Regulatory Guide 3.45: Difference between revisions

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{{Adams
{{Adams
| number = ML003739423
| number = ML122430316
| issue date = 04/30/1989
| issue date = 04/30/1989
| title = (Task CE 802-5) Revision 1 Nuclear Criticality Safety for Steel-Pipe Intersections Containing Aqueous Solution of Fissile Materials (Withdrawn 9/1998)
| title = Nuclear Criticality Safety for Steel-Pipe Intersections Containing Aqueous Solutions of Fissile Materials
| author name =  
| author name =  
| author affiliation = NRC/RES
| author affiliation = NRC/RES
Line 10: Line 10:
| license number =  
| license number =  
| contact person =  
| contact person =  
| document report number = RG-3.45 Rev 1
| case reference number = CE 802-5
| document report number = RG 3.45, Rev. 1
| document type = Regulatory Guide
| document type = Regulatory Guide
| page count = 4
| page count = 4
}}
}}
{{#Wiki_filter:q U.S. NUCLEAR REGULATORY  
{{#Wiki_filter:Z ~ .- r"~ , %- (U.S. NUCLEAR REGULATORY  
COMMISSION  
COMMISSION
REGULATORY  
REGULATORY
GUI OFFICE OF NUCLEAR REGULATORY  
Revision 1 April 1989 GUIDE OFFICE OF NUCLEAR REGULATORY  
RESEARCH REGULATORY  
RESEARCH REGULATORY  
GUIDE 3.45 (Task CE 802-5) NUCLEAR CRITICALITY  
GUIDE 3.45 (Task CE 802-5)NUCLEAR CRITICALITY  
SAFETY FOR STEEL-PIPE  
SAFETY FOR STEEL-PIPE  
INTERSECTIONS  
INTERSECTIONS  
CONTAINING  
CONTAINING
AQUEOUS SOLUTIONS  
AQUEOUS SOLUTIONS  
OF FISSILE MATERIALS  
OF FISSILE MATERIALS  


==A. INTRODUCTION==
==A. INTRODUCTION==
Section 70.22, "Contents of Applications," of 10 CFR Part 70, "Domestic Licensing of Special Nu clear Material," requires that applications for a spe cific license to own, acquire, deliver, receive, possess, use, or transfer special nuclear material contain pro posed procedures to avoid accidental conditions of criticality.
Section 70.22, "Contents of Applications," of 10 CFR Part 70, "Domestic Licensing of Special Nu-clear Material," requires that applications for a spe-cific license to own, acquire, deliver, receive, possess, use, or transfer special nuclear material contain pro-posed procedures to avoid accidental conditions of criticality.


This regulatory guide provides guidance for complying with this portion of the Commission's regu lations by describing procedures acceptable to the NRC staff for the prevention of criticality accidents in the storage and processing of aqueous solutions of fis sile materials in steel-pipe intersections.
This regulatory guide provides guidance for complying with this portion of the Commission's regu-lations by describing procedures acceptable to the NRC staff for the prevention of criticality accidents in the storage and processing of aqueous solutions of fis-sile materials in steel-pipe intersections.


Any information collection activities mentioned in this regulatory guide are contained as requirements in 10 CFR Part 70, which provides the regulatory ba sis for this guide. The information collection require ments in 10 CFR Part 70 have been cleared under OMB Clearance No. 3150-0009.
Any information collection activities mentioned in this regulatory guide are contained as requirements in 10 CFR Part 70, which provides the regulatory ba-sis for this guide. The information collection require-ments in 10 CFR Part 70 have been cleared under OMB Clearance No. 3150-0009.


