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Federal Regulations, Codes, &
Standards Users Group © |
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ASME Section III Users Group Bulletin Board |
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Welcome to the ASME Section III Users Group Bulletin Board for the United States Nuclear Power Federal Regulations, Codes, & Standards Users Group. This bulletin board is for the use and benefit of all individuals and organizations that wish to post specific questions and replies that are relevant to the implementation and use of ASME Section III. Questions and replies are posted below as they are received, and only identify the subject, date, and signature as provided, if any, to maintain individual privacy. Advertising and irrelevant material will not be posted. Please limit your postings to 100 words or less and do not include attachments. Send your questions and replies to bulletinboard@tech-tel.com. To search this bulletin board for key words and phrases, click on "Edit" on your web browser tool bar and then click "Find ... ". In the resulting dialog box, insert the desired key word or phrase and then click "Find ... ", repeatedly as necessary to locate multiple entries as you proceed through the page. |
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Note: All information provided on this bulletin board is provided "as is", without warranty of any kind, as stipulated in the Disclaimer and Conditions of Use for this web site. |
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Bulletin Board Postings: |
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Date: Wednesday, 27 August 2008 Subject: New Construction Per 10 CFR Part 52 Dear
Group: Which
ASME BPVC edition / addenda will apply to new nuclear plants constructed in
accordance with 10 CFR Part 52? Is the
applicability determined by the referenced reactor's standard design
certification approval date, the combined license application date, the
combined license approval date, or some construction milestone date? Thank
you, Eric |
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Date: Friday, 29 August 2008 Subject: New Construction Per 10 CFR Part 52 Dear Eric: The applicable Code Edition and Addenda for each component
will be the one listed in the design certification document. These dates may be modified by the By the way, this approach
violates NCA-1140, but we are currently processing a revision and a Case to
align NCA-1140 with the above approach. Rick
Swayne |
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Date: Thursday, 26 June 2008 Subject: ASME Section III Inquiries Dear
Group: Can you please tell me where to send a technical
inquiry for ASME Section III? Pete |
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Date: Sunday, 29 June 2008 Subject: ASME Section III Inquiries Dear
Pete: You should send the technical inquiry to
the Secretary of the ASME Section III Committee as indicated on this page http://cstools.asme.org/csconnect/CommitteePages.cfm?Committee=N20070000. |
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Date: Tuesday, 6 March 2007 Subject: NRC Enforcement Positions for ASME Codes Dear
Group: I understand that the ASME has been working
with the NRC to help clarify the NRC’s endorsement positions for Nonmandatory
Appendices, references in Codes to other Codes, certain Subsections in
Section III and Code Cases related to certain Codes. Can you tell me what the status is? Thanks, George |
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Date: Sunday, 11 March 2007 Subject: NRC Enforcement Positions for ASME Codes Dear
George: On January 11.2007, the NRC presented their
draft positions as follows: 1. All Nonmandatory Appendices are considered
approved for use for the currently endorsed ASME Code Editions and Addenda of
Section III (Division I), Section XI (Division I) and the OM Code as listed
in 10 CFR 55a. 2. All references in these Codes to supporting
Codes such as Section II, Section V and Section IX are implicitly approved
for use, up to the latest published versions available. 3. The current endorsement of ASME Section III
(Division I) Subsections NE for containments, NF for supports and NG for core
support structures are implicitly approved for use, but are not mandatory. 4. Code Cases published for Sections II, V and
IX are also implicitly approved. The NRC is expected to
publish their final positions soon, but the publication media is unknown at
this time. |
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Date: Tue, 18
July 2006 Subject: Welding Certification and Qualification Dear
Group: Where can I find a discussion
on Welding Certification and Qualification?
