating to accommodate 1 of the ASME. In such cases, the intent of the new Code Cans and any revisions of existing Code annulled Code Case becomes part of the revised Cases. Code, and therefore continued use of the Code Case intent is sanctioned under the rules of the Code. In C. REGULATORY POSITION other cases, the Code Case is annulled because it is no longer acceptable or there is no further

1. The Section til ASME Code Cases 2 listed i

requirement for it. A Code Case that was approved below (by number, date of ASME approval, and title) { for a particular situation and not for a generic are acceptable to the NRC staff for application in the application should be used only for construction of construction of components for light-water-cooled l the approved situation because annulment of such a nuclear power plants. Their use is acceptable within j Code Case could result in construction that would not the limitations stated in the " Inquiry" and " Reply" meet Code requirements. sections of each individual Code Case, within the The Code Cases listed in this guide are limited to limitations of such NRC or other requirements as may

exist, and within the additional limitations those cases applicable to Section 111 that are oriented toward design and fabrication.

recommended by the NRC staff given with the individual Code Case in the listing. The categorization All published Code Cases in the area of design of Code Cases used in this guide is intended to j and fabrication that are applicable to Section 111 of facihtate the Code Case listing and is not intended to j . l the Code and were in effect on August 14, 1991, indicate a limitstion on its usage. i were reviewed for inclusion in this guide. In addition j to the hsting of acceptable Code Cases, this revision

a. Design-oriented Code Cases (Code Case of the guide includes listings of (1) Code Cases that number, date of ASME approval,3 and title):

were identified as acceptable in a prior version of this regulatory guide and that were annulled after the (1) Code Cases applicable to piping design: l original issuance of this guide (June 1974) and tion, Section U. for Construc-Finned Tubinc N-160-1 07-18-85 (2) Code Cases that were identified as acceptable m a 07-18-88 I, Division 1 prior version of this regulatory guide and that were 03-14-91 l superseded by revised Code Cases after the original j l issuance of this guide (June 1974). Code Cases that N-4 5 3-1 11-30-88 Nickel-Chromium-Molybde-l are not listed herein are either not endorsed or will num-Copper Stainless Steel l require supplementary provisions on an individual (UNS NOS925) Seamless and basis to attain endorsement status. Welded Pipe for Class 2 and 3 The endorsement of a Code Case by this guide sion 1 constitutes acceptance of its technical position for N 454 12-07-87 Nickel-Chromium-Molybde-l applications not precluded by regulatory or other 12-03-90 num-Copper Stainless Steel l l requirements or by the recommendations in this or l other regulatory guides. Contingent endorsement is (UNS NOS925) Wrought = mdicated in regulatory position C.1.c for specific Fittings for Class 2 and 3 Construction Section 111, Dhi-cases. Ilowever, it is the responsibility of the user to sion 1 make certain that no regulatory requirements are violated and that there are no conflicts with other 'A numerical listing of the Code Cases appears in the ap-pendix. l "When more than one date is given. the earlier date is that l an which the Code Case was approved by the ASME and the later daie(s) is that on which the Code Case was reaffirmed by i ' Lines indicate substanthe changes from Revision 28. the ASME. t i b 1.84-2 l l t

N-455 12-07 87 Nickel-Chromium-Molybde-N-309-1 12-05-85 Identification of Materials for d 12-03-90 num-Copper Stainless Steel 07-27-88 Component Supports, Section (UNS N08925) Forged 03-14-91 Hl. Division 1 [ Flanges and Fittings for Class N-411-1 02-20-86 Alternative Damping Values 2 and 3 Construction Section 02-20-89 for Response Spectra Analysis III, Division 1 of Classes 1, 2, and 3 Piping, Section IH, Division 1 (2) Code Cases applicable to valve design: Code Case N-411-1 is acceptable subject to the following conditions in addition to those condi-N-133-3 07-18-85 Use of SB-148 Alloys 952 and tions specified in the Code Case: (1) The Code )_ 07-18-88 954 Section III, Division 1, Case damping should be used completely and' . l N-313 03-14-91 Class 3 consistently, if used at all. (For equipment other 05-11-81 Alternate Rules for Half-than piping, the damping values specified in 11-28-83 Coupling Branch Connec-Regulatory Guide ' 1.61, " Damping Values for 11-28-86 tions Section Ill, Division 1 Seismic Design of Nuclear Power Plants,'should l 11-28-89 be used.) (2) The damping values specified may N-394 02-20-84 Restricting Lift to Achieve be uwd only in those analyses in which current 07-30-86 Reduced Relieving Capacities seismic spectra and procedures have. been em- [ 3 07-30-89 of Full Lift, Nozzle Type, and ployed. Such use should be limited only to re- [ Flat Seated Safety and Safety sponse spectral analyses (similar to that used in l Relief Valves for Compress-the study supporting its acceptance-Reference { ible Fluid Applications, Sec-NUREG/CR-3526). The acceptance of the use tion IU, Division 1. Classes 2 with other types of dynamic analyses (e.g., time-and 3 history analysis or independent support motion - N-410 12-05-84 Certified Relieving Capacities method) is pending' further justification. (3) 07-27-88 of Pressure Relief Valves When used for reconciliation work or for support l, e 03-14-91 Having Set Pressure of 3 psig optimization of existing designs, the effects of in-up to but Not including 15 creased motion on existing clearances and on line l psig Installed for Overpressure mounted equipment should be checked. (4) This Protection of Compressible Code Case is not appropriate for analyzing the - Fluid Systems, Section HI, dynamic response of piping systems _ using sup ~ Division 1 Classes 2 and 3 ports designed to dissipate energy by yielding j N-442 02-23-87 1977 Addendum to ANSI / . (i.e., the design of which is covered by Code 04-30-90 ASME PTC 25.3-1976, Cane N-420). (5) This Code Case is not applica-Safety and Safety Relief ble to piping in which stress corrosion cracking j Valves, Class 1, 2, 3, and has occurred unless a case-specific evaluation is MC, Section Ill, Division 1 made and is reviewed by the NRC staff. g N-420 02-14-85 Linear Energy Absorbing Sup- { (3) Other Code Cases related to design: 02-14-88 ports for Subseedon NF, i N-119-6 09-05-85 Pump Internal Items, Section " " #~ 07-27-88 III, Division 1, Class 1, 2, f l N-196-1 03-14-91 and 3 Code Case N-420 is acceptable subject to the fol- .{ 01-0S-79 Exemption from the Snake-lowing conditions in addition to those conditions 01-21-82 down Requirements When specified in the Code Case. Each applicant desir ' -{ 01-21-85 Plastic Analysis is Performed ing to use the Code Case should provide the fol-l 01-21-88 for Section III Division 1, lowing information prior to implementing the -l l 12-03-90 Class 1 and CS Construction Case: (1) indication of systems in which energy-N-243 08-30-79 Boundaries Within Castings absorbing supports are to be used. (2) fatigue de - 07-16-82 Used for Core Support Struc-sign, (3) piping system analysis results considering 05-19-85 tures, Section IH, Division 1, inelastic behavior of supports, and (4) plans for 05-19-88 Class CS inservice examination of energy absorbers. l_ 03-14-91 i N-247 07-09-79 Certified Design Report Sum-N-433 12-16-86 Non-Threaded Fasteners for i 01-21-82 mary for Component Stan-12-16-89 Section III, Dwision 1, Class 01-21-85 dard Supports, Section Ul, 1, 2, and 3 Component ar'd l 01-21-88 Division 1, Class 1, 2, 3 and Piping Supports, Section Ill, l 03-14-91 MC Division 1 1.84-3 { o

i N-476 05-06-89 Class 1, 2, 3, and MC Linear in the Code Case: The following typographical er-i I Component Supports-Design rors need to be corrected: Criteria for Single Angle 1. In equation (3) the + sign should be ' i Members, Section III, Divi-changed to an = sign. sion 1 Subsection NF 2. In equation (4) the first + sign should be

b. Fabrication-oriented Code Cases:

