ML20046D448
| ML20046D448 | |
| Person / Time | |
|---|---|
| Issue date: | 07/31/1993 |
| From: | NRC OFFICE OF NUCLEAR REGULATORY RESEARCH (RES) |
| To: | |
| References | |
| REGGD-01.147, REGGD-1.147, NUDOCS 9308200074 | |
| Download: ML20046D448 (10) | |
Text
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mg U.S. NUCLEAR REGULATORY COMMISSION Revision 10 h***eREGULATORY GU10E 1
OFFICE OF NUCLEAR REGULATORY RESEARCH REGULATORY GUIDE 1,147 INSERVICE INSPECTION CODE CASE ACCEPTABILITY ASME SECTION XI DIVISION 1 A. INTRODUCTION Cnteria for Nuclear Power Plants,' to 10 CFR Part 50 re9uires, in Part, that structures, systems, and compo-Section 50.55a, " Codes and Standards," of nms imp nant to sakty & designed, fabn,cated, 10 CFR Part 50, ", Domestic Licensing of Production erected, and tested to quality standards commensu-and Utilization Facilities,,, requires, in part, that each rate with the importance of the safety function to be operating license for a boiling or pressurized water-performed, Wheie generally recognized codes and cooled nuclear power facility and each construction standards are used,. Criterion 1 requires that they be I
permit for a utilization facility be subject to the condi-identified and evaluated to determine their applicabil-tions in paragraph (g), " Inservice Inspection Require-ity, adequacy, and sufficiency and be supplemented ments," of 50.55a. Paragraph (g) requires, in part, or modified as necessary to ensure a quality product that Classes 1, 2, and 3 components and their sup-in keeping with the required safety function.
ports meet the requirements of Section XI, " Rules for Inservice Inspection of Nuclear Power Plant Compo-This regulatory guide lists those Section XI ASME Code Cases t'.at are generally acceptable to nents "1 of the American Society of Mechanical En-the NRC staff for implementation in the inservice in-
)
gineers (ASME) Boiler and Pressure Vessel Code or specti n f light-water-cooled nuclear power plants.
i equivalent quality standards. Paragraph 50.55a(b), in part, references the latest editions and addenda in Any information collection activities mmt ined effect of Section XI of the Code and any supplemen-in this regulatory guide are contained as requirements tary requirements to that section of the Code. Foot-in 10 CFR Part 50, which provides the regulatory ba-note 6 to G 50.55a states that the use of specific Code sis for this guide. The information collection require-Cases may be authonzed by the Commission upon re-ments in 10 CFR Part 50 have been approved by the quest pursuant to paragraph 50.55a(a)(3), which re.,
Office of Management and Budget. Approval No.
quires that proposed alternatives to the described re-3150-0011.
quirements or portions thereof provide an acceptable B. DISCUSSION lesel of quality and safety.
General Design Criterion 1 " Quality Standards The ASME Boiler and Pressure Vessel Commit-and Records " of Appendix A, " General Design tee publishes a document entitled " Code Cases."1 Generally, the individual Code Cases that rnake up
' copies may be $btained from the American Society of Me-this document explain the intent of Code rules or pro-chanical Engineers, t)nited Engineering Center. 345 East vide for alternative requirements under special cir-47th Street. New Yott, NY 10017-cumstances.
UsN1:C REGl'IAToRY GUIDES Written comments may be submrtted to tne Regulatory Publications Branch, DF6PS, ADM, u.S. Nuclear Regulatory Commission, Washing-Regulatory Guides are issued to describe and make available to the pub-ton, DC 20555.
lic such informaison as methods acceptable to the NRC staff for imple-menting specifc parts of the Commiss.on's regulations. techniques Tre guides are issued in the folloeng ten broad divisions:
used by the statt in evaluating specific problems or postulated ace'*
- 1. Power Reactors
- 6. Products dents, and data reeded by the NRC staff in its revew of appucations for
- 2. Research and Test Reactors
- 7. Transportation permits and iconses. Regulatory Guides are not substitutes for regula*
- 3. Fuels and Materials Facihties
- 8. occupational Health tions, and comphance witn them is not reavited. Methods and solutions
- 4. Environmental and Siting
- 9. Antitrust and Financial Review dlfferent from those set out in the guides will be acceptable if trey pro-
- 5. Materials and Plant Protection
- 10. Gereral Copies of Issued guides may be purchased from the Govemment Printing perm t Ice 1
s offee at the current GPo price. Information on current GPo prces may te obtained by contacting the Superintendent of Docurrents, u.S.
