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.REAFFIRMED 2005FOR CURRENT COMMITTEE PERSONNELPLEASE E-MAIL CSasme.orgThe American Society
2、 of Mechanical Engineers A N A M E R I C A N N A T I O N A L S T A N D A R D MEASUREMENT OF F L U I D FLOW I N P I P E S U S I N G VORTEX FLOWMETERS ASME MFC-6M-1998 Copyrighted material licensed to Stanford University by Thomson Scientific(),downloaded on Oct-05-2010 by Stanford University User.No
3、further reproduction or distribution is permitted.Uncontrolled when printed.Date of Issuance:July 4,1998 This Standard will be revised when the Society approves the issuance of a new edition.There will be no addenda or written interpretations of the requirements of this Standard issued to this editi
4、on.ASME 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 National Standards.The Standards Committee that approved the code or standard was balanced to assure that individua
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9、e 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 written permission of the publisher.The American Society of Mechanical Engineers Three Park Avenue,New York,NY 10016-5990 Copyright(9
10、 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(),downloaded on Oct-05-2010 by Stanford University User.No further reproduction or distribution is permitted.Uncontrolled when printed
11、.FOREWORD(This Foreword is not a part of ASME MFC-6M-1998.)This Standard has been prepared by ASME/MFCC/SC16-Vortex Shedding Flowmeters.It is one of a series of standards covering a variety of devices that measure the.flow of fluids in closed conduits.The vortex shedding principle has become an acce
12、pted basis for fluid flow measurement.Meters based on this principle are available for measuring the flow of fluids ranging from cryogenic liquids to steam and high-pressure gases.Vortex shedding flowmeters are also referred to as vortex meters.Their designs are proprietary and,therefore,their desig
13、n details and associated uncertainty bands cannot be covered in this document.However,these devices have in common the shedding of alternating pairs of vortices from some obstruction in the meter.The natural laws of physics relate the shedding frequency,5 to the volumetric flowrate,qy,of the fluid i
14、n the conduit.The vortex pairs can be counted over a given period of time to obtain total flow.This Standard contains the relevant terminology,test procedures,list of specifications,application notes,and equations with which to determine the expected performance character-istics.This Standard was ap
15、proved by the American National Standards Institute on February 20,1998.111 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 STANDARDS
16、 COMMllTEE MFFCC Measurement of Fluid Flow in Closed Conduits(The following is the roster of the Committee at the time of approval of this Standard.)OFFICERS R.W.Miller,Chair E.H.Jones,Vice Chair K.M.Padilla,Secretary COMMITTEE PERSONNEL N.A.Alston,Measurement&Control,Inc.C.J.Blechinger,Ford Motor Co.R.W.Caron,Ford Motor Co.G.P.Corpron,Equimeter,Inc.R.J.DeBoom,Micro Motion,Inc.R.H.Fritz,Saudi Aramco T.L.Hillburn,Turnbow Engineering Z.D.Husain,Texaco,Inc.E.H.Jones,Chevron Petroleum Technology T.M