changed to an = sign. N-392-1 12-11-89 Procedure for Evaluation of (1) Code Cases related to welding and the Design of Hollow Circular d brazing: Cross Section Welded Attach-ments on Classes 2 and 3 Pip-N-154-1 12-05-85 Projection Resistance Weldm.g ng, Section III, Division 1 12-05-88 of Valve Seats, Section III, Division 1, Class 1, 2 and 3 Code Case N-392-1 is acceptable subject to the Valves f Ilowing conditions in addition to those condi-N-262 01-07-SO Electric Resistance Spot tions specified in the Code Case: Applicants 09-07-82 Welding for Structural Use in should identify in their Safety Analysis Report: 09-05-85 Component Supports, Section (1) the method of lug attachment, (2) the piping 07-27-88 III, Division 1 system involved, and (3) the location in the sys-te where the Case is to be applied. l 03-14-91 N-304-4 02-23-87 Use of 20Cr-25Ni-6Mo (Alloy N-393 11-28-83 Repair Welding Structural i 12-11-89 UNS N08366) Plate, Sheet, 07_30 86 Steel Rolled Shapes and Strip and Welded Pipe, Class 07-30-89 Plates for Component Sup-2 and 3 Section III, Division 1 ports, Section Ill, Division 1 i N-315 02-14-83 Repair of Bellows, Section III, N-395 12-11-89 Laser Welding, Section III, i 02-19-86 Division 1 Division 1 02-19-89 x.452 03-08-89 Specialized Subcontracted Code Case N-315 is acceptable subject to the fol. Welding Process (Electron lowinc conditions in addition to those conditions Beam Welding), Section III, specified in the Code Case: Prior to implementa-Division 1 tion of the Code Case, the applicant should pre-N-4 64 03-08-89 Laser Welding of Lap-Joints, sent a description of the repair and a justification Section 111 Division 1 Class 2 why the bellows should be repaired rather than and 3 Construction replaced. Following receipt of approval for the (2) Other Code Cases related to repair, but prior to making the repair, the appli-fabrication: cant should present the results of the qualification l N-240 03-19-79 Hydrostatic Testing of Open on the full-scale facsimile bellows, meluding the 01-21-82 Ended Piping, Section III, design requirements, to ensure that the repair 09-17-84 Division 1 meets the requirements of the design specihca-5 09-17-87 08-14-90 l N-316 12-11-81 Alternate Rules for Fillet Hydrostade Tespg of Mng, OLOW 09-17-S4 Weld Dimensions for Socket 09-17-87 Welded Fittings, Section III, l 08-14-90 Division 1. Class 1, 2, and 3 9 N-345-1 12-13-82 Attachment of AMS 5382 N-368 07-06-83 Pressure Testing of Pump 06-30-88 Alloy 31 Seat Rings by Fric-06-30-87 Discharge, Section III, Divi-l 03-14-91 tion Welding, Section Ill. 08-14-90 sion 1, Classes 2 and 3 l Division 1, Classes 1,2, and 3 Code Case N-368 is acceptable subject to the fol-N-391-1 07-24-89 Procedure for Evaluation of lowing condition in addition to those conditions the Design of Hollow Circular specified in the Code Case: Applicants using this Cross Section Welded Attach-Code Case should proside information to demon-ments on Class 1 Piping, Sec-strate that the length of discharge piping is rea-tion Ill, Division 1 sonably short. N-369 02-14-83 Resistance Welding of Bel-Code Case N-391-1 is acceptable subject to the 02-19-86 lows, Section 111, Division 1 following conditions in addition to those specified 02-19-89 1.84-4

N-414 02-20-86 Tack Welds for Class 1, 2, 3 manufacturers should also rneet the provisions of l 02-20-89 and MC Components and NCA 4000. l Piping Supports, Section 111, i Division 1 1720-2 11-20-78 Weld End Preparation for N-430 02-28 Alternative Requirements for (N-106-2) 08-28-81 Section III Division 1 Con- [ 02-28-89 Welding Workmanship and 09-17-84 struction i Visual Acceptance Criteria for 09-17-87 g { Class 1, 2, 3 and MC Linear-08-14-90 I )- Type and Standard Supports, Code Case 1720-2 (N-106-2) is acceptable sub-Section III, Division 1 ject to the following condition in addition to those, . c nditions specified in the ' Code. Case: The ac- [ Code Case N-430 is acceptable subject to the fol-ceptance of weld end preparations other than lowing conditions in addition to those conditions those shown in Figures 1, 2, and 3 of the Code 't specified in the Code Case: (1) The applicant Case should be evaluated on a case-by-case basis. [ should demonstrate that the applicable supports are not subject to cyclic loading in excess of i 20,000 cycles and (2) the first sentence of 1792-2 01-08-79 Fiberglass Reinforced Ther-3.0(f)(1) should be replaced with the following: i "For material 3/8 m. and less nominal thickness, (N-155-2) 01-21-82 mosetting Resin Pipe, Section 01-21-85 III, Dmss,on 1 undercut depth of 1/32 in. on one side of the Ob2 b88 l member for the full length of the weld, or 1/32 03-1691 l in. on one side for one-half the length of the weld, and 1/16 in, for one-fourth the length of Code Case 1792-2 (N-155-2) is acceptable sub- { the weld on the face of a rectangular tube or one-ject to the following condition in addition to those fourth the length of the weld on the same side of conditions specified in the Code Case: The appli-j the member is acceptable." cant should comply with the additional require-ments that are specified in Regulatory Guide. .i ~ 1.72, " Spray Pond Piping Made from Fiberglass-

c. Code Cases with contingent approval:

Reinforced Thermosetting Resin." N-31-1 07-18-85 Elastomer Diaphragm Valves, N-192-2 09-16-81 Use of Braided Flexible Con-l 07-18-88 Section 111. Class 2 and 3 09-17-84 nectors, Section 111, Division - l 03-14-91 09-17-87

1. Class 2 and 3 t

08-14 l Code Case N-31-1 is acceptable subject to the following conditions in addition to those condi-Code Case N-192-2 is acceptable subject to the i tions specified in the Code Case: Each applicant following conditions in addition to those condi-who applies the Code Case should indicate in the tions specified in the Code Case: The applicant referencing Safety Analysis Report that the serv-should indicate system application, design and l ice life of the elastomer diaphragm should not ex-operating pressure, and pressure-temperature rat-ceed the manufacturer's recommended service ing of the flexible hose. Data to demonstrate life. This recommended service life should not compliance of the flexible hose with NC/ l exceed 1/3 of the minimum cycle life as estab-ND-3649, particularly NC/ND-3649.4(e), are re-lished by the requirements of paragraph 3 of the quired to be furnished with the application. { Code Case. In addition, the service life of the N-284 08-25-80 M etal-Containment Shell elastomer diaphragm should not exceed 5 years, 05-25-83 Buckling Design Methods, and the combined service and storage life of the 07-30-86 Section Ill Division 1,' Class ) elastomer diaphragm should not exceed 10 years. 07-30-89 MC 1 Code Case N-284 is acceptable subject to the fol-N-62-6 ' 12-11-89 Internal and External Valve lowing condition in addition to those conditions -j Items, Section III, Division 1, specified in the Code Case: Price to implementa- ,i Class 1, 2 and.3 tion of the Code Case, the applicant must dem-Code Case N-62-6 is acceptable subject to the onstrate to the satisfaction of the NRC staff (via following condition in addition to those condi-Safety Analysis. Report) that any axisymmetric tions specified in the Code Case: The Code re-techniques that are proposed will be applicable to l . quires that Class 1 and Class 2 valve manufactur- - a vessel having large asymmetric openings and j ers meet the provisions of NCA 4000. "Quahty that the overall margin used to prevent she!!. Assurance," and, in addition, Class 3 valve buckling is acceptable. 1.84-5 2: z. l

f N-292 01-05-81 Depositing Weld Metal Prior 1470-27 12-18-72 External Pressure Charts for 11-28-83 to Preparing Ends for Weld-11-04-74 High-Strength Carbon Steels 07-30-86 ing, Section III, Division 1, and for Low-Alloy Steels, 07-30-69 Class 1, 2, and 3 Construction Section Vill, Division 1 and Code Case N-292 h acceptable subject to the fol-2, and Section 111 lowing conditions in addition to those conditions 1471-1 03-09-72 Vacuum Electron Beam 01-01-78 Welding of Tube Sheet Joints, specified in the Code Case: Class 3 pip' g that is longitudinally welded and that has a weld effi. Section III ciency factor of 1.0 as selected from Table 1477-1 03-09-72 Use of 1970 Addenda of C 01-01-78 ANSI B31.7, Section Ill ND-3613.4-1 should receive a 100 percent 1494-1 03-03-73 Weld Procedure Qualification volumetric examination (RT or UT) of the depos- } ited weld metal m accordance with the require _ 01-01-78 Test, Section 11I ments of ND-5000. 1506 12-13-71 Stress Intensification Factors, 01-01-78 Section III, Class 2 and 3 N-315-4 12-11-59 Procedure for Evaluation of Piping the Design of Rectangulrr 7516-2 08-11-75 Welding of Seats or Minor In-Cross Section Attachments on (N-24) 07-01-7S ternal Permanent Attach-Class 2 or 3 Piping, Section ments in Valves for Section i 111. Division 1 III Applications 1516-2 11-20-758 Welding of Seats or Minor In-Code C.ase N-318-4 is acceptable subject to the following conditions in addition to those condi-(N-24) 01-01-80 ternal Permanent Attach-gy gg tions specified in the Code Case. Applicants should identify m their Safety Analysis Report: til Applications 1533S 06-14-72 Pressure Temperature Ratings (1) the method of lug attachment (2) the piping 07-01-75 of SA-351 Grades CF8A, system involved, and (3) the location m the sys-tem where the Case is to be applied. CF3 and CF3M, Section 111 1535--2 04-30-73 Ilydrostatic Testing of Sectio.n

2. Code Cases that were endorsed by the NRC in 03-21-77 111, Class 1 Valves a prior version of this guide and were later annulled 1536 08-14-72 Closing Seam for Electrical by action of the ASME should be considered as 07-01-77 Penetrations for Section III, deleted from the list of acceptable Code Cases as of Class 2, 3, and MC the date of the ASME action that approved the 1539-1 11-21-77 M etal Eellows and M etal annulment. Such Code Cases, which were annulled (N-30-1) 01-01-81 Diaphragm Stem Sealed on or after July 1,1974, are listed below by number, Valves, Section 111, Division effective dates.d and title 5
1. Classes 1, 2, and 3 1541-3 05-15-78 Ilydrostatic Testing of Em-1361-2 03-09-72 Socket Welds, Section 111 (N-32-3) 07-01-79 bedded Class 2 and Class 3 03-01-79 Piping for Section III, Divi-Code Case 1361-2 was acceptable when used in sion 1 Construction connection with Section 111, paragraph NB-3356, N-32-4 03-16-81 Ilydrostatic Testing of Em-Fillet Welds.