Kim |
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Date: Sun, 30
July 2006 Subject: Welding Certification and Qualification Dear
Kim: Take a look at the American Welding Society (AWS) Bulletin
Board – BBS Grand Central under Welding Certification and Qualification,
as well as some of the other links on the Online Forums and Conferences
page. |
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Date: Tue, 3 January
2006 Subject: Summary of ASME Code Changes Dear
Group: Does anyone provide a summary
of ASME Code changes? Thanks, Pete |
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Date: Sun, 8 January 2006 Subject: Summary of ASME Code Changes Dear
Pete: Take a look at: http://cstools.asme.org/csconnect/public/index.cfm?SummaryOfChanges=yes
for the Boiler and Pressure Vessel Code 2005 Addenda. This is the beginning of a new service by
ASME. |
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Date: Mon, 14
March 2005 Subject: Historical
Section III Editions and Addenda Dear
Group: Where can I find an historical listing of all issued ASME
Section III Code editions and addenda? Regards…Gordon |
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Date: Wed, 23
March 2005 Subject: Historical
Section III Editions and Addenda Dear
Gordon: We are not aware of a public listing providing that
information. However, Reedy Engineering has all of those Editions and
Addenda. Gordon is welcome to drop by
our office and make a list of them. Or
he can pay us a modest fee to do that for him. He might also be able to get that
information from the Linda Hall Library in The Linda Hall Library can be reached on (800) 662-1545. |
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Date: Mon, 10
January 2005 Subject: Standard
Welding Procedure Specifications Dear
Group: I want to know whether ASME Section III, Division 1,
prohibits the use of a Standard Welding Procedure Specification (SWPS) in
ASME Section IX. Thank you, Song |
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Date: Wed, 12
January 2005 Subject: Standard
Welding Procedure Specifications Dear
Song: ASME Section
III does not prohibit or limit the use of ASME Section IX SWPSs.
Therefore, they may be used in Section III construction. |
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Date: Tue, 2
November 2004 Subject:
Component Support Load-Bearing and Non-Load-Bearing Members Dear Group: Do you know of
the existence of a Code Case (like N-62 for valves, or N-119 for pumps), or
some other industry recognized guideline document, which provides drawings
and/or lists of support components and their descriptions as load-bearing or
non-load-bearing members? This would be something in addition to, or other
than, the drawings and listings in ASME Section III, Subsection NF, and
definitions such as in NF-1215. If so, can you
please give me a hint as to where to find this document? Thanks, Richard |
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Date: Tue, 2
November 2004 Subject:
Component Support Load-Bearing and Non-Load-Bearing Members Dear Richard: I’m sorry
to say that we have never seen such a listing. So, I don’t know where you would
find such. Not to complicate matters, but it may be possible for a specific
support item to be load bearing in one design application and non-load
bearing in another. So it may be design specific. |
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Date: Tue, 25 May
2004 Subject: NRC
Approval of Latest ASME Section III, Section XI, and Dear Group: What
are the latest versions of the ASME Boiler and Pressure Vessel Codes to be
approved by the NRC for Sections III, XI, and |
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Date: Thur, 27
May 2004 Subject: NRC
Approval of Latest ASME Section III, Section XI, and Dear Alice: The
latest versions of the ASME Boiler and Pressure Vessel Codes to be approved by
the NRC for Sections III, XI, and OM will be the 2001 Edition through the
2003 Addenda, and per the May 2004 NRC Section XI Report, http://www.sectionxi.com/Meeting-Notes-and-Reports/NRC-Section-XI-Report(May-2004)W-Norris.html
on the Meeting Notes and Reports Page http://www.sectionxi.com/Meeting-Notes-and-Reports/Meeting-Notes-and-Reports.html,
they are to be indicated as approved in 10 CFR 50.55a in September 2004. |
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Date: Mon, 2
February 2004 Subject:
Documentation For Repair/Replacements Dear Group:
Sizewell B is performing a Class 2 repair/replacement on the Reactor Building
Spray System piping and supports. The original construction code is the 1983
Edition with the Winter 1985 Addenda of Section III and the current Section
XI Code is the 1989 Edition with the Winter 1990 Addenda. What are the
requirements regarding the Section III A-Forms, N-Forms, design
specification, revision of original forms, Section XI NIS-2 Form, etc.? Ron
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Date: Thur, 5
February 2004 Subject:
Documentation For Repair/Replacements Dear Ron: The short
answer is that any components, parts, or appurtenances to be N or NPT stamped
must be furnished in accordance with a Certified Design Specification and
supplied with the applicable Section III Code Data Reports. N-stamped components must be furnished with
a Certified Design Report, when that is required by Section III. The A-Forms are nonmandatory sample
statements. The N-Forms are mandatory. Revision of original Forms is not
required. See IWA-4300 in the 2003
Addenda for requirements for updating design documentation. An NIS-2 must be completed for all
Repair/Replacement Activities. Rick Swayne
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Date: Mon, 19
January 2004 Subject: Latest
NRC Concerns Regarding ASME Section III Dear Group: Where
can I find the latest NRC concerns regarding ASME Section III. Thanks, Ben
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Date: Sat, 24
January 2004 Subject: Latest
NRC Concerns Regarding ASME Section III Dear Ben: For the
latest NRC concerns regarding ASME Section III (proposed modifications and limitations),
take a look at the NRC Federal Register, Vol. 69, No. 4, dated Wednesday,
January 7, 2004, Pages 879 through 892.