This guide was issued after cons 4deration of comments rece6ved from f((
pp [or fs 2 the pubbc. Comments and suggestions for improvements in these t
guides are e couraged at all times, and gusaes will be revised, as ap-Issued gu6 des may also te purcisased from the National Technicalinfor-J propriate, to accommoJate comments and to reflect rew informat on or rnation Service on a standing order basis. Detalis on this service may be answ 6ence.
obtained by vmting tfris, 52t15 Port Royal Road, Springfeld, VA 02161.
l h'hi
'9308200074 930731 PDR REGGD
/Up 01.147 R PDR a
Most Code Cases are eventually superseded by below (by number, date of ASME approval,3 and ti-revision of the Code and then are annulled by action tie) are acceptable to the NRC staff for application in of the ASME. In such instances, the intent of the the inservice inspection of components and their sup-annulled Code Case becomes part of the revised ports for water-cooled nuclear power plants. Their Code, and therefore continued use of the Code Case use is acceptable within the limitations stated in the intent is sanctioned under the rules of the Code. In
" Inquiry" and " Reply" sections of each individual other instances, the Code Case is annulled because it Code Case, within the limitations of such NRC or is no longer acceptable or there is no further other requirements as may exist, and within the addi-requirement for it. A Code Case that was approved tionallimitations recommended by the NRC staff and q
for a particular situation and not for a generic given with the individual Code Case in the list.
application should be used only for the approved situation because annulment of such a Code Case 1705-1 3-1-76 Uhrasonic Examination-could result in situations that would not meet Code N-9 8 11-20-78 Calibration Block Tolerances, 1-21-82 Section XI requirements. The ASME considers the use of Code 12-5-84 Cases to be optional for the user and not a 12-5-87 mandatory requirement.
l 12-3-90 The Code Cases listed in this guide are limited to N-113-1 12-13-82 Basic Calibration Block for those cases applicable to Section XI of the Code.
2-14-85 Ultrasonic Examination of All published Code Cases that are applicable to 2-14-88 Weld.,10 in. to 14 in. Thick,Section XI of the Code and were in effect on August 12-3-90 Section XI, Division 1 14, 1991, were reviewed for inclusion in this guide.
N-2114 7-13-81 Recalibration of Ultrasonic Code Cases that are not listed herein are either not 7-13-84 Equipment Upon Change of endorsed or will require supplementary provisions on 5-7-87 Personnel Section XI, Divi-an individual plant basis to attain endorsement status.
4-30-90 sion 1 N-235 1-8-79 Ultrasonic Calibration Checks The endorsement of a Code Case by this guide 4-2-82 per Section V,Section XI, DL constitutes acceptance of its technical position for 2-14-85 vision 1 applications not precluded by regulatory or other 2-14-88 requirements or by the recommendations in this or of l 12-3-90 other regulatory guides. Contingent endorsement if applicable is ind;cated in regulatory position 1 for N-236-1 9-5-85 Repair and Replacement 9-5-88 Class MC Vessels.Section XI, specific cases. However, it is the responsibility of the 8-14-91 Division 1 l
user to make certain that no regulatory requirements are violated and that there are no conflicts with other erna ra c Cab.
. recommended limitations resulting from Code Case 3-17-83 bration Block Configuration usage.
5-25-S35 I-3131 and T-434.3, Section Acceptance or endorsement by the NRC staff 2-19-86 XI, Division 1 applies only to those Code Cases or Code Case 2-19-89 revisions with the date of ASME approval as shown Code Case N-278 is acceptable subject to the fol-in the regulatory position of this guide. Earlier or lowing conditions in addition to those conditions later revisions of a Code Case are not endorsed by specified in the Code Case: When a universal this guide. New Code Cases will require evaluation by calibraion block is used and some or all of the the NRC staff to determine if they qualify for reference holes are larger than the reflector holes inclusion in the approved hst. Because of the at comparable depths recommended by Article continuing change in the status of Code Cases, it is IV,Section V,1980 edition of the ASME Code, planned that this guide will require periodic updating to accommodate new Code Cases and any revision of when n. ore than one date is ghen, the earlier date is that existing Code Cases, on which the Code Case was approved by the ASME, and the later date (or dates) is that on which the Code Case was reaf- -
firmed by the ASME.