03-16-84 bedded Class 2 and 3 Piping for Section 111, Division 1 1461-18 03-09-72 Electron Beam Welding, Sec-Construction 02-16-77 tion 1,111, and VIII, Division 1 and 2 Code Case N-32-4 was acceptable subj.ect to the following conditions in addition to those condi-tions specified in the Code Case: 7The annulment of Code Case 1470-2 was effective upon ASME approval of Code Case 1630. However, because of an oversight, the annulment was not noted until publication of Supplement No.13 to the 1974 Code Cases.

  • Earlier date-date Code Case was approved by ASME;

'This revision of the Code Case was originally approved by later date-date Code Case was annulled. Where snore than the ASME on B-11-75 and was annulled on 7-1-78 because of r two dates appear, the last date is the date that the Code Case the publication of revisions to Section III in the Winter 1977 was annulled. The middle date (or dates.) was the date of re-Addenda. However, the users did not believe that the Code i affirmation of the Code Case-Case was covered in the Code revision; therefore, ASME reaf-- " Code Cases 1355-3.1534, and 1554, which were listed in firmed the Case on 11-20-78. Because of these circumstances the originalissue et this Fuide, were annulF-d by ASME action and because there were no changes in the Code Case, the NRC prior to July 1,1974. considers that this Case was in effect during the period 7-1-78 through 11-20-78. ' Code Case 1461-1 is no longer listed as a Section 111 Code

  • Code Case was annulled on date as indicated, but the an-Case and is therefore deleted frorn the acceptable listing.

nulment was first indicated in Revision 12 to this guide. 1A4-6 P P

3 . The acceptance was based on the following clari-1606-1 12-16-74 Stress Criteria Section III, fication and interpretation. Code Case N-32-4 07-01-77 Classes 2 and 3 Piping Subject does not replace paragraph NC/ND 6129. "Provi-to Upset, Emergency, and sions for Embedded or inaccessible Welded Fauhed Operating Conditions Joints in Piping," of the Code. The intent of the Code Case is to (1) provide' additional testing above Code requirement and (2) permit liquid Code Case 1606-1 was acceptable subject to the penetrant or magnetic particle testing in place of interpretation that the stress limit designations of radiographic testing for Class 3 piping with 3/8, " Upset," " Emergency," and " Faulted" do not nominal wall thickness or less. i ement with specified plant Paragraph (1) contains an additional requirement conditions applicable to ASME Code Class 2 and to the Code it was, therefore, acceptable but un-3 components for fluid systems. These designa-necessary to include in the Code Case. Paragraph tions should be established and justified in the (2) is a variation in the volumetric examination design specifications. technique and was acceptable as written. Para-graph (3) contains an additional requirement and is not a relaxation of the Code. It was, therefore, 1607-1 11-04-74 Stress Criteria for Section 111, acceptable but unnecessary to include in the 07-01-77 Classes 2 and 3 Vessels Code Case. Designed to NC/ND-3300 Exchiding the 2 3200 1 1552-1 08-29-77 Design by Analysis of Section ail *'"#l* l (N-35-1) 07-01-79 III, Class i Valves 1553-18 03-03-75 Upset lieading and Roll Code Case 1607-1 was acceptable subject to the 01-01-76 Threading of SA-453 for Bolt-interpretation that the stress limit designations of ing in Section 111 " Upset," " Emergency," and " Faulted" do not -l necessarily imply agreement with specified plant + 1555-1 01-14-77 Certification of Safety Relief e nditions applicable to ASME Code Class 2 and 01-01-78 Valves, Section Ill, Division 1 3 components for fluid systems. These designa-1569 03-03-75S Design of Piping for tions should be established and justified in the 07-01-79 Pressure Relief Valve Sta-design specifications. tion. Section 111 l t Code Case 1569 was acceptable subject to com-N-5 5-1 04-05-84 -Inertia and Continuous Drive j pliance with the recommendations contained in (1609) 04-05-87 Friction Welding, Section 111, Regulatory Guide 167, " Installation of Over-Division 1 pressure Protection Devices." l 1614 12-17-73SHydrostatic Testing of Piping j 1573 04-30-73 Vacuum Relief Valves, Sec-01 01 79-Prior To or Following the In-l 01-01-78 tion 111 . stallation of Spray Nozzles for 1574 04-30-73 liydrostatic Test Pressure for Section 111, Classes 1, 2, and 12-31-74 Safety Relief Valves, Section -3 Piping Systems 111 , Partial 1620 03-02-74 Stress Category for 1580-1 11-05-73 Buttwelded Alignment Toler-(N-61) 01-08-79 Penetration Welded Penetra-i 01-01-78 ance and Acceptable Slopes 01-08-82. tions. Section Ill, Class 1. for Concentric Centerlines for Construction Section Ill, Class 1, 2, and 3 1623 03-02-74 Design by Analysis for Section j 03-01-79 III, Class I Sleeve-Coupled ' { 1581 06-25-73 Power-Operated Pressure Re-and Other Patented Pipmg. 03-01-79 lief Valves, Section Ifl J I"l" 1588 08-13-73 Electro-Etching of Section 111 } (N-46) 03-19-79 Code Symbols 1630-1 07-10-78 External Pressure Charts for l 03-19-S2 1601 11-05 Limits of Reinforcement for (N-66-1) 07-10-81 High Yield Strength-Carbon j 07-01-74 Two-Thirds Area, Section 111. Steels and Low Alloy Steels. Class 1 (Yield Strength above 38 Ksi i to 60 Ksi inclusive.) For Sec-l Sconected date. tion 111, Class 1,2,3, and MC ] 1.84-7 ~ m

r 1630-1 12-11-81" External Pressure Charts for 1660 11-04-74 Overprewre Protection Un-(N-66-1) 12-05-84 High Yield Strength Carbon (N-77) 03-01-79 der Emergency Operating 12-05-57 Steels and Low Alloy Steels. Conditions for Section III, (Yield Strength above 38 Ksi Class 1 to 60 Ksi inclusive.) Section 1661 11-04-74 Postweld Heat Treatment Ill, Division 1. Class 1, 2, 3. 01-01-78 P-No.1 Materials for Section and MC 111, Class 1 Vessels 1633 04-29-74 Brazing of Seats to Class 1,2, 1662 11-04-74 Shop Assembly of Compo-01-01-78 and 3 Valve Body or Bonnets. 01-01-78 nents, Appurtenances and j Section III Piping Subassemblies for Sec-1635-112 08-12-74 Stress Criteria for Section III, tion III, Class 1, 2,3 and MC 07-01-77 Class 2 and 3 Valves Sub-Construction y jected to Upset, Emergency, 1665 11-04-74 Pressure-Temperature Ratings and Faulted Operating (N-81) 07-01-78 for Class 1 Valves Made from Conditions 5 Cr-1/2 Mo, Section Ill 1672 11-04-74 Nuclear Valves for Section Code Case 1635-1 was acceptable subject to the 03-21-77 Ill, Didsion 1, Class 1, 2, 3 interpretation that the stress limit designations of Construction " Upset," " Emergency," and " Faulted" do not 1675 12-16-74 Tubesheet to Shell or Formed necessarily imply agreement with specified plant 07-01-76 Head Weld Joints, Section 1 conditions applicab!e to ASME Code Class 2 and III, Class 1 Vessels 3 components for fluid systems. These designa. 1676D 12-16-74 Clarification of Stress Intensi-tions should be estabbshed and justified in the 07-01-76 ties in Curved Pipe or Welded design specifications. Elbows, Section IH 1636-112 03 12-74 Stress Critena for Section 111, 1677 12-16-74 Clarification of Flange Design 07-01-77 Class 2 and 3 Pumps Sub-(N-82) 03-01-79 Loads, Section Ill, Class 1,2, jected to Upset, Emergency, and 3 and Faulted Operating 1678 12-16-74 Butterfly Valves of Circular Conditions 01-08-79 Cross Section Larger than 24 01-01-80 in. NPS for Section III, Class Code Case 1636-1 was acceptable subject to the 2 nd 3 Construction interpretation that the stress limit designations of 1681-113 03-03-75 Organizations Accepting " U pset," " Emergency," and " Faulted" do not (N-84) 03-01-79 Overall Responsibility for Sec-necessarily imply agreement with specified plant conditions applicable to ASME Code Class 2 and 1683-1 03-01-76 ot to es I r Section 111, 3 components for fluid systems. These designa-07-01-76 Class 1, 2, 3 and MC Compo-i tions should be established and justified in the design specifications. 1685 04-28-75 Furnace Br ing Section III, 1651 08-12-74 interim Requirements for Cer-01 01-78 Class 1, 2, 3 and MC Con-03-01-79 tification of Component Sup-struction ports. Section III, Subsection 1686 03-03-75 Furnace Brazing, Section III, NF 01-01-78 Subsection NF, Component 1657 11-04-74 Stress Criteria for Class 2 Supports 07-01-77 and 3 Atmospheric and Low 1689-1 09-10-76 Alternate PWHT Time and Pressure (0-15 psig) Steel 01 03 78 Temperature for SA-182 Storage Tanks Grade F-22, SA-387 Grade 1659 11-04-74 Interconnection of Two Piping 22 Class 2, and SA-335 07-01-77 Systems for Section 111 Class Grade P-22 Section III, Class 1, 2, and 3 Construction 1, 2, 3 and CS "The Code Case was annulled on July 10,1981 (ASME Code Case 1639-1 was acceptable subject to the fer 11, IS8["$ecN of$1 e ciNu"ns ar ceYan [decau e$he e following condition in addition to that specified in were no changes in the Code Case, the NRC considers tlat the Code Case: The alternate postweld heat treat- '[y,$d*g[was in effect during the period of 7-10-81 through ment should be prequalified along with the appli-8 " Code Cases 1635 and 1636 ucre approved by ASME on oCode Case 1681 was approved by ASME on 12-16-74 July 1,1974, and revised on August 12, 1974. Because Code and revised on 3-3-75. Because Code Case 1681 was not ;n Cases 1635 and 1636 were not in effect on Septernber 1,1974 effect on March 31, 1975, the Code Case was not included in i they are not included in this guide. this guide. 1.84-8 J