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Date: Mon, 3
November 2003 Subject: ASME
Section III Standard and Code Dear Group: What
is it about the ASME Section III Standard that makes it a Code? William
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Date: Sun, 9
November 2003 Subject: ASME
Section III Standard and Code Dear William: The
ASME Section III Standard is a Code because the Standard has been adopted by one
or more governmental bodies and has the force of law.
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Date: Mon, 21
July 2003 Subject: Class 1
Ellipsoidal Head Design Dear Group:
Section III in ND-3133.4(c) of the 2001 Edition provides guidance for design of
Class 3 ellipsoidal heads. However, no such guidance is provided in NB-3133.4
for the design of Class 1 ellipsoidal heads. Does this mean
that Class 1 ellipsoidal heads are not permitted, or does this just mean that
there are no code requirements for Class 1 ellipsoidal heads? And if the
latter is true, how does one proceed to design a Class 1 ellipsoidal head?
Sincerely yours, A. Nikkhah
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Date: Wed, 23
July 2003 Subject: Class 1
Ellipsoidal Head Design Dear A. Anikkhah:
The formulas for Class 2 and 3 are taken from Section VIII, Division 1, and
are based on the maximum stress theory. For Class 1 and Section VIII,
Division 2, there are no simple formulas because the maximum shear stress
theory is used which complicates things a great deal. With the latter, you
must subtract the compressive stress from the tensile stress and this value
changes at each point. A Class 1 ellipsoidal head will require more thickness
than a Class 2 or 3 head, even with the higher allowable stresses of Class 1.
But, there is no easy formula. As they say, the Code is not a handbook! The bottom line
is, if you perform a complete stress analysis, using shear stress theory,
Class 1 allows an ellipsoidal head, or any head of any shape as long as the
correct stress theory is used! I didn't know of
any Class 1 ellipsoidal heads. Same for Div. 2. Hope this answers the
question. Roger Reedy
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Date: Tue, 8
April 2003 Subject: Nuclear
Vessel Classification Dear Group: Does the
1968 Edition of ASME Section III use different terminology for Nuclear Class
1, 2 and 3 vessels? Specifically, was Class 1 referred to as Class A? Matt
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Date: Thur, 10
April 2003 Subject: Nuclear
Vessel Classification Dear Matt:
Although not always, Quality Group A per 10 CFR 50 is usually recognized and
identified as Class 1. Quality Group B and Quality Group C per NRC Regulatory
Guide 1.26 is usually recognized and identified as Class 2 and 3
respectively.
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Date: Mon, 10
March 2003 Subject: ASME
Code Interpretations Dear Group: I
have copies of several ASME Section XI, Section III, and OM Code
Interpretations, but the copies have been retyped and don't indicate which
editions and/or addenda they apply to. How can I determine their applicability?
Thank you, Fernando
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Date: Thur, 13
March 2003 Subject: ASME
Code Interpretations Dear Fernando:
When ASME Section XI, Section III, and OM Code Interpretations are published
by ASME, the applicability is indicated in the subject line of each
interpretation. Since your copies have been retyped and don't indicate which
editions and/or addenda they apply to, you will have to obtain the original
versions so that each applicability can be determined.
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Date: Wed, 2
October 2002 Subject: ASME
Code Case Applicability Dear Group: I
have copies of many ASME Code Cases but it is not clear how you determine
which code editions and addenda they are applicable to. Are code cases
applicable to all editions and addenda of the code? Kurt
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Date: Sat, 5
October 2002 Subject: ASME
Code Case Applicability Dear Kurt: No,
code cases are only applicable to those editions and addenda of the code as
either indicated in the code case or as indicated in the "Applicability
Index" located in the front of the official volume of ASME Code Cases.
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Date: Mon, 17
June 2002 Subject: ASME
Section III Public Review and Comment Process Dear Group: Our
organization is unable to attend ASME Section III Code Committee meetings, but
we would like to participate in the public review and comment process. Can
you please tell me how to do that? Bob
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Date: Thur, 20
June 2002 Subject: ASME
Section III Public Review and Comment Process Dear Bob: You can
participate in the ASME Section III public review and comment process
electronically. If you go to the Libraries and Reference Sources page under
"Reference Links" you will find the link your looking for entitled
"ASME Codes and Standards - Public Review and Comment".