C.REGULATOl
'OSITION
- The Code Case was annulled on 3-20-81 (ASME manda-
- 1. The Section XI ASME Code Cases 2 listed
' 'Y """"I"*"' d"'d II *
- S '*i"'"'*d
" 74 3-8I' B *' ""*
there was no change m the Code Case, the NRC considers that the Case was in effect during the period 3-20-81 through 7-13-81.
SCode Case N-278 was inadvertenth allowed to expire be-cause of an ASME administrative enor c>n 3-17-83. its man-l
' Lines indicate substantive changes from Revision 8.
datory annulment date. The Code Case without any technical changes was reinstated on 5-25-83. Because of these circum-2A numerical hsting of the Code Cases appears in the ap.
stances, the Code Case is considered to be in effect during that pendix.
period of time.
1.147-2 a
1
a correction factor should be used to adjust the N-402-1 3-14-91 Eddy Current. Calibration DAC level to compensate for the larger reflector Standards,Section XI, holes. Also, if the reactor pressure vessel was Division 1 i
previously examined by using a' conventional N-408-2 7-24-89 Alternative Rules for Exami-block, a ratio between the DAC curves obtained nation of Class 2 Piping, Sec-from the two blocks should be noted (for refer-tion XI, Division 1 ence) with the significant indication data.
Code Case N-408-2 is acceptable subject to the following condition in addition to those condi-l N-307-1 12-5-84 Revised Ultrasonic Examina-tions specified in the Code Case: The applicant 12-5-87 tion Volume for Class 1 Bolt-for an operating license should define the Class 2 l
12-3-90 ing. Table IWB-2500-1. Ex-piping subject to volumetric and surface exami-amination Category B-G-1, nation in the Preservice Inspection for 'determi-When the Examinations Are nation of acceptability by the NRC staff.
Conducted from the Center-4 Drilled Hole,Section XI, N-409-2 7-27-88 Procedure and Personnel 1
for Ultrasonic Detection and l Qualification Requirements Division 1 5-13-91 N-311 5-11-S1 Alternative Examination of 4-5-84 Outlet Nozzle on Secondary Sizing of Flaws in Piping j
5-7-87 Side of Steam Generators, Welds,Section XI, Division 1 j
4-30-90 Section XI, Division 1 Code Case N-409-2 is acceptable subject to the following condition in addition to those condi-Code Case N-311 is acceptable subject to the fol.
tions specified in the Code Case: The applicant lowing condition in addition to those conditions should give prior notification to the NIIC of the specified in the Code Case: The applicant should intention to use the Code Case.
. indicate in the Safety Analysis Report that the N-415 9-5-85 Alternative Rules for Testing stress analysis of the nozzle inside-corner region 9-5-88 Pressure Relief Devices, Sec-meets the Code Case stipulations for the state of 8-14-91 tion XI, Dmss,on 1 stress in this region.
N-416 12-5-85 Alternative Rules for Hydro-N-335-1 6-20-85 Rules for Ultrasonic Exami-12-5-87 static Testing of Repair or Re-6-20-88 nation of Similar and Dissimi.
12-3-90 placement of Class 2 Piping, l
)
5-13-91 lar Metal Piping Welds, Sec-Section XI, Division 1 tion XI, Division 1 N-419 7-18-85 Extent of VT-1 Examinations, N-355 7-16-82 Calibration Block for Angle 7-18-88 Category B-G-1 of Table 2-14-85 Beam Ultrasonic Examination 5-13-91 IWB-2500-1.Section XI, Di-l 2-14-88 of Large Fittings in Accor.
vision 1 -
l 12-3-90 dance with Appendix III.
N-426 7-18-85 Extent of VT-1 Examinations, 3410.Section XI, Dhision 1 7-18-88 Category B-G-2 of Table N-356 7-1.gge Certification Period for Level 5-13-91 IWB-2500-1,'Section XI. Di-l 10-23-88 III NDE Personnel, Section vision 1 XI Division 1, 2 and 3 N-427 12-5-85 Code Cases in Inspection N-389 7-25-83 Alternative Rules for Repairs, 12-5-88 Plans,Section XI, Division 1 5-14-86 Replacements, or Modifica-5-14-89 tions,Section XI. Division 1 Code Case N-427 is acceptable subject to the fol-Code Case N-389 is acceptable subject to the fol.
lowing condition in addition to those conditions lowing condition in addition to those conditions specified in the Code Case. The sentence under specified in the Code Case: The applicant should (b)(1) should be replaced with the following:
submit for approval the appropriate edition and Code Cases that were superseded with revised addenda of the Code that is to be used for the Code Cases and had been approved for use in repair, replacement, or modification before start accordance with (a) may continue to be used.
of the work.