cable weldmg procedure in accordance with 17188 08-11-75 Design of Structural Connec-ASME Section IX. 07-01-76 tions for Linear Type Compo-nent Supports, Section - III, Division 1 Class 1, 2 and 3 '1692 04-28-75 Rules for Design of Welded and MC (N-90) 07-01-78 Class 1 Pumps 17198 08-11-75 Single-Welded,' Full-Penetra-1695-1 11-03-75 Brazing, Section III, Division 07-01-76 tion Sidewall Butt Joints in 01-01-78 1, Class 3 Atmospheric Storage Tanks, 1700 11 03-75 Determmation of Capacities - Section III, Division 1, Class 2 (N-94) 03-19-79 of Liquid Relief Valves, Sec-1726 11-03-75 Refinement of Low Alloy 03-19-82 tion III, Division 1 Class 1,2, (N-109) 03-01-79 Steel lleat Affected Zone Un-and 3 der. Overlay Cladding, Section 1701 2 07-09-79 Determination of Capacities III, Division 1. Class 1 Com-(N-95-2) 07-09-82 of Vacuum Relief Valves, ponents Section

III, Division 1,

1727 12-22-75 Alternate Test Fluids, Section Classes 2, 3, and MC and (N-110) 01-01-79 III, Division 1 Division 2 Concrete Contain-Code Case 1727 was acceptable subject to the i ments following condition in addition to those condi-i 1702-1 07-11-77 Flanged Valves Larger than tions specified in the Code Case: The ' applicant (N-96-1) 01-01-80 24 inches for Section III, should provide justification in the referencing } Division 1, Class 1, 2 and 3 Safety Analysis Report for the fluid selected for Construction use in the pressure test. The information pro-1703 06-30-75 Drazing of Copper Alloys Sec-v ded should demonstrate that the fluid selected 01-01-78 tion III, Class 2 will not have deleterious effects on the material 1706 06-30-75 Data Report Forms for Com-of the pressure boundary and that the fluid may 12-31-75 ponent Supports. Section 111, be safely used at the specified temperature and Class 1, 2 and 3 pressure of the test. When the fluid selected for i l'111 11-03-75 Pressure Relief Valve Design use is the operating fluid, additional information (N-100) 01-08-79 Rules, Section III, Division 1, is not required. 01-21-82 Class 1, 2 and 3 1 ~ 1 01-01-83 1729 11-03-75 Minimum Edge Distance-l (N-111) 03-01-79 Bolting for Section III, Divi-a Code Case 1711 was acceptable subject to the sion 1, Class 1, 2, and 3 and. i following conditions in addition to those condi-MC Construction of. Compo-l tions specified in the Code Case. The following nent Supports information should be provided in the Safety 1732 11-03-75 11ardsurfaced Valves with In-Analysis Report: (N-114) 01-01-79 let Connections less than 2-in. i Nominal Pipe Size for Section ] 7 (1) If stress limits are used in excess of those III, Division 1 Class 1 and 2 .j l specified for the upset operating condition, Construction 1. it should be demonstrated how the pressure 1733 11-03-75 Evaluation of Safe Shut Down l relief function is ensured. Refer to para- . (N-115) 01-78 Earthquake Loadings for Sec-l j graph 3.1, Section I, of the Case for Class 1 tion 111, Division 1, Class MC l ~ and paragraph 3.2, Section 11, of the Case Containment Vessels for Class 2 and 3 pressure relief valves. 1734 11-03-75 Weld Design for Use for Sec-i (N-116) 01-01-78 tion III, Division 1, Class 1,2 i (2) If Case 1660 is to be used in conjunction F and MC Construction of } with this Case, it should be stated that the Component Supports stress limits of Case 1660 supersede those of Code Case 1734 was acceptable subject to the paragraph 3.2(b), Section I, of Case 1711. following conditions in addition to those condi-Functional assurance of (1) above is re-tions specified in the Code Cese: If the configu-quired in all situations. ration of Figure 1 of the Code Case is'used for i Class 1 and MC component supports, full pene- -l tration welds should be used. The application of l 1712 08-11-75 Nameplates and Stamping for the configuration shown in Figures 2 and 3 (N-101) 03-01-79 Section III, Division 1, Class should be restricted to the welding of cans for r 1, 2, 3 and MC Construction ' spring encapst;1ation in spring hangers. In Figure I as Referenced in NA-8300 3, the length of the leg of the fillet weld adjacent l 1 i' 1.84-9 i i ? ---e n n +

F to the plate should be equal to the thickness of the following: "The certification of the Level III the exposed end of the plate; also, the leg of the nondestructive examination personnel for the fillet weld adjacent to the shell should be equal to purpose of this Section of the Code shall be the the thickness of the exposed end of the shell. responsibility of the employer of the Level Ill in-dividual. If the employer is not a Certificate 1739-4 11-17-80 Pump Internal items, Section Holder, then the verification of such certificate is (N-119-4) 12-01-83 111, Division 1, Class 1, 2, the responsibility of the Certificate Holder." and 3 1744 03-01-76 Carbon Steel Pipe Flanges 1791 01-14-77 Projection Resistance Welding ( (N-121) 03-01-79 Larger than 24 in., Section (N-154) 01-14-80 of Valve Seats. Section III, 111, Division 1, Class 2 and 3 Division 1. Class 1, 2 and 3 Construction Valves 1765 04-26-76 Machining After Hydrostatic 1796 01-14-77 Body Neck Thickness Deter-07-01-77 Testing Class 2 and 3 (N-159) 07-01-78 mination for Valves with inlet Construction Section 111, Di-Connections 4-Inch Nominal vision 1 Pipe Sire and Sma'ler, Sec-1768 06-29-76 Permanent Attachments to tion Ill, Division 1, Class 1, 2, 01-01-78 Containment Vessels-Class and 3 MC, Section Ill, Division 1 1808 02-16-77 F-Number Classification of 1769-1 02-16-77 Qualification of NDE Level 01-01-78 Low Alloy and Carbon Steel 10-01-77 Ill Personnel, Section 111, Di. Bare Rod Electrodes Sec-i vision 1 tions I, II,111, IV, V, Vill, 1774-1 07-11-77 Minimum Wall Thickness for and IX (N-142-1) 01-01-80 Class 2 and 3 Valves, Section 1812 03-23-77 Size of Fillet Welds for Socket 111, Division 1 (N-174) 01-07-80 Welding of Piping, Section 1775 08-13-76 Data Report Forms for Core 01-01-81 III, Division 1 08-13-79 Support Structures, Class CS, 1818 03-23-77 Welded Joints in Component Section III. Division 1 (N-175) 07-01-79 Standard Supports, Section 17S0-1 07-10-78 2 Hydrostatic Testing and III, Dhision 1 (N-14 6-1 ) 12-11-81 Stamping of Components, Code Case 1818 was acceptable subject to the-01-O b 82 decuon