==B. DISCUSSION==
==B. DISCUSSION==
ANSI/ANS-8.9-1987, "Nuclear Criticality Safety Criteria for Steel-Pipe Intersections Containing Aque ous Solutions of Fissile Material,"'  
ANSI/ANS-8.9-1987, "Nuclear Criticality Safety Criteria for Steel-Pipe Intersections Containing Aque-ous Solutions of Fissile Material,"'  
was prepared by Subcommittee  
was prepared by Subcommittee  
8, Fissionable Materials Outside Reac tors, of the Standards Committee of the American Nuclear Society. ANSI/ANS 8.9-1987 was approved 'Copies may be obtained from the American Nuclear Society, 555 N. Kensington Avenue, La Grange Park, IL 6052
8, Fissionable Materials Outside Reac-tors, of the Standards Committee of the American Nuclear Society. ANSI/ANS 8.9-1987 was approved'Copies may be obtained from the American Nuclear Society, 555 N. Kensington Avenue, La Grange Park, IL 60525.by the American National Standards Institute (ANSI)on April 3, 1987.ANSI/ANS-8.9-1987 provides specifications for pipe intersections containing homogeneous aqueous solutions of fissile materials.


===5. USNRC REGULATORY ===
All dimensions are inter-preted as nominal values of schedule 10 or heavier standard steel pipe. Only single columns with inter-sections are considered in the standard.
GUIDES Regulatory Guides are Issued to describe and make available to the pub lic methods acceptable to the NRC staff of implementing specific parts of the Commission's regulations, to delineate techniques used by the staff In evaluating specific problems or postulated accidents, or to pro vide guidance to applicants.


Regulatory Guides are not substitutes for regulations, and compliance with them is not required.
For multiple columns or columns in the vicinity of other fissile ma-terials and the influence of environmental factors, the standard requires that experimental data or validated computational techniques be used to determine the safe configuration.


Methods and solutions different from those set out in the guides will be acceptable if they provide a basis for the findings requisite to the issuance or continu ance of a permit or license by the Commission.
Criteria and data provided are based on criticality experiments and validated calcu-lations that are generally applicable to homogeneous aqueous solutions of fissile materials.


This guide was issued after consideration of comments received from the public. Comments and suggestions for Improvements in these guides are encouraged at all times, and guides will be revised, as ap propriate, to accommodate comments and to reflect new Information or experience, Written comments may be submitted to the Regulatory Publications Branch, DFIPS, ARM, U.S. Nuclear Regulatory Commission, Washing ton, DC 20555.by the American National Standards Institute (ANSI) on April 3, 1987.  ANSI/ANS-8.9-1987 provides specifications for pipe intersections containing homogeneous aqueous solutions of fissile materials.
Specific infor-mation is included on fissile solutions containing ura-nium enriched in the 2 35U or 2 3 3 U isotope or pluto-nium and on uranium solutions having a 2 3U content not exceeding
5 weight-percent of the total uranium.C. REGULATORY
POSITION The nuclear criticality safety practices and guid-ance for calculating safe steel-pipe intersections for aqueous solutions of fissile materials contained in ANSI/ANS-8.9-1987 provide procedures generally acceptable to the NRC staff for the prevention of criticality accidents in the storage and processing of aqueous solutions of fissile materials.


All dimensions are inter preted as nominal values of schedule 10 or heavier standard steel pipe. Only single columns with inter sections are considered in the standard.
USNRC REGUIATORY
GUIDES Regulatory Guides are Issued to describe and make available to the pub-lic methods acceptable to the NRC staff of implementing specific parts of the Commission's regulations, to delineate techniques used by the staff in evaluating specific problems or postulated accidents, or to pro-vide guidance to applicants.


For multiple columns or columns in the vicinity of other fissile ma terials and the influence of environmental factors, the standard requires that experimental data or validated computational techniques be used to determine the safe configuration.
Regulatory Guides are not substitutes for regulations, and compliance with them is not required.
 
Criteria and data provided are based on criticality experiments and validated calcu lations that are generally applicable to homogeneous aqueous solutions of fissile materials.


