1、Copyrighted 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.ASME PTC 12.2-1 998(REVISION OF ANSI/ASME PTC 12.2-1 9(Performance Test Code on Steam Surf
2、ace Condensers Copyrighted 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:September 18,1998 This document will be revised when the S
3、ociety approves the issuance of the next edition.There will be no addenda issued to ASME PTC 12.2-1998.Please Note:ASME issues written replies to inquiries concerning interpretation of technical aspects of this document.The interpretations are not part of the document.PTC 12.2-1 998 is being issued
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9、bility for only those interpretations issued in accordarlce with governing ASME procedures and policies which preclude.the issuance of interpretations by individual volunteers.No part of this document may be reproduced in any form,in an electronic retrieval system or otherwise,without the prior writ
10、ten permission of the publisher.The American Society of Mechanical Engineers Three Park Avenue,New York,NY 1001 6-5990 Copyright 0 1998 by THE AMERICAN SOCIETY.OF MECHANICAL ENGINEERS All Rights Reserved Printed in U.S.A.Copyrighted material licensed to Stanford University by Thomson Scientific(),do
11、wnloaded on Oct-05-2010 by Stanford University User.No further reproduction or distribution is permitted.Uncontrolled when printed.FOREWORD(This Foreword is not a part of ASME PTC 12.2-1998.)When the work of revising the ASME Power Test Codes of 191 5 was undertaken it was decided to include a Commi
12、ttee to develop three separate test codes on Condensing Apparatus,Feedwater Heaters,and Water Cooling Equipment.The resulting Test Code for Steam-Condensing Apparatus,after passing through the preliminary stages in the procedure prescribed by the Main committee,was printed in tentative form in the M
13、ay 1924 issue of Mechanical Engineering and was presented to the Society for discussion at a public hearing held during the Spring Meeting in Cleveland in May 1924.At the December 1924 meeting of the PTC Supervisory Committee(now known as the Board on Performance Codes),it was approved in its final
14、revised form and on October 5,1925,it was approved and adopted by the Council as a standard practice of the Society.Early in 1933 Committee No.12 decided to completely revise the Test Code for Steam-Condensing Apparatus.At the April 4,1938,meeting of the PTC Supervisory committee,this second version
15、 of the Code was approved and on July 15,1938,it superseded the previous one and was adopted as a standard practice of the Society by the Council.With the reorganization of PTC Committee No.12 on Condensers,Feedwater Heaters,and Deaerators in 1948,the main Power Test Codes Committee requested that t
16、he Test Code for Steam-Condensing Apparatus be brought up to date.This third edition of the Code was approved at the December 4,1953,meeting of the Power Test Codes Committee and adopted by the Council as a standard practice of the Society on March 9,1954.In January 1970 the PTC Supervisory Committee requested the Test Code for Steam-Condensing Apparatus be reviewed and updated.That fourth version of the Code was approved by the Board on Performance Test Codes on May 7 2,1981,and it became an Am