N-401-1 5-4-88 Eddy Current Examination, N-429-1 2-23-87 Alternative' Rules for Ultra-5-13-91 Section XI, Dhision 1 3-5-90 sonic Instrument Calibration.
Section XI, Division 1 N-432 2-20-86 Repair Welding Using Auto-j-
eMy 1.1988, is the date that the conditions of the Code 2-20-89 matic or Machine Gas Case were arreptaNe to the NRC.:
Tungsten-Arc Welding 1.147-3
1 (GTAW) Temperbead Tech-in the Code Case: The first successive examin-nique,Section XI, Dh-ision 1 ation required by IWB-2420 or IWC-2420 shall N-4 35-1 7-30-86 Alternative Examination Re-be performed. The owner shall evaluate the re-7-30-89 quirements for Vessels with sults of the on-line acoustic emission monitoring to confirm that the conclusions from the acoustic Wall Thickness 2 in. or less,Section XI, Division 1 emissi n data represent the condition of the flaw mdication as estimated from the first successive N-4 37 7-30-86 Use of Digital Readout and ISI Examination and the data can be correlated 1
7-30-89 Digital Measurement Devices with the known plant operating environment.
for Performing Pressure Tests,Section XI, Division 1 N-472 3-F-89 Use of Digital Readout and N-448 7-27-87 Qualification of VF-2 and Digital Measurement Devices 4-30-90 VT-3 Visual Examination Per.
for Performing Pump Vibra-sonnel,Section XI, Division 1 tion Testing,Section XI, Divi-Si "1 N-4 49 7-27-Es 7 Qualification of VT-4 Visual 4-30-90 Examination Personnel, Sec-N-4 79-1 12-3-90 Boiling Water Reactor {BWR) tion XI, Division 1 Main Steam Hydrostatic N-457 l'
Q"alification Specimen Notch Test,Section XI. Division 1 l
l b.,
.ocation for Ultrasonic Ex-amination of Bolts and Studs, N-481 3-5-90 Alternate Examination Re-Section XI, Division 1 quirements for Cast Austeni-tic Pump Casings,Section XI, N-4 5 8 8-1440 Magnetic Particle Examina-Division 1 tion of Corted Materials,Section XI, Division 1 N-4 85-1 8-14-91 Eddy Current Examination of
~
N-4 60 7-27-88 Alternative Examination Cov-Coated Ferritic Surfaces as an l
5-13-91 erage for Class 1 and Class Alternative to Surface Exam-2 Welds,Section XI, Divi, ination,Section XI, Divi,
sion 1 SiOD I N-461 11-30-88 Alternative Rules for Piping N-4 89 8-14-90 Alternative Rules for Level 111 l
S-14-91 Calibration Block Thickness, NDE Qualification Examina-Section XI, Division 1 tions,Section XI, Divisions 1, 2, and 3 Code Case N-461 is acceptable subject to the following condition in addition to those condi-N-4 90- 1 5-13-91 Alternative Vision Test Re-tions specified in the Code Case: Thickness quirements for Nondestructive measurements and weld joint contour of the Examiners,Section XI, pipe / component must be known and used by the Divisions 1, 2, and 3 inspector who conducts the UT examination.