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Date: Wed, 6
March 2002 Subject: NRC
Approval and Disapproval of ASME Section III Code Cases Dear Group: I
understand the NRC has issued new draft regulatory guides proposing the
approval and disapproval of ASME Section III code cases. Can you please
direct me to where I may find them? Thank you, Cindy
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Date: Fri, 8
March 2002 Subject: NRC
Approval and Disapproval of ASME Section III Code Cases Dear Cindy: The new
NRC draft regulatory guides proposing the approval and disapproval of ASME
Section III code cases can be found as follows. Go to the Libraries and
Reference Sources
page and then scroll down under "Reference Links" and click on NRC Draft NUREGS
and Draft Regulatory Guides. Click on "Rulemaking Text and Other Documents" and
then scroll down to the bottom of the list to file 123-0143.pdf entitled
"Draft Regulatory Guide DG-1090 - Design, Fabrication, and Materials
Code Case Acceptability, ASME Section III. Also see file 123-0145.pdf
entitled "Draft Regulatory Guide DG-1112 - ASME Code Cases Not Approved
for Use".
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Date: Mon, 3
December 2001 Subject: ASME
Section III Design Requirements Dear Group: I do
not have access to a copy of ASME Section III, therefore can you please tell
me what subsections contain the design requirements for Class 1, 2, and 3
Components? Thanks, Brian
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Date: Mon, 3
December 2001 Subject: ASME
Section III Design Requirements Dear Brian: The
design requirements for Class 1, 2, and 3 Components are contained in
Subsections NB, NC, and ND respectively.
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Date: Tue, 16 October
2001 Subject: ASME
Section III and XI Inquiries Dear Group: Where
can I find guidance on the web for submitting inquiries to ASME Section III
and Section XI? Thank you, Fred
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Date: Sun, 21
October 2001 Subject: ASME Section
III and XI Inquiries Dear Fred: Take a look at the ASME Guide entitled "Guide to Submittal of Technical Inquiries to an ASME Committee" located at http://www.asme.org/cns/departments/PTCS/Public/InquirySubmittal.html.
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Date: Thur, 16
August 2001 Subject: USNRC
Limitations and Modifications of ASME Section III Dear Group: How
can I determine what the USNRC Limitations and Modifications are for
implementing ASME Section III in the
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Date: Tue, 21
August 2001 Subject: USNRC
Limitations and Modifications of ASME Section III Dear Liu: The USNRC
Limitations and Modifications for implementing ASME Section III in the United
States are published in the United States Code of Federal Regulations 10 CFR 50.55a
in Paragraphs (b)(1)(i)
through (b)(1)(v).
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Date: Sat, 9 June
2001 Subject:
Alloy-600 Weld Cracking Problems Dear Group: Where
can I find information on the Alloy-600 weld cracking problems recently
identified at the Summer and
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Date: Tue, 12
June 2001 Subject:
Alloy-600 Weld Cracking Problems Dear Dave: Take a
look at the U.S. Nuclear Regulatory Commission web site, specifically at http://www.nrc.gov/NRC/REACTOR/ALLOY-600/index.html.
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Date: Fri, 30
March 2001 Subject: Use of
ASME Section III with ASME Section II Dear Group: When
applying the 1992 Edition of ASME Section III, is it permissible to use the 1992
Edition of ASME Section II? Steve Roberts
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Date: Sun, 1
April 2001 Subject: Use of
ASME Section III with ASME Section II Dear Steve: No.
When applying the 1992 Edition of ASME Section III, it is required by the NRC
in 10 CFR 50.55a(b)(1)(i) to use the 1992 Edition with the 1992 Addenda of
ASME Section II.
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Date: Thur, 4
January 2001 Subject:
Sensitized Stainless Steel Dear Group: Where
does the United States Nuclear Regulatory Commission discuss the use of sensitized
stainless steel? Raul
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Date: Sun, 7
January 2001 Subject:
Sensitized Stainless Steel Dear Raul: The
United States Nuclear Regulatory Commission (NRC) discusses the use of
sensitized stainless steel in the NRC Regulatory Guide 1.44 entitled
"Control of the Use of Sensitized Stainless Steel". You may also
want to do a search of the "NRC Generic Communications" that are
linked on the Libraries and
Reference Sources
page under "Reference Links".
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Date: Thur, 16
March 2000 Subject: Seismic
Design Classification Dear Group: Can
someone please tell me what standard is generally followed in the
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Date: Sun, 19
March 2000 Subject: Seismic
Design Classification Dear Dajun: Most
nuclear power plants in the
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Date: Wed, 10
November 1999 Subject: NRC
Approval of 1996 Addenda for ASME Section III Dear Group: I
understand that the NRC has placed limitations on their approval of the 1996
Addenda of ASME Section III. Is this true, and if so where is this discussed?