Specific infor mation is included on fissile solutions containing ura nium enriched in the 2 35U or 233U isotope or pluto nium and on uranium solutions having a mU content not exceeding
Methods and solutions different from those set out in the guides will be acceptable if they provide a basis for the findings requisite to the Issuance or continu-ance of a permit or license by the Commission.
5 weight-percent of the total uranium.


C. REGULATORY
This guide was issued after consideration of comments received from the public. Comments and suggestions for improvements in these guides are encouraged at all times, and guides will be revised, as ap-propriate, to accommodate comments and to reflect new information or experience.
POSITION The nuclear criticality safety practices and guid ance for calculating safe steel-pipe intersections for aqueous solutions of fissile materials contained in ANSI/ANS-8.9-1987 provide procedures generally acceptable to the NRC staff for the prevention of criticality accidents in the storage and processing of aqueous solutions of fissile materials.


The guides are Issued in the following ten broad divisions:
Written comments may be submitted to the Regulatory Publications Branch, DFIPS, ARM, U.S. Nuclear Regulatory Commission, Washing-ton, DC 20555.The guides are Issued in the following ten broad divisions:
1. Power Reactors 2. Research and Test Reactors 3. Fuels and Materials Facilities  
1. Power Reactors 2. Research and Test Reactors 3. Fuels and Materials Facilities
4. Environmental and Siting 5. Materials and Plant Protection
4. Environmental and Siting 5. Materials and Plant Protection
6. Products  
6. Products  


===7. Transportation ===
===7. Transportation===
8. Occupational Health 9. Antitrust and Financial Review 10. General Copies of issued guides may be purchased from the Government Printing Office at the current GPO price. Information on current GPO prices may be obtained by contacting the Superintendent of Documents, U. S. Government Printing Office, Post Office Box 37082, Washington, DC 20013-7082, telephone  
8. Occupational Health 9. Antitrust and Financial Review 10. General Copies of issued guides may be purchased from the Government Printing Office at the current GPO price. Information on current GPO prices may be obtained by contacting the Superintendent of Documents, U.S.Government Printing Office, Post Office Box 37082, Washington, DC 20013-70B2, telephone  
(202)275-2060  
(202)275-2060  
or (202)275-2171.
or (202)275-2171.


Issued guides may also be purchased from the National Technical Infor mation Service on a standing order basis. Details on this service may be obtained by writing NTIS, 5285 Port Royal Road, Springfield, VA 22161.Revision 1 April 1989 DE
Issued guides may also be purchased from the National Technical Infor-mation Service on a standing order basis. Details on this service may be obtained by writing NTIS, 5285 Port Royal Road, Springfield, VA 22161.


==D. IMPLEMENTATION==
==D. IMPLEMENTATION==
The purpose of this section is to provide informa tion to applicants regarding the NRC staff's plan for using this regulatory guide. These methods reflect the latest general NRC ap proach to criticality safety in the storage and process ing of aqueous solutions of fissile materials in steel-pipe intersections.
The purpose of this section is to provide informa-tion to applicants regarding the NRC staff's plan for using this regulatory guide.These methods reflect the latest general NRC ap-proach to criticality safety in the storage and process-ing of aqueous solutions of fissile materials in steel-pipe intersections.


Therefore, except in those cases in which the applicant proposes an acceptable alterna tive method for complying with the specified portions of the Commission's regulations, the method de scribed here will be used in the evaluation of submit-,'
Therefore, except in those cases in which the applicant proposes an acceptable alterna-tive method for complying with the specified portions of the Commission's regulations, the method de-scribed here will be used in the evaluation of submit-tals for license applications submitted pursuant to 10 CFR Part 70.3.45-2 VALUE/IMPACT  
tals for license applications submitted pursuant to 10 CFR Part 70.3.45-2 VALUE/IMPACT  
STATEMENT A draft value/impact statement was published with the proposed Revision 1 to Regulatory Guide 3.45 (Task CE 802-5) when the draft guide was pub-lished for public comment in May 1988. No changes were necessary, so a separate value/impact statement for the final guide has not been prepared.
STATEMENT A draft value/impact statement was published  
_ with the proposed Revision 1 to Regulatory Guide 3.45 (Task CE 802-5) when the draft guide was pub lished for public comment in May 1988. No changes were necessary, so a separate value/impact statement for the final guide has not been prepared.


