1、ASME B31.1a-2008Addenda toASME B31.1-2007Power PipingASME Code for Pressure Piping,B31AN AMERICAN NATIONAL STANDARDThree Park Avenue New York,NY 10016A5807ACopyright 2008 by the American Society of Mechanical Engineers.No reproduction may be made of this material without written consent of ASME.cCop
2、yrighted material licensed to Stanford University by Thomson Scientific(),downloaded on Oct-05-2010 by Stanford University User.No further reproduction or distribution is permitted.Uncontrolled when printed.Date of Issuance:June 9,2008ASME is the registered trademark of The American Society of Mecha
3、nical Engineers.This code or standard was developed under procedures accredited as meeting the criteria for American NationalStandards.The Standards Committee that approved the code or standard was balanced to assure that individuals fromcompetent and concerned interests have had an opportunity to p
4、articipate.The proposed code or standard was madeavailable forpublic review andcomment thatprovides an opportunityfor additional publicinput from industry,academia,regulatory agencies,and the public-at-large.ASME does not“approve,”“rate,”or“endorse”any item,construction,proprietary device,or activit
5、y.ASME does not take any position with respect to the validity of any patent rights asserted in connection with anyitems mentioned in this document,and does not undertake to insure anyone utilizing a standard against liability forinfringement of any applicable letters patent,nor assume any such liab
6、ility.Users of a code or standard are expresslyadvised that determination of the validity of any such patent rights,and the risk of infringement of such rights,isentirely their own responsibility.Participation by federal agency representative(s)or person(s)affiliated with industry is not to be inter
7、preted asgovernment or industry endorsement of this code or standard.ASME accepts responsibility for only those interpretations of this document issued in accordance with the establishedASME procedures and policies,which precludes the issuance of interpretations by individuals.No part of this docume
8、nt may be reproduced in any form,in an electronic retrieval system or otherwise,without the prior written permission of the publisher.The American Society of Mechanical EngineersThree Park Avenue,New York,NY 10016-5990Copyright 2008 byTHE AMERICAN SOCIETY OF MECHANICAL ENGINEERSAll rights reservedPr
9、inted in U.S.A.Copyright 2008 by the American Society of Mechanical Engineers.No reproduction may be made of this material without written consent of ASME.cCopyrighted material licensed to Stanford University by Thomson Scientific(),downloaded on Oct-05-2010 by Stanford University User.No further re
10、production or distribution is permitted.Uncontrolled when printed.ASME B31.1a-2008Following approval by the B31 Committee and ASME,and after public review,ASME B31.1a-2008was approved by the American National Standards Institute on March 3,2008.Addenda to ASME B31.1-2007 are issued in the form of re
11、placement 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 Addenda to be published to ASME B31.1-2
12、007.Replace or insert the pages listed.Changes given below are identified on the pages by a marginnote,(A08),placed next to the affected area.Revisions introduced in ASME B31.1-2007 areindicated by(07).The pages not listed are the reverse sides of the listed pages and contain nochanges.PageLocationC
13、hangeviiixCommittee RosterUpdated3Fig.100.1.2(B)(1)In left half of drawing,near para.122.1.7(D)callouts,two circlesindicating jurisdiction andresponsibility corrected by errata tobe open(2)In right half of drawing,tworeferences to para.122.1.7 deleted andnew one added by errata10,10.1101.2.5Added13E
14、quation(2)Equation and its nomenclature revised1616.2102.4.7Added104.1.1Added104.1.2Title revisedTable 102.4.7Added18,18.1104.1.4Added19104.3.1(D.2)(1)Dodeleted(2)Doband Dohadded23104.3.1(G.4)Revised104.3.1(G.5)Revised24Fig.104.3.1(G)Callouts revised41,42119.10.1Nomenclature for Ecand Ehrevised50Fig
15、.122.1.7(C)Callouts revised62,62.1123.2.2(C)Added123.4Added(c)Copyright 2008 by the American Society of Mechanical Engineers.No reproduction may be made of this material without written consent of ASME.cCopyrighted material licensed to Stanford University by Thomson Scientific(),downloaded on Oct-05
16、-2010 by Stanford University User.No further reproduction or distribution is permitted.Uncontrolled when printed.PageLocationChange124.4In text table,for last three entries,cross-references corrected by errata124.5In text table,for last three entries,cross-references corrected by errata63124.6(C)In text table,for sixth through eighthentries,cross-references corrected byerrata67Table 126.1(1)Under Forgings,for ASTM B 462,titlerevised(2)Under Seamless Pipe and Tube,ASTM B 690 added68Table 126.1(1)
