1、AN AMERICAN NATIONAL STANDARDASME AG-1a2004ADDENDAtoASME AG-12003CODE ON NUCLEAR AIR AND GAS TREATMENTTHE AMERICAN SOCIETY OF MECHANICAL ENGINEERSThree Park Avenue T New York, NY 10016hi i l i 1$ #1 1Copyright ASME International Provided by IHS under license with ASME Not for ResaleNo reproduction o
2、r networking permitted without license from IHS-,-,-Date of Issuance: September 30, 2005ASME is the registered trademark of The American Society of Mechanical Engineers.This code or standard was developed under procedures accredited as meeting the criteria for American NationalStandards. The Standar
3、ds Committee that approved the code or standard was balanced to assure that individuals fromcompetent and concerned interests have had an opportunity to participate. The proposed code or standard was madeavailable for public review and comment that provides an opportunity for additional public input
4、 from industry,academia, regulatory agencies, and the public-at-large.ASME does not “approve,” “rate,” or “endorse” any item, construction, proprietary device, or activity.ASME does not take any position with respect to the validity of any patent rights asserted in connection with anyitems mentioned
5、 in this document, and does not undertake to insure anyone utilizing a standard against liability forinfringement of any applicable letters patent, nor assumes any such liability. Users of a code or standard are expresslyadvised that determination of the validity of any such patent rights, and the r
6、isk of infringement of such rights, is entirelytheir own responsibility.Participation by federal agency representative(s) or person(s) affiliated with industry is not to be interpreted asgovernment or industry endorsement of this code or standard.ASME accepts responsibility for only those interpreta
7、tions of this document issued in accordance with the establishedASME procedures and policies, which precludes the issuance of interpretations by individuals.No part of this document may be reproduced in any form,in an electronic retrieval system or otherwise,without the prior written permission of t
8、he publisher.The American Society of Mechanical EngineersThree Park Avenue, New York, NY 10016-5990Copyright 2005 byTHE AMERICAN SOCIETY OF MECHANICAL ENGINEERSAll rights reservedPrinted in U.S.A.Copyright ASME International Provided by IHS under license with ASME Not for ResaleNo reproduction or ne
9、tworking permitted without license from IHS-,-,-ASME AG-1a2004Following approval by the ASME Committee on Nuclear Air and Gas Treatment (CONAGT), and afterpublic review, this ASME AG-1a2004 was approved by the American National Standards Institute onMay 12, 2004.Addenda to the 2003 edition of ASME A
10、G-1 are issued in the form of replacement pages. Revisions,additions, and deletions are incorporated directly into the affected pages. It is advisable, however, that thispage, the Addenda title and copyright pages, and all replaced pages be retained for reference.SUMMARY OF CHANGESThis is the first
11、Addenda to be published to ASME AG-1-2003.Replace or insert the pages listed. Changes listed below are identified by a margin note, (a), placed nextto the affected area. The pages not listed are the reverse sides of the listed pages and contain no changes.Page Location Changevixii Committee Roster U
12、pdated to reflect Addenda71, 72 AA-D-2210 Equations (2a), (3), (4), and (5) corrected by errata78, 79 AA-D-3340 (1) Equations (36) and (37) corrected by errata(2) New Eq. (38) addedAA-D-3350 (1) Equation (38) redesignated as Eq. (39)(2) Equation (39) corrected by errata and redesignatedas Eq. (40)(3
13、) Equations (40a) and (40b) redesignated as Eqs. (41a)and (41b), respectivelyAA-D-3370 Equations (41a) and (41b) redesignated as Eqs. (42a) and(42b), respectivelyAA-D-3400 (1) Equations (42a), (42b), and (42c) redesignated asEqs. (43a), (43b), and (43c), respectively(2) Equation (42d) corrected by e
14、rrata and redesignatedas Eq. (43d)246 RA-6210 Revised247 RA-7100(a) RevisedRA-7200 RevisedRA-7300 RevisedRA-7400 RevisedRA-7500 Second paragraph revised(c)hi i l i 1$ 05 #13 ddCopyright ASME International Provided by IHS under license with ASME Not for ResaleNo reproduction or networking permitted w
15、ithout license from IHS-,-,-Page Location Change265, 266 RA-I-1000 Second paragraph added338350 Section FB Revised in its entirety by errataNOTE: Interpretations for ASME AG-1a-2004 follow the last page of this Addenda.(d)hi i l i 1$ 05 #14Copyright ASME International Provided by IHS under license w
16、ith ASME Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-FOREWORDIn 1971, what is now the Committee on NuclearAir and Gas Treatment was organized as ANSI N45.8to develop standards for high reliability air cleaningequipment for nuclear facilities and corresponding t