Ill, Division 1

following condition in addition to those condi-Construction tions specified in the Code Case: That portion of Code Case 1780-1 was acceptable subject to the the unwelded housing that is limited to 90" maxi-following conditions in addition to those condi. mum should include a minimum of two sectors tions specified in the Code Case: On a generic that are uniform in length. basis, the application of the Code Case is limited to pumps and valves. Application to other com. N-179 07-11-77 Openings in Valves for Sec-ponents should be treated on a case-by-case ba_ 07-11-80 tion III, Division 1, Class 1, 2 sis. Each licensing apphcation in which the Code and 3 Construction Case is to be used should contain information N-182 07-11-77 Alternate Rules for Procedure showing that, as a minimum, the closure fixture 07-01-81 Qualification Base Material willimpose loads that result in stresses equal to or Orientation, Section Ill, Divi-greater than those induced during the hydrostatic sion 1. Class 2 and 3 Con-test of a complete pump assembly. A closure fix. struction ture for the part being tested that is similar in size N-184 07-11-77 Roll Threading of S A-453 and shape to the actual mating part is considered 07-01-79 Bolting for Section Ill, Dhi-adequate to impose these loads. It is not intended sion 1, Class 1, 2, 3 or CS that piping reaction loadings be simulated in the Construction hydrostatic testing. N-189 08-29-77 Primary Membrane Plus Pri-07-01-79 mary Bending Stress Intensity Limits f r Other Than Solid 1783-1 01-14-77 Qualification of Nondestruc-Rectangular Sections for Sec-01-01-79 tive Examination Personnel, tion III, Division 1, Class MC Section 111 Division 1 Construction Code Case 1783-1..a acceptable subject to the N-193 11-21-77 Use of SB-61 and SB-62 following cor*dition in addition to those condi-11-21-80 Bronze for Section Ill, Di-tions specified in the Code Case: The first sen-vision 1. Class 3 Flange and tence of paragraph (1) should be replaced with Socket Weld End Valves 1.84-10

' N-199 03-20-78' Intervening Elements, Section N-237-2 05-25-83 liydrostatic Testing of Inter-01-01-81 III, Division 1. Classes 1, 2, 3 07-30-86 nal Piping, Section, Ill, Di-4 and MC Component Con-12-07-87 vision 1, Classes 2 and 3 struction 07-01-88 \\ Code Case N-199 was acceptable subject to the N-238 05-14-79 liigh Temperature Furnace following condition in addition to those condi-01-01-82 Brazing of Seat Rings in Valve tions specified in the Code Case: The applicant Bodies or Bonnets for Section i should provide information in the referencing III, Division 1 Class 1,2, and Safety Analysis Report that demonstrates that all 3 Valves intervening elements have been designed in com-Code Case N-238 was acceptable subject to the pliance with the requirements of the respective following conditions in addition to those condi-design specification. tions specified in the Code Case: The furnace brazing process procedure qualification should in-( 1693 03-20-78 Welding Procedure Qualifica-clude a verification for nonsensitization as given (N-212) 01-01-81 tion of Dissimilar Metal Welds mA A 0, hacdces A or E, otAEM When " Buttering" with Alloy 4 A 708-74 whenever materials subject to sensitiza-Weld Metal and IIeat Treat-that a nonsensiu. ged. Documentation is required a ment May Be involved, Sec-zmg brazing procedure was em- .L tion III, Division 1, and Sec-ployed for valves produced to this Case. g N-214-2 05-25-83 Use of SA-351 Grade CN7M, N-252 11-19-79 Low Energy Capacitive Dis-t 12-31-83 for Valves, Section III, Divi-07-01-82 charge Welding Method for [ sion 1 . Temporary or Permanent At-r N-215" 05-15-78 Integrally Finned Titanium tachments to Components and 05-15-81 Tubes, Section Ill, Division 1, Supports, Section 111, Division ( Class 3 Construction 1, and XI - j N-217-1 01-07-80 Postweld IIcat Treatment of Code Case N-252 was acceptable subject to the 09-07-82 Weld Deposit Cladding on following conditions in addition to those condi-12-05-84 Classes 1, 2, 3, MC, and CS tions specified in the Code Case: The applicant 09-05-85 Items, Section 111, Division 1 should indicate in the Safety Analysis Report the [ 02-23-87 application, the material, and the material thick-ness to which the strain gage or thermocouple will N-220 08-28-78 Code Effective Date for Com-be attached by CD welding. i 07-13-81 ponent Supports, Section Ill, { i 07-13-84 Division 1 N-260-2 12-05-85 Weld Repair of SA-182 Type 12-05-88 316 Forgings, Section III, Di-N-22 6 11-20-78 Temporary Attachment of vision 1 Classes 1, 2, 3, and t-01-01-80 Thermocouples, Secticn 111, MC Division 1, Class 1, 2 and 3 Component Construction Code Case N-260-2 was acceptable subject to the i following condition in addition to those condi-i N-228 03-19-79 Alternate Rules for Sequence tions specified in the Code Case: Type 308 L 03-19-S2 of Completion of Code Data welding materials should not be used to repair l Report Forms and Stamping grade F 316 N forgings because of the difference for Section Ill, Class 1, 2, 3 in strength levels. and MC Construction N-261 05-15-80 Weld Procedure Qualification { N-229 01-08-79 Ahernate Rules for Fabrica-12-13-82 for Materials with Impact Re- ) 01-21-82 tion Welding SB-148 Alloy quirements for Section 111. 01-21-85 CDA 954 for Section Ill, Di-Division 1, Class 3 Construc-i ]' 01-21-88 vision 1. Class 3 Construction tion l N-263 03-17-80 Alternate Thread Forms, Se-1 N-233 01-08-79 Ahernate Rules for PWHT of 03-17-83 ries and Fits for Component 01-21-82 P-No. 6, Group 4 Material for Supports, Section Ill, Divi-d 09-17-84 Section III, Division 1, Class sion 1 1 09-17-87 1, 2, or 3 Construction Code Case N-263 was acceptable subject to the following conditions in addition to those condi- " code case N-215 was annuned errective May 15,1981. It was removed from active Code Lase listing with this Reilsson tions sEecified in the Code Case. The following F 29 of Regutatory Guide 1.84. information should be provided in the Safety 1.84 !

Analysis Report: (1) a description of the applica-N-300 11-17-S0 Pressure-Temperature Rat-tion, (2) a need for the use of the Code Case, 12-01-83 ings. Hydrostatic Tests, and and (3) a demonstration that support design will Minimum Wall Thickness of withstand maximum conditions of loading with Valves, Section III, Dhision the worst combination of thread tolerance. 1, Class 1 N-302 03-16-81 Tack Welding, Section 111, N-271 03-17-80 Simplified Method for Ana-11-28-83 Dhision 1, Construction 02-14-86 lyzing Flat Face Flanges with N-309 05-11-81 Identification of Materials for Metal to Metal Contact Out-05-11-84 Component Supports, Section side the Bolt Circle for Sec-Ill, Dhision 1 tion Ill, Class 2, 3, and MC N-314 05-11-81 Alternate Rules for Thread 1 { Construction 05-11-84 Engagement, Section III, Di-N-272 05-15-80 Compiling Data Report vision 1 { 01-01-82 Forms, Section III, Division 1 N-275 05-15-80 Repair of Welds, Section 111, Code Case N-314 was acceptable subject to the 12-07-82 Dhision 1 f Ilowing conditions in addition to those condi-12-31-83 ti ns specified in the Code Case: Applicants should identify in their Safety Analysis Report (1) Code Case N-275 was acceptable subject to the the minimum length of thread engagement and following condition in addition to those condi-(2) the procedure used to establish thread en-tions specified in the Code Case: Use of the Code gagement. Case is applicable only when the removal of an indication requires that the full weld thickness be N-320 07-13-81 Alternate PWHT for SA-487, removed and, in addition, the backside of the 12-31-83 Grade CA6NM, Section 111, weld assembly joint is not accessible for the re-moval of examination material. If an indication is N-328 12-11-81 Thermit Brazing or Welding removed and weld-metal layers still remain, it is O W -84 of Nomtmaral ha&mems, not acceptable to gouge through the wall in order 09-17-87 Section III, Daision 1 to qualify for use of the Code Case. Instead, ex-N-336 06-17-82 Examination of Welds Inac-amination of the cavity is required when such an 06-30-83 cessible During Pressure Test, indication has been removed. Section III, Division 1. Class MC N-276 03-17-80 Welding of SA-358 Pipe, Sec. N-339 06-17-82 Examination of Ends of Fillet 02-14-83 tion III, Dwision 1 09-17-84 Welds, Section III, Division 1, 02-14-86 Classes 1, 2, and MC N-279 05-15-80 Use of Torquing as a Locking N-341 06-17-82 Certification of Level 111 NDE 07-13-81 Device for Section 111, Divi. 05-19-85 Examiner, Section Ill, Dhi-sion 1, Class 1, 2, 3, and MC 02-23-87 sion 1 and 2 Component Supports 07-01-88 Code Case N-279 was acceptable subject to the N-346 06-17-82 Explosive Welding, Section following condition in addition to those condi-05-19-85 III, Division 1 tions specified in the Code Case: When torquing 06-30-86 or other preloading is used as a locking device N-347 12-07-82 Continuous Electric Resis-and the joint is later unloaded or disassembled, 12-13-85 tance Seam Welding of the bolting should be replaced unless it can be P-No. 8 Materials for Compo-demonstrated or proved to the authorized nu-nent Supports, Section III, clear inspector that the original bolting has not Dhision 1 been permanently strained. N-349 07-16-82 Pressure Testing Piping Sys-12-31-85 tems, Section III, Division 1, N-280 05-15-80 Alternate Rules for Examina-Classes 2 and 3 ( 07-01-81 tion of Welds in Section III, N-350 12-07-82 Postweld Heat Treatment-Class 3 Storage Tanks 09-05-85 Thickness of Material, Sec-N-281 05-15-80 Welding Operator Perform-tion III, Division 1 07-01-81 ance Qualification, Section III, Division 1 Code Case N-350 was acceptable subject to the N-282 05-15-80 Nameplates for Valves, Sec-following condition in addition to those condi-05-25-83 tion III, Dhision 1, Class 1,2, tions specified in the Code Case: Applicants wish-07-30-86 and 3 Construction ing to use this Case for other than P-1 materials 07-30-S9 should demonstrate that the use of this Case will 1.84-12