A copy of the draft value/impact statement is available for in spection and copying for a fee at the Commission's Public Document Room at 2120 L Street NW., Wash ington, DC, under Task CE 802-5.3.45-3 7 UNITED STATES NUCLEAR REGULATORY  
A copy of the draft value/impact statement is available for in-spection and copying for a fee at the Commission's Public Document Room at 2120 L Street NW., Wash-ington, DC, under Task CE 802-5.3.45-3 UNITED STATES NUCLEAR REGULATORY  
COMMISSION  
COMMISSION
WASHINGTON, D.C. 20555 OFFICIAL BUSINESS PENALTY FOR PRIVATE USE, $300 FIRST CLASS MAIL POSTAGE ft FEES PAID USNRC PERMIT No. G-67}}
WASHINGTON, D.C. 20555 FIRST CLASS MAIL POSTAGE b FEES PAID USNRC PERMIT No. G,67 OFFICIAL BUSINESS PENALTY FOR PRIVATE USE, $300}}


{{RG-Nav}}
{{RG-Nav}}

Revision as of 02:13, 18 September 2018

Nuclear Criticality Safety for Steel-Pipe Intersections Containing Aqueous Solutions of Fissile Materials
ML122430316
Person / Time
Issue date: 04/30/1989
From:
Office of Nuclear Regulatory Research
To:
References
CE 802-5 RG 3.45, Rev. 1
Download: ML122430316 (4)
v • d • e


Z ~ .- r"~ , %- (U.S. NUCLEAR REGULATORY

COMMISSION

REGULATORY

Revision 1 April 1989 GUIDE OFFICE OF NUCLEAR REGULATORY

RESEARCH REGULATORY

GUIDE 3.45 (Task CE 802-5)NUCLEAR CRITICALITY

SAFETY FOR STEEL-PIPE

INTERSECTIONS

CONTAINING

AQUEOUS SOLUTIONS

OF FISSILE MATERIALS

A. INTRODUCTION

Section 70.22, "Contents of Applications," of 10 CFR Part 70, "Domestic Licensing of Special Nu-clear Material," requires that applications for a spe-cific license to own, acquire, deliver, receive, possess, use, or transfer special nuclear material contain pro-posed procedures to avoid accidental conditions of criticality.

This regulatory guide provides guidance for complying with this portion of the Commission's regu-lations by describing procedures acceptable to the NRC staff for the prevention of criticality accidents in the storage and processing of aqueous solutions of fis-sile materials in steel-pipe intersections.

Any information collection activities mentioned in this regulatory guide are contained as requirements in 10 CFR Part 70, which provides the regulatory ba-sis for this guide. The information collection require-ments in 10 CFR Part 70 have been cleared under OMB Clearance No. 3150-0009.

B. DISCUSSION

ANSI/ANS-8.9-1987, "Nuclear Criticality Safety Criteria for Steel-Pipe Intersections Containing Aque-ous Solutions of Fissile Material,"'

was prepared by Subcommittee

8, Fissionable Materials Outside Reac-tors, of the Standards Committee of the American Nuclear Society. ANSI/ANS 8.9-1987 was approved'Copies may be obtained from the American Nuclear Society, 555 N. Kensington Avenue, La Grange Park, IL 60525.by the American National Standards Institute (ANSI)on April 3, 1987.ANSI/ANS-8.9-1987 provides specifications for pipe intersections containing homogeneous aqueous solutions of fissile materials.

All dimensions are inter-preted as nominal values of schedule 10 or heavier standard steel pipe. Only single columns with inter-sections are considered in the standard.