N-491 3-14-91 Alternative Rules for Exami-nation of Class 1, 2, 3 and MC Component Supports of N-4 63-1 3-5-90 Evaluation Procedures and Light-Water Cooled Power Acceptance Criteria for Flaws Plants,Section XI, Division 1 in Class 1 Ferritic Piping That Exceed the Acceptance N-494 12-3-90 Pipe Specific Evaiuation Standards of IWB-3514.2, Procedures and Acceptance Section XI, Division 1 Criteria for Flaws in Class 1 11-30-88 Alternative Rules for Pump Ferritic Piping that Exceeds l N-465 8-14-91 Testing,Section XI, Divi, the Acceptance Standards of sion 1 IWB-3514.2,Section XI, Division 1 N-4 71 4-30-90 Accoustic Emission for Suc_
cessive Inspections, Section N-495 12-3-90 Ilydrostatic Testing of Relief XI, Division 1 Valves,Section XI, Division 1 Code Case N-471 is acceptable subject to the N-496 3-14-91 Helical Coil Threaded following conditions in addition to those specified Inserts,Section XI, Division 1 1.147-4 i
N-4987 5-13-91 Alternative Rules for 10-Year Code Case N-210 was acceptable subject to the liydrostatic Pressure Testing following condition in addition to those condi-for Class 1 and 2 Systems, tions specified in the Code Case. Paragraph (3) n Section XI, Division 1 of the " Reply" should be replaced with the fol-
- 2. Code Cases that were endorsed by the NRC in I wing: Repairs to piping, pumps, and valves a prior version of this guide and were later annulled where the depth of the repaired cavity does not by action of the ASME should be considered as exceed 25 percent of the wall thickness, deleted from the list of acceptable Code Cases as of N-211 3-20-78 Recalibration of Ultrasonic the date of the ASME action that approved the 3-20-81 Equipment Upon Change of annulment. Such Code Cases that were annulled on Personnel,Section XI, Divi-or after November 1,1978, are listed below by sion 1 number, effective dates,8 and title.
N-216 3-10-78 Alternative Rules for Reactor 7-13-81 Vessel Closure Stud Examina-1551 11-6-72 Inservice Inspection of Welds 7-13-84 tion,Section XI, Division 1 N-34 11-20-78 on Nuclear Components, Sec.
11-20-81 tion XI 5-7-87 5-7-90 l
1646 8-12-74 Partial Postponement of Cate.
N-72 11-20-78 gory B-C Examination for N-234 1-8-79 Time Between Ultrasonic 1-1-81 Class 1 Components, Section 1-21-82 Calibration Checks.Section XI 12-5-84 XI Division 1 1647 8-12-74 Partial Postponement of Cate-12-5-87 I
N-73 11-20-78 gory B-D Examination for 12-3-90 1-1-81 Class 1 Components, Section N-252 11-19-79 Low Energy Capacitive Dis-XI 7-16-82 charge Welding Method for 1730 11-3-75 Acceptance Standards for Temporary or Permanent At-N-112 7-1-79 Class 2 and 3 Components, tachments to Components and Section XI, Division 1 Supports,Section III, Division 1738 12-22-75 Examination - Acceptance 1 and XI N-118 11-20-78 Standards for Surface Indica-1-21-82 tions in Cladding,Section XI Code Case N-252 was acceptable subject to the z
1-21-85 following condition in addition to those condi-1-21-88 tions specified in the Code Case: The applicant 12-3-90 should indicate in the Safety Analysis Report the application, the material, and the thickness of Code Case 1738 (N-118) was acceptable subject the material to which the strain gage or thermo-to the followmg condition in addition to those couple will be attached by CD welding.
conditions specified in the Code Case. The last N-288 8-25-80 liydrostatic Test Require-sentence of the " Reply" should be replaced with 5-25-83 ments for Class 1 and Class 2 the following: The provisions of this Code Case Components,Section XI, Di-rnay not be applied for the examination of clad vision 1 surfaces of nozzles, including the inner surface of l
the nozzle-to-vessel insert welds.
N-306 1-15-81 Calibration Block Material 4-5-84 Selection, Appendix 1,
1804 1-14-77 Minimum Section Thickness 5-7-87 1-3121,Section XI, Division N-167 1-14-S0 Requirements for Repair of 5-7-90 1
Nozzles,Section XI, Divi-N-308 9-30-81 Documentation of Repairs 9-30-84 and Replacements of Compo-l N-210 3-20-78 Exemption to liydrostatic 9-30-87 nents in Nuclear Power f
3-20-81 Tests After Repairs, Section 4-30-90 Plants,Section XI Division 1 1
XI, Division 1 9-30-90 N-343 4-2-82 Alternative Scope of Exami-2-14-85 nation of Attachment Welds
' Code Case N-498 was approved for une by ASME on 5-13-91. It was included in Revision 9 of this guide because of 2-14-88 for Examination CateEories an urgent need for the case.