Shawn
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Date: Fri, 12
November 1999 Subject: NRC
Approval of 1996 Addenda for ASME Section III Dear Shawn: The
NRC did place five limitations and modifications on the implementation of the
1996 Addenda of ASME Section III. You will find this discussed in the
September 22, 1999 Federal Register as referenced below in the response dated
Wed, 29 September 1999.
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Date: Mon, 27
September 1999 Subject: NRC
Approval of 1996 Addenda for ASME Section III, Section XI, and Operations and
Maintenance Code Dear Group: Where
can I find a copy of the NRC final rule for their acceptance of the 1996
Addenda of the ASME Boiler and Pressure Vessel Code, for Section III, Section
XI, and the Operations and Maintenance Code? Charlie
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Date: Wed, 29
September 1999 Subject: NRC
Approval of 1996 Addenda for ASME Section III, Section XI, and Operations and
Maintenance Code Dear Charlie: The
approval was issued in the Federal Register on Wednesday, September 22, 1999.
The document is available from the "Federal Register: 1999 Issues"
link provided on this site on the Libraries and Reference Sources page, under
"Reference Links". Scroll down the Federal Register page to Nuclear
Regulatory Commission, RULES, [FR Doc.99-24256]. Dennis
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Date: Thur, 14
Jan 1999 Subject:
Classification of Containment Piping Penetration Flued Heads Hello Group: I would
appreciate a little help from anyone. What guidance is available for
classifying the flued head with its integral attachment to piping at
containment penetrations? Should the flued head be considered a component
support, recognizing that the pipe stress analyst may have treated it as an
anchor point in the analysis, or should it be considered an integral part of
the piping that performs a containment boundary function? Any response will
be helpful. Thank you. Jose
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Date: Tue, 2 Feb
1999 Subject:
Classification of Containment Piping Penetration Flued Heads Dear Jose: The
1989 Edition of ASME Section III, Rules for Class 1 Components in Paragraph
NB-1132.2(a), entitled "Jurisdictional Boundary" states
"Attachments cast or forged with the component and weld buildup on the
component surface shall be considered part of the component." Since
piping systems are considered to be components, an argument can be made that
the flued head is part of the piping system, and therefore is not a component
support. Further classification guidance is provided in ASME Section III for
containment penetrations in Figure NE-1120-1 entitled "Typical
Containment Penetrations". Hope this helps. Dennis
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Date: Tue, 27 Oct
1999 Subject:
Classification of Service Water Systems Dear Group: Can
someone please point me to specific reference sources that discuss the
classification of Service Water Systems in Nuclear Power Plants? Thanks in
advance. Jeff
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Date: Sat, 7 Nov
1998 Subject: Classification
of Service Water Systems Dear Jeff: You
will find plenty to read on classifying Service Water Systems and Class 3
Essential Systems in NRC Generic Letter 89-13 (including Supplement 1), NRC
Information Notice 94-03, NRC IE Manual/Instruction -2515/118, and NUREG-0800
Sections 9.2.1, 9.2.2, 9.2.6, 9.3.4, 9.5.4, 9.5.8, 10.4.9. Don
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Date: Mon, 14 Sep
1998 Subject:
Classification of Dear User Group:
What guidance is available for the classification of diesel generator fuel
oil systems in the
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Date: Thur, 17
Sep 1998 Subject:
Classification of Dear Hin: Take a
look at NRC Regulatory Guide 1.137 and NRC Standard Review Plan, Sections
9.5.4 and 9.5.8. Jeromy
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Date: Fri, 11 Sep
1998 Subject:
Classification of Dear User Group:
What federal regulations are generally followed in the
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Date: Mon, 14 Sep
1998 Subject:
Classification of Dear Hin: The
classification of the reactor coolant pressure boundary is generally Class 1
(Quality Group A) in accordance with the Code of Federal Regulations
10CFR50.2. The classification of the safety related systems is generally
Class 2 and 3 (Quality Group B and C) in accordance with NRC Regulatory Guide
1.26. Also see the NRC Standard Review Plan, NUREG-0800, Section 3.2.2,
"System Quality Group Classification". Richard
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Date: Tue, 8 Sep
1998 Subject: Design
Criteria for Future Inspections Dear User Group:
What design criteria is mandated in the
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Date: Thur, 10
Sep 1998 Subject: Design
Criteria for Future Inspections Dear Ho: The
basic criteria is contained in 10CFR50, Appendix A, entitled "General
Design Criteria". See Criterion No. 32, 36, 37, 39, 40, 42, 43, 45, 46,
54, and 55 for guidance on various systems and equipment.
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