not adversely af fect the required material proper-N-421 02-14-85 Brazing Using a Radiant En-ties. 05-19-55 ergy Source, Section III, Divi-06-30-86 sion 1 [ j) N-357 ,e 12 13-62 Cenification of Matenal for

3. Code Cases that were endorsed by the NRC in 05-19-85 Component Supports, Section a prior vers:en of this guide and were superseded by L

\\ 07-01-85 III, Division 1, Subsection NF revised Code Cases on or after July 1,1974, should N-359 12-13-82 Weld Connection for Coaxial be considered as not endorsed as of the date of the 12-31-84 Cylinders, Section III, Divi-ASME action that approved the revised sersion of the sian 1 Class 1 Code Cases. These Code Cases that are no longer f N-362-2 07-12-84 Pressure Testing of Contain-endorsed are listed in the following by number, 04-05-87 ment Items, Section III, Divi-effective dates,'S and utle. 07-27-87 sion 1, Classes 1, 2, and MC 07-01-88 150816 12-13-71 Allowable Stresses, Design In-06-30-75 tensity and/or Yield Strength N-376 05-25-83 Pressure Testing of Embedded values, Secti n I, HI, and 07-30-86 Class 2 and 3 Piping. Section Ms ns 1 and 2 111, Division 1 1516-1 06-25-73 Welding of Seats m Valves for N-377 04-04-83 Effectise Throat Thickness of 08-11-75 Section Ill Applications 12-31-S3 Partial Penetration Groove 1539 11-06-72 Metal Bellows and Metal Dia-Welds, Section III, Division 1, Classes 1,,, and 3 (N-30-1) 11-21-77 phragm Stem Sealed Valves, Secti n III, Classes 1, N-3 S 3-1 07-18-85 Weld Repair of SA-182 Aus-and 3 09-05-85 tenitic Forgints. Section III, M 40-1 03-03-73 Dastomer DapMagm Vaks, Division 1, Classes 1, 2, and 3 01-14-77 Section III, Classes 2 and 3 Code Case N-3S3 was acceptable subject to the 1540-2 01-14-77 Elastomer Diaphragm Valves, following condition in addition to those condi-(N-31) 01-07-80 Section III, Class 2 and 3 tions specified in the Code Case: Applicants who 02-14-83 apply the provisions of this Case to permit mate-07-18-85 rial manufacturers to weld repair austenitic forg-Code Case 1540-2 (N-31) was acceptable subject p ings without re-solution heat treatment should w & fonowing conditions in addition to those ( provide justification to the NRC staff (via the conditions specified in the Code Case: Each ap-Safety Analysis Report) why this is acu*- le for plicant who applies the Code Case should m. di-their applications, including their evaluatia of cate in the referencing Safety Analysis Report the susceptibility for stress corrosion cracking. that the service life of the elastomer diaphragm should not exceed the manufacturer's recom-N-397 02-20-84 Alternauve Rules to the Spec-mended service life. This recommended service 02-20-67 tral Broadening Procedures of life should not exceed 1/3 of the minimum cycle N-1226.3 for Classes 1, 2. ~ life as established by the requirements of para-and 3 Piping, Section III, Di-graph 3 of the Code Case. In addition, the serv-VidU" I ice life of the elastomer diaphragm should not ex-Code Case N-397 was acceptable subject to the ceed 5 years, and the combined service and stor-following condition in addition to those condi. age life of the elastomer diaphragm should not tions specified in the Code Case. The Code Case exceed 10 years. is acceptable for specific plant applications on a 1541-1 08-13-73 Hydrostatic Testing of Em-case-by-case basis pending revision of Regulatory 09-30-76 bedded Class 2 and Class 3 Guide 1.122 " Development of Floor Design Re-Piping for Section III Con-sponse Spectra for Seismic Design of Floor-struct on Supported Equipment or Components." 1541-2 09-30-76 Hydrostatic Testing of Em-05-15-78 bedded Class 2 and Class 3 N-412 04-15-SS Alternative Rules for Witness-Piping for Section III, Divi-04-15-88 ing the Piping System Pressure sion 1 Construction 04-15-91 Tests of Classes 1, 2, and 3 1552 12-18-72 Design by Analysis of Section Piping Systems, Section III. 08-29-77 Ill, Class 1 Vahes Earlier date-date Code Case was approved by ASME; N-413 02-14-55 Minimum S. ire of Fi::et Welds later date-dae rev8 ion of code Case was approved by [n 02-14-88 for Subsection NF Linear ASME. \\w .Ivpe Supports, Section 111, '* Code Case 1508 is no larger hsted by ASME as a Section Ill Code case and is therefore deleted frorn the acceptable Division 1 nsting. 1 84-13

1553 12-18-72 Upset Heading and Roll quires that Class 1 and Class 2 valve manufactur-03-03-75 Threading of SA-453 for Bolt-ers meet the provisions of NCA 4000. "Ouality ing, Section ill Assurance," and, in addition, Class 3 valve 1555 12-18-72 Certification of Safety Rehef manufacturers should also meet the provisions of 01-14-77 Valves on Liqt. ids NCA 4000. 1606 11-05-73 Ftress Criteria for Section III, d 12-16-74 Class 2 and 3 Piping Sut>- N-62-4 09-05-85 Internal and External Valve jecced to Upset, Emergency. 07-27-88 Items, Section III, Division 1, and Faulted Operatmg 07-24-89 Class 1, 2 and 3 Code Case N-62-4 was acceptable subject to the Code Case 1606 was acceptable subject to the in-following condition in addition to those conci-terpretation that the stress limit designations of tions specified in the Code Case: The Code re- " Upset " " Emergency," and

  • Faulted" do not quires that Class 1 and Class 2 valve manufactur-necessarily imply agreement with specified plant ers meet the provisions of NCA 4000, " Quality conditions applicable to AS51E Code Class 2 and Assurance " and, in addition, Class 3 valve 3 components for fluid systems. These designa-manufacturers should also meet the provisions of tions should be established and justifed in the NCA 4000.

design specifications. N-62-5 07-24-S9 Internal and External Valve 1607 11-05-73 Stress Criteria for Section III, 12-11-89 ltems Section Ill Division 1, 11-04-74 Classes 2 and 3 Vessels Suh-Class 1, 2 and 3 jecteu to Upset. Emergency, Code Case N-62-5 was acceptable subject to the and Faulted Operating Condi-following condition in addition to those condi-uans tions specified in the Code Case: The Code re-Code Case 1607 was acceptable subject to the in-quires that Class 1 and Class 2 valve manufactur-terpretation that the stress limit designations of ers meet the provisions of NCA 4000, " Quality " U pset," " Emergency," and " Faulted" do not Assuranca," and, in addition, Class 3 valve necessarily imply agreement with specified plant manufacturers should also meet the provisions of conditions apphcable to ASN1E Code Chss 2 and NCA 4000. 3 components for fluid systems. These designa-tions should be established and justified in the 1630 11-04-74 External Pressure Charts for design specifications. (N-77) 07-10-75 High Yield Strength Carbon Steels and Low Alloy Steels. 1609-1 03-01-76 Inertia and Continuous Drive (Yield strength above 38 Ksi (N-55) 0 S-2 8-7 S Friction Welding, Section 1, to 60 Ksi inclusive.) For Sec-07-13-81 111, IV, VIII, Division 1 and tion Ill, Class 1, 2, 3, and 04-05-84 2, and IX 51C; and Section Vlli, Divi-l 1621-2 05-25-77 Internal and External Valve sion 1 and 2 l (N-62-2) 05-15-80 Items, Section 111, D; vision 1, 1683 03-03-75 Bolt Holes for Section III, Di-03-01-76 vision 1. Class 1, 2,3 and 51C 05-25-53 Class 1, 2 and 3 Line Valves 07-18-85 Component Suppons 1689 06-30-75 Alternate pWHT Time and Code Case 1621-2 (N-62-2) was acceptable sub-09 10-76 Temperature for SA-182 ject to the following. condition in addition to those Grade F22 Section III, Class conditions specified in the Code Case: The Code. 1, 2, 3 and CS require; that Class 1 and Class 2 valve manufac-turers meet the provisions of NCA 4000. " Quality Code Case 16S9 was acceptable subject to the j Assura nce," and, in addition, Class 3 vah; f 11 wing c ndition in addition to that pecified in s manufacturers should also meet the provisions of the Code Case: The alternate postweld beat treat-NCA 4000. ment should be prequalified along with the appli-cable weldmg procedure m accordance with ^ ' Cl " N-62-3 07-1845 Internal ar d External Valve 09-05-85 Items, Section Ill, Division 1, 1695 04-28-75 Brazing, Section III Class 3 Class 1, 2 and 3 Line \\ alves 11-03-75 Code Case N-62-3 was acceptable subject to the 1701 06-30-75 Determination of Capacities A follovcing con 6 tion in addition to those condi-03-20-78 of Vacuum Relief Valves Sec-tions specified in the Code Case The Code re-tion Ill, Class N1C 1.84 '4 ~