17、eststo confirm performance of the equipment. Two stan-dards, N509 and N510, were published in 1975 and1976 and updated in 1980 and 1989.In 1976, under the accredited organization rules, theCommittee was reorganized as the ASME Committeeon Nuclear Air and Gas Treatment. The scope ofresponsibility was
18、 broadened to include the developmentof codes and standards for design, fabrication, inspec-tion, and testing of air cleaning and conditioning compo-nents and appurtenances, as well as air cleaning compo-nents used in engineering safety systems in nuclearfacilities. The current assignment is to prod
19、uce codedocuments rather than standards.Although this Code is written for nuclear power andnuclear fuel cycle facilities, the design requirements ofthese documents may be referenced for the design,fabrication, inspection, and testing of ventilation aircleaning and air conditioning equipment for othe
20、r typesof facilities. The user, however, is cautioned to carefullyvhi i l i 1$ #5 ddreview these Code requirements for applicability tospecific applications other than nuclear power and nu-clear fuel cycle facilities.The user of the Code will note that metric equivalentsof U.S. customary units appea
21、r throughout this issueof the Code. The values stated in U.S. customary unitsare to be regarded as the standard.Membership on the committee, subcommittees, andsubgroups includes nuclear steam supply system suppli-ers, operating owners, architect/engineers, members ofthe Nuclear Regulatory Commission
22、, various manufac-turers, and individuals with general interest. Only thoseindividuals with demonstrated abilities in the specificareas involved are solicited as members. The balanceof interest committee members is closely watched toensure that all interests are represented.The first Edition of this
23、 Code was approved by theAmerican National Standards Institute on April 30,1985, and issued on February 28, 1986. The secondEdition was approved by ANSI on March 18, 1988.This sixth Edition was approved by ANSI on April10, 2003.(03)Copyright ASME International Provided by IHS under license with ASME
24、 Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-(a) ASME COMMITTEE ON NUCLEAR AIR ANDGAS TREATMENT(The following is the roster of the Committee at the time of approval of this Code.)MAIN COMMITTEER. D. Porco, ChairM. R. Hargan, Vice ChairT. J. Vogan, Vice ChairO.
25、Martinez, SecretaryE. M. Banks, Nucon International, Inc.R. R. Bellamy, U.S. Nuclear Regulatory CommissionJ. R. Edwards, Flanders/CSCM. W. First, Harvard School of Public HealthM. J. Fox, Engineered Environments, Inc.C. E. Graves, NUCON International, Inc.J. J. Hayes, Jr., U.S. Nuclear Regulatory Co
26、mmissionJ. R. Kriskovich, Vista EngineeringM. C. Patel, TXU ElectricM. E. Pest, APSG. S. Petersen, Washington Group International, Inc.R. D. Raheja, Sargent wherefap the applied compressive stress, ksifpp the applied membrane stress due to pressure, ksifbx,yp the applied bending stress, ksiValues fo
27、r Cmx,ymay be obtained from the AISI specifi-cation.Fex1p12 H92662E23 (KL/rx)2(41a)Fey1p12 H92662E23(KL/ry)2(41b)AA-D-3360 STRESSES AT DUCT OPENINGSStress intensification and local stresses due to thepresence of openings at duct walls for equipment instal-lation, shall be evaluated to permit proper
28、design ofductwork. Local reinforcing of the duct plate in thevicinity of the opening may be required.AA-D-3370 COMBINED BENDING AND SHEARSTRESSES IN WEBSFor unreinforced beam webs subjected to both bend-ing and shear stresses, members shall be proportionedto meet the following requirements see Artic
29、le AA-D-5000 (La Boube and Yu 1978):H20898fbwH9268cH208992+H20898fvH9268vH208992 1.0 (42a)For beam webs with transverse stiffeners satisfyingthe requirements of the AISI specification, membersshall be proportioned to meet the following requirement:0.6H20898fbwH9268cH20899+fvH9268v 1.3 (42b)when fbw/
30、H9268c 0.5 and fv/H9268v 0.7whereH9268c, H9268vp(defined previously)fbwpapplied web bending stress, ksifvpapplied web shear stress, ksi79hi i l i 1$125 #79 ddAA-D-3400 ALLOWABLE DESIGNSTRESSES SERVICELEVEL B, C, OR DMembers and assemblies subject to stresses producedby Service Level B, C, or D load
31、combinations shownin Table SA-4212, may be proportioned for unit stresses1.3 (Service Level B) or 1.6 (Service Levels C or D)times those specified in AA-D-3310 through AA-D-3340 for Service Level A load combinations. However,the increased stress allowables shall not exceed thefollowing limits.Axiall
32、y loaded compression members:H9268a1(max.) p 0.90H9268y(43a)Basic design stress:H9268c(max.) p 0.9H9268y(43b)Local plate bending:H9268 (max.) p 1.35 H9268y(43c)Members subjected to shear:H9268 (max.) p 0.90H9268y/3 (43d)AA-D-3500 STIFFENERSAA-D-3510 STIFFENER DESIGNDuct stiffeners are generally equa
33、l leg-angle shapeswelded to the duct. Duct stiffeners shall be designedfor loads resulting from duct internal pressure and ductplate local seismic excitation based on the tributaryareas (Fig. AA-D-3510), as well as stiffener self-weightexcitation and loads from equipment mounted directlyon the duct