For multiple columns or columns in the vicinity of other fissile ma-terials and the influence of environmental factors, the standard requires that experimental data or validated computational techniques be used to determine the safe configuration.

Criteria and data provided are based on criticality experiments and validated calcu-lations that are generally applicable to homogeneous aqueous solutions of fissile materials.

Specific infor-mation is included on fissile solutions containing ura-nium enriched in the 2 35U or 2 3 3 U isotope or pluto-nium and on uranium solutions having a 2 3U content not exceeding

5 weight-percent of the total uranium.C. REGULATORY

POSITION The nuclear criticality safety practices and guid-ance for calculating safe steel-pipe intersections for aqueous solutions of fissile materials contained in ANSI/ANS-8.9-1987 provide procedures generally acceptable to the NRC staff for the prevention of criticality accidents in the storage and processing of aqueous solutions of fissile materials.

USNRC REGUIATORY

GUIDES Regulatory Guides are Issued to describe and make available to the pub-lic methods acceptable to the NRC staff of implementing specific parts of the Commission's regulations, to delineate techniques used by the staff in evaluating specific problems or postulated accidents, or to pro-vide guidance to applicants.

Regulatory Guides are not substitutes for regulations, and compliance with them is not required.

Methods and solutions different from those set out in the guides will be acceptable if they provide a basis for the findings requisite to the Issuance or continu-ance of a permit or license by the Commission.

This guide was issued after consideration of comments received from the public. Comments and suggestions for improvements in these guides are encouraged at all times, and guides will be revised, as ap-propriate, to accommodate comments and to reflect new information or experience.

Written comments may be submitted to the Regulatory Publications Branch, DFIPS, ARM, U.S. Nuclear Regulatory Commission, Washing-ton, DC 20555.The guides are Issued in the following ten broad divisions:

1. Power Reactors 2. Research and Test Reactors 3. Fuels and Materials Facilities

4. Environmental and Siting 5. Materials and Plant Protection

6. Products

7. Transportation

8. Occupational Health 9. Antitrust and Financial Review 10. General Copies of issued guides may be purchased from the Government Printing Office at the current GPO price. Information on current GPO prices may be obtained by contacting the Superintendent of Documents, U.S.Government Printing Office, Post Office Box 37082, Washington, DC 20013-70B2, telephone

(202)275-2060

or (202)275-2171.

Issued guides may also be purchased from the National Technical Infor-mation Service on a standing order basis. Details on this service may be obtained by writing NTIS, 5285 Port Royal Road, Springfield, VA 22161.

D. IMPLEMENTATION

The purpose of this section is to provide informa-tion to applicants regarding the NRC staff's plan for using this regulatory guide.These methods reflect the latest general NRC ap-proach to criticality safety in the storage and process-ing of aqueous solutions of fissile materials in steel-pipe intersections.

Therefore, except in those cases in which the applicant proposes an acceptable alterna-tive method for complying with the specified portions of the Commission's regulations, the method de-scribed here will be used in the evaluation of submit-tals for license applications submitted pursuant to 10 CFR Part 70.3.45-2 VALUE/IMPACT

STATEMENT A draft value/impact statement was published with the proposed Revision 1 to Regulatory Guide 3.45 (Task CE 802-5) when the draft guide was pub-lished for public comment in May 1988. No changes were necessary, so a separate value/impact statement for the final guide has not been prepared.

A copy of the draft value/impact statement is available for in-spection and copying for a fee at the Commission's Public Document Room at 2120 L Street NW., Wash-ington, DC, under Task CE 802-5.3.45-3 UNITED STATES NUCLEAR REGULATORY

COMMISSION

WASHINGTON, D.C. 20555 FIRST CLASS MAIL POSTAGE b FEES PAID USNRC PERMIT No. G,67 OFFICIAL BUSINESS PENALTY FOR PRIVATE USE, $300


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