12-3-90 B-II, B-K-1, and C-C, Section
' Earlier date-date Code Case was approved by ASME; XI, Division 1
/m iater date-date Code Case was annuDed. Where more than N-375-2 4-5-84 Rules for Ultrasonic Examina-I
\\
two dates appear, the last date is the date that the Code Case I
was annulled. The rniddle date (or dates) was the date of reaf-5-7-87 tion of Bolts and Studs Sec-w firmation of the Code Case.
5790 tion XI, Division 1 1.147-5
N-406 4-5-84 Alternative Rules for Replace-
- b. In paragraph 1.0(a), third sentence-the 5-7-87 ment,Section XI, Division 1 phrase, "the next scheduled plant outage," refers to 5-7-90 the next scheduled refueling outage.
N-424 7-1S-85 Qualification of Visual Exami-For clarification, Repair and Replacement of 7-18-88 nation Personnel,Section XI' Class MC Vessels means Repair and Replacement of Division 1 Class MC Vessels and Components (systems). Ac-N-4 3 6-1 12-7-87 Alternative Methods for ceptance of this Code Case in no way infers NRC 12-3-90 Evaluation of Flaws in Aus-approval to violate the technical specification or any tenitic Piping,Section XI, Di-NRC requirements with regard to breach of contain-I vision 1 ment during repair and replacement procedures while the plant is in operation.
N-4449 12-7-87 Preparation of Inspection 12-3-90 Plans,Section XI, Dwision 1 Where a numbered Code paragraph is not N-445 5-7-87 Use of Later Editions of SNT.
identified by a particular edition of the Code, the 5-7-40 TC-1A for Qualification of Code in effect at the time of the ASME meeting Nondestructive Examination (11-3-78) that approved the Code Case should be Personnel.Section XI, Divi-g verning.
sion 1, 2, and 3 N-307 1-15-81 Revised Ultrasonic Examina-N-446 5-7-57 Recertification of Visual Ex-4-5-84 tion Volume for Class 1 Bolt-5-7-90 amination Personnel, Section 12-5-54
- ing, Examination Category XI, Division 1 B-G-1, When the Examina-tions Are Conducted from the
- 3. Code Cases that were endorsed by the NRC in Center-Drilled Hole, Section a prior version of this guide and were superseded by XI, Division 1 revised Code Cases on or after November 1,1978.
N-335 4-2-82 Rules for Ultrasonic Examina-should be considered as not endorsed as of the date 2-14-85 tion of Similar and Dissimilar of the ASME action that approved the revised 6-20-85 Metal Piping Welds, Section version of the Code Cases. These Code Cases that XI, Division 1 are ro longer endorsed are listed in the following by N-375n 2-14-83 Rules for Ultrasonic Examina-number, effective dates,10 and title.
41483 tion of Bolts and Studs Sec-tion XI, Division 1 1731 11-3-75 Basic Cahbration Block for N-375-1 4-14-83 Rules for Ultrasonic Examina-N-113 11-20-78 Ultrasonic Examination of 4-5-84 tion of Bolts and Studs, Sec-1-21-82 Welds 10 in. to 13 in. Thick, tion XI, Division 1 12-13-82 Section X1, Division 1 N-401 2-20-84 Eddy Current Examination, N-236 1-S-79 Repair and Replacernent of 2-23-87 Section X1, Division 1 1-21-82 Class MC Vessels,Section XI, 5-4-88 12-5-84 Division 1 N-402 2-20-84 Eddy Current Calibration 9-5-85 2-23-87 Standard Material, Section Code Case N-236 was acceptable subject to the 3-5-90 XI, Division 1 following conditions in addition to those condi-3-14-91 tions specified in the Code Case:
N-408 7-12-84 Alternative Rules for Exami-5-7-S7 nation of Class 2 Piping, Sec-
- a. In paragraph 1.0(a), second sentence-the 3-8-89 tion XI, Division 1 phrase, "while the plant is not in sernce," refers to a
'etuehng outart N-4 08-1 3-S-89 Alternative Rules for Exami-7-24-89 nation of Class 2 Piping, Sec-tion XI, Division 1 Code Case N-40S-1 was acceptable subject to the avahe stroke times may be documented outside of the IST following condition in addition to those condi-bcoNs'n cYs$ ifr imb$ r ke t[rfcIchiYe tions specified in the Code Case: The applicant 3
th by " supplement 4-Content of twv valve Test Tables " it is for an operating license should define the Class 2 not necessary to submit a revised IST prer, ram to the NRC selely to document a revision in valve stroke time.
piping subject to volumetric and surface examin-ation in the Preservice Inspection for determina-
'*Earber date-date Code Case was approved by ASME; later dam-date revision of Code Case w as approud h>
tion of acceptability by the NRC staff.