m 1701-1 03-20 78 Determination of Capacities 1761 04-26-76 Use of SB-148 Alloy CA954 (N-95-1) 03-19-79 of Vacuum Relief Valves, C1-14-77 for Section III. Division 1, 07-09-79 Section III, Division 1 and Class 2 cr 3 Flanged End 7m

2. Class MC Valves (V}1702 06-3C 75 Flanged Val /es Larger than 1761-1 01-14-77 Use of SE-148 Alloy CA954, 07-11-77 24 inches for Section lil, (N-133) 01-07-80 Section III, Division 1. Class 3 i

Class 1, 2 and 3 Construc-04-02-82 tion N-133-1 04-02-82 Use of SB-148 Alloys 952 and 1720 08-11 75 Weld End Preparation for 05-19-85 954, Section 111, Division 1, p 03-01-76 Section 111, Division 1 Con-Class 3 struction N j33 2 05-19-85 Use of SB-148 Alloys 952 and Code Case 1720 was acceptable subject to the 07-18-85 954 Section 111, Division 1, foilowing condition in addition to those condi-Class 3 tions specified in the Code Case: Weld end 1769 08-13-76 Qualification of NDE Level preparations other than those shcan in Figures 1, 02-16-77 III Pcrsonnel, Section III. Di-2, and 3 of the Code Case are not acccptable on vision 1 a generic basis. Such alternative end preparations 1774 08-13-76 Minimum Wall Thickness for should be treated on a case-by-case basis. 07-11-77 Class 2 and 3 Valves, Section Ill, Division 1 1720-1 03-01-76 Weld End Preparatica for 17g0 09 10-76 Ilydrostatic Testing and 11-20-78 Section 111, Division 1 Con-03.j o.78 Stamping of Pumps for Class 1 struction Construction, Section III, Di-Code Case 1720-1 was acceptable subject to the vision 1 following condiuon m addition to those condi-tions specihed in the Code Case: The acceptance Code Case 1780 was acceptable subject to the af weld e ne preparations other than those shown following conditions m addition to those condi- , in Figum 1,2, and 3 of the Code Case should be tions specified in the Code Case: Each licensing evalua!, m a case-by-case basi 5-application in ubich the Code Case is to be used should present information that satisfactorily 1739-2 O N '-78 Pump Internal items, Section demonstrates that the subassembly tests ade-(N-119 -2, 05-25-80 111, Division 1, Class 1, 2, f and 'i

    • Y *
  • E'" #

closure fixture for the test subassembly should 1739-3 08-25-50 Pump internal items Section adequately simulate the rigidity of adjacent subas-(N

  • 9-3) 11-17-80 lli, Division 1,

Class 1, 2, sembbes and also simulate the interface loadings and 3 from adjacent subassemblies tha; would result ' /39-4 02-20-S4" Durt.p Internal Items, Section from a hydrostatic pressure test of a complete (N-119-4) 07-1S-85 ;, Division

1. Class 1,

2, pump assembly. As a minimum, the closure fix-ture should impose loads that result in stresses equal to or greater than those induced during the N-119-5 07-18-85 Pt. .nternal items, Section hydrostatic test of a complete pump assembly. It 09-05-85 Ill, Division 1 Class 1, 2, is not intended that piping reaction loadings be and 3 simulated in the hydrostatic testing. 1745 03-01-76 Stress Indices for Structu al (N-122) 01-05-79 Attachments, Class 1. Sec-01-21-82 tion 111. Dwision 1 1783 09-10-76 Qualification of Nondestruc-01-21-85 01-14-77 tivc Personnel, Section III, o3 2j.33 Division 1 07-24 S9 Code Case 1783 was acceptable subject to the fo!'owing condition in addition to those condi-tions specified in the Code Case: The first sen-tence of paragraph (1) should bc replaced with "The Code Case u as 4 ( ) Decembcr 1, 1983 ( ASME mandamr> annul nu was rein >1ated on Teb-nondestructive examination personnel for the [qj ruary 20, in4. Itccouse of i. utancu and because purposes of this Section of the Code shall be the k 'j there m ere no Mnges in the Co. responsibility cf the employer of the Level Ill m.- i

z. the NPC.onsiders that this Case was in effut d

.he period of 12-1-63 4 throt4h 2- 0-84. dividual. If tne employer is not a Certificate 1 S4-15

Holder, then the verification of such certificate is N-237 07-09-79 Hydrostatic Testing of Inter-the responsibility of the Certificate Holder. 01-21-82 nal Piping, Section 111, Divi-09-07-o2 sion 1 1791 03-17-8018 Projection Resistance Welding N.237 1 09-07-82 Hydrostatic Testing of Inter-(N-154) 09-09-82 of Valve Seats, Section 11', 05-25-83 nal Piping, Section 1H, Divi-09-05-85 Division 1, Class 1, 2 and 3 sion 1, Classes 2 and 3 12-05-85 Valves N-260 01-07-80 Weld Repair of SA-182 Type 1797 03-23-77 Finned Tubing for Construc-05-25-83 316 Forgings, Section III, Di-(N-s60) 03-17-80 tion, Section III, Division 1 07-18-85 vision 1. Classes 1, 2, 3, and 09-07-S2 MC j 07-18-85 N-260-1 07-1S-85 Weld Repair of SA-182 Type 12-05-85 316 Forgings, Section 111, Di-N-192 01-09-78. Use of Flexible Hose for Sec-I' 08-30-79 tion 111, Diusion 1 Class 1, 2, and MC and 3 Construction Code Case N-260-1 was acceptable subject to the Code Case N-192 v is acceptable subject tc the f 11 wing c ndition in addition to those condi-following conditiens in addition to those condi-tions specified m the Code Case: lype 308 L tions specihed in the Code Case. The applicant welding materials should not be used ta repair should mdicate system application, design and gr de F 316 N forgings because of the difference operating pressure, and pressure-temperature rat-in strength levels. ing of the flexible hose. Data to demonstrate compliance of the flexible hose with NC/ N-304 06-11-81 Use of 20Cr-25Ni-6Mo (Alloy ND-3649, particularly NC/ND-3649.4(e), are re-04-05-84 UNS N08366) Welded Tubes quired to be furnished with the apphcation-07-12-S4 for Section 111, Division 1, Classes 2 and 3 Constniction N-192-1 05-30-79 Use of Flexible Hose for Sec-N-304-1 07-12-S4 Use of 20Cr-25Ni-6Mo (Alloy 09-16-S1 tion Ill, Division 1, Class 1, 2, 05-19-85 UNS NOS366) Welded Tub.es and 3 Construction for Section Ill, Division 1, Code Case N-192-1 was acceptable subject to the Classes 2 and 3 Construction following condi-ns in addition to those condi-N.304-2 05-19-85 Use of SB-676 20Cr-25 Ni-tions specified m the Code Case: The applicant 12-05-85 6Mo (Alloy UNS N08366) should in&cate system apphcation, design and Welded Tubes, Section Ill, operating pressure, and pressure-temperature rat-Division 1. Classes 2 and 3 ing of the flexible hose. Data to demonstrate N.304-3 12-05-85 Use of SB-676 20Cr-25Ni-compliance of the flexible hose with NC/ 02-23-87 6Mo (Alloy UNS N08366) ND-3649, particularly NC/ND-3649.4(e), are re-

Plate, Sheet, Strip and quired to be furnished with the application.