34、plate. Other loads as specified in AA-4211,if present, shall also be considered (e.g., fluid momentumloads).In Fig. AA-D-3510, the cross-hatched area representsthe duct plate area tributary to the stiffener for loaddetermination.wheres pstiffener spacingWorHpwidth or height of the duct respectivelyH
35、5129 ps/2In lieu of the trapezoidal tributary area, a rectangulartributary area may be conservatively used for simplifi-cation.(a)Copyright ASME International Provided by IHS under license with ASME Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-ASME AG-1a2004AA-D
36、-3510AA-D-3520The capacity of duct stiffeners shall be determinedin accordance with conventional methods of structuraldesign.AA-D-3520 STIFFENER SIZE AND SPACINGDuct stiffener size and spacing is contingent uponmany parameters including duct plate thickness, ductpressure levels, seismic excitation l
37、evels and other loadsas discussed in AA-D-3510.It is recommended that as a starting point, the stiffenersize and spacings given by SMACNA, which are primar-ily based on operational requirements, be used. Then,based on detailed duct analysis, if a closer stiffenerspacing is required for a particular
38、duct size, thatspacing shall be used.80hi i l i 1$125 #80FIG. AA-D-3510Copyright ASME International Provided by IHS under license with ASME Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-ARTICLE RA-6000FABRICATION AND INSTALLATIONThe requirements of Article AA-600
39、0 shall applyexcept where expanded upon, modified, or otherwiseexempted by the following.RA-6100 WELDING AND BRAZINGRA-6110 WELDING AND BRAZINGPERFORMED ON ASME CODE,SECTION III, PRESSURE-RETAINING COMPONENTS ANDSUPPORTSWelding and brazing performed on ASME Code,Section III, pressure-retaining compo
40、nents and SectionIII, Subsection NF, component supports shall be inaccordance with Code Sections III and IX.RA-6120 WELDING AND BRAZINGPERFORMED ON ASME CODE,SECTION VIII, PRESSURE-RETAINING COMPONENTSWelding and brazing performed on Section VIIIpressure-retaining components shall be in accordancewi
41、th Code Sections VIII and IX.RA-6130 WELDING AND BRAZING OFNON-ASME BOILER ANDPRESSURE VESSEL CODEPRESSURE RETAININGCOMPONENTS AND SUPPORTSRA-6131 GeneralRA-6131.1 Scope. The requirements of this para-graph apply to the preparation of welding and brazingprocedure specifications, the qualification of
42、 weldingand brazing procedures, welders, brazers, and weldingoperators for all types of manual and machine welding245hi i l i 1$ 345 #245 ddand brazing processes, and the workmanship, weldquality, brazing quality, and inspection of weldmentsand brazed joints produced during the manufacture ofrefrige
43、ration equipment and components.RA-6131.2 Responsibility. Each Manufacturer isresponsible for the welding and brazing done by hisorganization and shall conduct the tests required bythis subparagraph to qualify the procedures used in theconstruction of the weldments and brazed joints builtunder this
44、Code, the performance of brazers, welders,and welding operators who apply these procedures, andthe inspections required for workmanship and qualityverification.RA-6131.3 Base Metal. Base metals to be joinedby welding or brazing shall be one of those listed inArticle RA-3000 or a combination of the b
45、ase metalslisted in Article RA-3000, provided the requirementsof RA-6131.2 are met.RA-6132 Welding ProceduresQualification of the Manufacturers welding proce-dure specifications shall be in accordance with therequirements of this section and either the ASME Code,Section IX, or ANSI/AWS D1.1. Once a
46、choice ismade between Section IX or ANSI/AWS D1.1, allqualifications shall be consistent with that particulardocument.RA-6133 Welder and Welding OperatorQualificationsRA-6133.1 Welder or welding operator qualificationtesting, or both, shall be performed in accordance withthe ASME Code, Section IX, o
47、r ANSI/AWS D1.1.Welding of the qualification test specimens shall beperformed in accordance with the Manufacturers weld-ing procedure specification qualified in accordance withRA-6132.Copyright ASME International Provided by IHS under license with ASME Not for ResaleNo reproduction or networking per
48、mitted without license from IHS-,-,-(a)ASME AG-1a2004RA-6133.2RA-6300RA-6133.2 Once a choice is made between SectionIX or ANSI/AWS D1.1, all qualification shall beconsistent with that particular document.RA-6200 CLEANING, FINISHING, ANDCOATINGRA-6210 CLEANLINESSEquipment internals shall be shop clea
49、ned and beprepared for shipment per the requirements of ASMENQA-1. Cleanliness levels shall be the same as forthe fluid systems of which the equipment is a part.The Design Specification shall identify the internalcleanliness levels of the associated fluid system. ASMENQA-1, Subpart 2.1, Class D cleanliness level shallapply.246hi