ASME. Where mere than Iwo dates appear, the last date is the date on w hich the Code Case was resed. The middic date
" Code Case N-375 was net listed prior to Revision 3 of this (or dates) was the date of reaffirmanon of the Code Case.
regulatory guide.
1.147-6
N-409 12-5-84' Procedure and Personnel N-490 8-14-90 Alternative -
Vision Test 12-7-87 Qualification for Ultrasonic 5-13-91 Requirements for Nondestruc-Detection and Sizing of tive Examiners,Section XI, Intergranular Stress Corrosion Divisions 1, 2, and 3 Cracking in Austenitic Piping
- 4. Code Cases that are not on the approved list
~
Welds,Section XI, Division 1 of this guide (paragraph C.1) or other regulatory-N-409-1 12-7-87 Procedure and Personnel guides, or for which authorization by the Commission
.7-27-88 Qualification Requirements has not been granted, are not acceptable on a generic 1
for Ultrasonic Detecuon and basis.
Sizing of Flaws in Piping
)
Welds,Section XI, Division 1
[-
D. IMPLEMENTATION
?
Code Case N-409-1 was acceptable subject to the following condition in addition to those condi-The purpose of this section is to provide I
tions specified in the Code Case: The applicant information to applicants regarding the use of this should give prior notification to the NRC of the regulatory guide.
- 1. Except for those Code Cases that have been
'I intention to use the Code Case.
N-429 12-5-85 Alternative Rules for Ultra.
annulled by action of the ASME, the NRC staff has 2-23-87 sonic Instrument Calibration, found the Code Cases listed in this regulatory guide Section XI, Division 1 under regulatory position C.1 acceptable for t
N-435 5-14-86 Alternative Exarnination Re.
appropriate use. Other Code Cases may be considered for use in accordance with footnote 6 of i
7-30-86 quirements for Vessels with Wall Thickness 2 in. or Less, the Codes and Standards rule, 9 50.55a of 10 CFR 1
Section XI, Division 1 Part 50.
[
N-436 5-14-86 Alternative Methods for
- 2. Code Cases to be applied during an inspection 12-7-87 Evalurtion of Flaws in Aus-interval or Code Cases for a preservice inspection tenitic Piping,Section XI, Di-need not be changed because a subsequent revision vision 1 of the Code Case is listed as the approved version in N-463 11-30-88 Evaluation Procedures and this guide.
3-5-90 Acceptance Criteria for Flaws
- 3. Code Cases to be applied during an inspection '
'i in Class 1 Ferritic Piping That nterval or Code Cases for a preservice inspection i
Exceed the Acceptance that were previously approved for use may continue i
Standards of, IWB-3514.2, to be used even though the Code Case has been sub-Section XI, Division 1 sequently annulled.
N-479 7-24-89 Boiling Water Reactor (BWR)
- 4. Code. Cases on the approved list may be ap-12-3-90 Main Steam Ilydrostatic Test' plied to procedures for an inspection interval and'-
)
Section XI, Division 1 procedures for the inservice inspection that were es-N-485 4-30-90 Eddy Current Examination of tablished prior to the effective date of the Code Case
)
8-14-91 Coated Ferritic Surfaces as an within the limits specified in the Code Case and appli-Alterantive to Surface Exam-cable regulations or recommended in other regulatory l
instion,Section XI, Division 1 guides.
(
i I
l i
i l
)
l l
1.147-7 1
APPENDIX NUMERICAL LISTING OF CODE CASES N-98 (1705-1)
N-435-1 N-113-1 N-437 N-211 N-448 N-235 N-449 N-23 6-1 N-457 N-278 l N-458 N-307-1 N-460 N-311 N-461 N-335-1 N-4 63-1 N-355 N-465 N-356 N-471 N-389 N-472 N-401-1 l N-402-1
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N-408-2 N-4 85-1
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N-409-2 N-489 N-415 N-490-1 1
N-416 N-419 N-491 N-426 N-494
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N-427 N-495 l
N-429-1 N-496 N-432 N-498 l
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Fec'eral Recycling Program
UNITED STATES F'IRST CLASS Mall f
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