Welded Pipes, Section 111, Di-N-196 01-09-78 Exemption from th; Shake-vision 1, Classes 2 and 3 01-08-79 down Requirements When N-309 09-17-8418 Identification of %erials 12-05-85 for Component Supports, Sec-Plastic Analysis is Performed for Section HI, Division 1, tion Ill, Divisit n 1 Class 1 Construction N-318 07-13-81 Procedure for Evaluation of e e gn edan r N-21t 05-15-7S Use of S A-351, Grade u e n An mets on 07-13-81 CN7M, for Wives for Sec-Class 2 or 3 Piping, Section 09 07-82 tien

111, Division 1,

Ill, Division 1 Construction Code Case N-318 was acceptable subject to the N-214-1 04-07-82 L,se of SA-351 Grade CN7M, followine conditions in addition to those condi-05 25-83 for Vahes, Section HI, Dw..i- ~ tions specified in the Code Case. Applicants should identify in their Safety Analysis Report: (1) the method of lug attachment, (2) the piping

  • The Code Case was annuued on January 14, 1980 "The Code Case was annulled on May 11,1984 (ASME

( ASML mandatory annulment date ). It was reinstated on mandatory annulment date). It was reinstated on Septem-M arc h 17,1980. Because of the circumstances and because ber 17,1984. Because of the chrumstances and because there there were no t h nges in the Code Case, the NRC considers were no changes in the Code Case, the NRC considers that that this Case was in cMect during the pcriod of 1-14-80 this Case was in effect during the period of 5-11-84 through throagh 3-17-60. 9-17-84. 1.84-16

system involved, and (3) the location in the sys-N-362 02-14-83 Alternate Rules for Pressure tem where the Case is to be applied. 05-25-83 Testing of Containment items, Section III, Division 1 O 02-20-84 Procedure for Evaluation of N-362-1 05-25-83 Pressure Testig of Contain-V) N-318-120 ( 07-12-84 the Design of Rectangular 07-12-84 ment items, Section III, Divi-Cross Section Attachments on sion 1. Classes 1, 2, and MC Class 2 or 3 Piping, Section N-383 10-05-83 Weld Repair of SA-182 Aus-III, Division 1 07-18-85 tenitic Forgings, Section III, Code Case N-318-1 was acceptable subject to the Division 1, Classes 1, 2, and 3 fo!!owing conditions in addition to those condi-Code Case N-383 was acceptable subject to the I tions specified in the Code Case. Applicants following condition in addition to those condi-should identify in their Safety Analysis Report; tions specified in the Code Case: Applicants who (1) the method of lug attachment, (2) the piping apply the provisions of this Case to permit mate-system involved, and (3) the location in the sys-rial manufacturers to weld repair austenitic forg- ) tem where the Case is to be applied. iigs without re-solution heat treatment should i provide justification to the NRC staff (via the N-31 S-2 07-12-84 Procedure for Evaluation of S M R % is m @ i m 09-05-85 the Design of Rectar gular their applications, including their evaluation of Cross Secuon Attachments on I he susceptibility for stress corrosion cracking. Class 2 or 3 Piping Section ] Ill, Division 1 3491 11 2g-83 Procedure for Evaluation of Code Case N-318-2 was acceptable subject to the 07-30-86 the Design of Ho!!ow Circular following conditions in addition to those condi-07-24-89 Cross Section Welded Attach-tions specified in the Code Case. Applicants ments on Class 1 Piping, Sec-i should identify in their Safety Analysis Report: tion 111, Division 1 (1) the method of lug attachment, (2) the piping N-392 11-28-83 Procedure for Evaluation of system involved, and (3) the location in the sys-07-30-86 the Design of Hollow Circular tem where the Case is to be applied. 07-30-89 Cross Section Welded Attach-C N-318-3 09-05-85 Procedure for Evaluation of ments on Gasses 2 apd 3 Pip- ) ing, Section III, Dm.ston 1 ( 07-27-88 the Design of Rectangular i v 12-11-89 Cross Section Attachments on N-411 09-17-84 Alternative Damping Vahics f Class 2 or 3 Piping, Section 02-20-86 for Seismic Analysis of Classes l'1, Division 1 1, 2, and 3 Piping Sections, Code Case N-318-3 was acceptable subject to the Section Ill, Division 1 following conditions in addition to those condi-Code Case N-411 was acceptable subject to the tions specified in the Code Case. Applicants following conditions in addition to those condi-f should identify in their Safety Analysis Report: tions specifieti in the Ca' Case: (1) The damp-(1) the n.ethod of hag attashment, (2) the piping ing values specified may be used in analyzing pip-system involved, and (3) the location in the sys-ing retponse for seismic ar d other dynamic loads tem where the Case is to be applied. being filtered through building structures pro-vided response mode frequencies are limited to N-319 07-13-81 Alternate Procedure for Eva'- 33 Hz and below. Within this range, the Code 07-13-84 uation of Stresses in Butt Case damping should be used completely and j 07-13-87 Weld Elbows in Class 1 Pip-consistently, if used at all. (For equipment other l 07-24-69 ing, Section Ill, Division 1 than piping, the damping values specified in p N-319-1 07-24-89 Alternate Procedure for Regulatory Guide 1.61, " Damping Values for 1 08-14-90 Evaluation of Stresses in Butt Seismic Design of Nuclear Power Plants," should q Weld Elbows in Class 1 Pip-De used.) (2) The damping values specified may ) ing, Section 111, Dmston 1 be used only in those analyscs in which current N-345 06-17-82 Attachment of AMS 5382 Al-seismic spectra and procedures have been em-12-13-82 loy 31 Seat Rings by Friction played. Such use should be limited only to re-Welding, Section 111, Division sponse spectral analyses (similar to that used in

1. Classes 1, 2, and 3 the study supporting its acceptance-Reference NUREG/CR-3526). The acceptance of the use

' (A) with other types of dynamic analyses (e.g., time-history analysis) is pending further justification. wrhe conditional acceptance was inadverienity ornitted in Revision 23 of thu guide. (3) When used for reconciliation work or for sup-1.84-17

port optimization of existing designs, the effects D. IMPLEMENTATION of increased motioa on existing clearances and The purpose of this section is to provide on line mounted equipment should be checked. (4) This Code Case is not appropriate for analyz. information to applicants regarding the use of this ing the lynami response of piping systems using regulatory guide. sur .(s designed to dissipate energy by yieldmg

1. Except for those Code Cases that have been 6

(i.e., the design of which is covered by Code annulled by action of the ASME, the NRC staff has Case N-420). (5) This Code Case is not apphca' found the Code Cases listed in this regulatory guide ble to piping in which stress corrosion cracking under regulatory position C.1 acceptable for has occurred unlets a case-specific evaluation is appropriate use. Other Code Cases may be made and is reviewed by the NRC staff. considered for use in accordance with footnote 6 of the Codes and Standards rule, s50.55a of 10 CFR N-453 12-07-87 Nickel-Chromium-Molybde-Part 50' 11-30-88 num-Copper Stainless Steel l (UNS N08925) Welded Pipe

2. Components ordered to a specific version of a for Class 2 and 3 Construc-Code Case need not be changed because a tion.

Section

III, Divi-subsequent revision to the Code Case is listed as the sion 1 approved version in this guide.
3. Components ordered to a Code Case that was
4. Code Cases for Class I comp wents that are previously approved for use need not be changed f

not on the approved list of this guide (paragraph C.1) because the Code Case has been subsequently I or other regulatory guides, or for which authorization annulled. by the Commission has not been granted, are not

4. Code Cases on the approved list may be acceptable for Class 1 components.

applied to components that were in process of

5. Code Cases for other classes of components construction prior to the effective date of the Code that are not on the approved list of this guide Case within the limits specified in the Code Case and (paragraph C.1) or other regulatory guides should be applicable regulations or recommended in othtr j

considered not acceptable on a generic basis. regulatory guides. e) t l e 1.84-18 l 1

APPENDIX NUMERICAL LISTING OF CODE CASES N-31-1 N-284 N-395 N-62-6 N-292 N-410 N-106-2 (1720-2) N-304-4 N-411-1 g N 119-6 N-309-1 N-414 N-133-3 N-313 N-420 N-iS4-1 N-315 i N-430 N-155-2 (1792-2) N-316 N-433 N-160-1 N-318-4 N-442 N-192-2 N-34 5-1 N-196-1 N-368 -453-1 N-240 N-369 N-454 N-241 N-391-1 N-243 N-392-1 N-455 N-247 N-393 N-464 N-262 N-394 N-476 I h-Printed on recycled paper Federal Recycling Program l l l 1.84-19

_ Y C ~ ~~ ~ -w ~~X - ._v--- p UNITED STATES FIRST CLASS MAIL "EsEEEln70. PS s?jSS',0N POSTAGE AND FEES PAID USNRC PERMIT No. G-67 CFFICIAL BUSINESS PENALTY FOR PRIVATE USE, $300 1 ISE11E 120555064215 US URC-019F DIV 0F INFO SUP SVCS t CONTROL BRANCH DOCUMENT C C N T R L DESK 0 0 C UM E *' T P1-1240 DC 2GS55 WASHINGTON I 1 _.}}

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