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2、N A T I O N A L S T A N D A R D Measurement Uncertainty for Fluid Flow in Closed Conduits ANSI/ASME MFC-2M-1983 SPONSORED AND PUBLISHED BY T H E A M E R I C A N S O C I E T Y O F M E C H A N I C A L E N G I N E E R S United Engineering Center 345 East 47th Street New York,N.Y.10017 Copyrighted mater
3、ial 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:August 31,1984 This Standard will be revised when the Society approves the issuance of a n
4、ew edition.There will be no addenda or written interpretations of the requirements of this Standard issued to this Edition.This code or standard was developed under procedures accredited as meeting the criteria for Ameri-can National Standards.The Consensus Committee that approved the code or standa
5、rd was balanced to assure that individuals from competent and concerned interests have had an opportunity to partici-pate.The proposed code or standard was made available for public review and comment which pro-vides an opportunity for additional public input from industry,academia,regulatory agenci
6、es,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 con-nection with any items mentioned in this document,and does not undertake to insure a
7、nyone utilizing a standard against liability for infringement of any applicable Letters Patent,nor assume any such ha.bility.Users of a code or standard are expressly advised that determination of the validity of any such patent rights,and the risk of infringement of such rights,is entirely their ow
8、n responsibility.Participation by federal agency representativek)or personk)affiliated with industry is not to be in-terpreted as government or industry endorsement of this code or standard.ASME does not accept any responsibilin/for interpretations of this document made by individual volunteers.No p
9、art of this document may be reproduced in any form,in an electronic retrieval system or otherwise,without the prior written permission of the publisher.Copyright 0 1984 by THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS All Rights Resewed Printed in U.S.A.Copyrighted material licensed to Stanford Unive
10、rsity by Thomson Scientific(),downloaded on Oct-05-2010 by Stanford University User.No further reproduction or distribution is permitted.Uncontrolled when printed.FOREWORD(This Foreword is not part of American National Standard,Measurement Uncer-tainty for Fluid Flow in Closed Conduits,ANSllASME MFC
11、-2M-1983.)This Standard was prepared by Subcommittee 1 of the American Society of Mechanical Engineers The methodology is consistent with that described in:Standards Committee on Measurement of Fluid Flow in Closed Conduits.Joint Army,Navy,NASA,Air Force Propulsion Committee (JANNAF).ICRPG Handbook
12、for Esti-mating the Uncertainty in Measurements Made with Liquid Propellant Rocket Engine Systems.CPIA Publication 180.AD 851 127.Available from NTIS,5285 Port Royal Road,Springfield,VA 22161.U.S.Dept.of the Air Force.Arnold Engineering Development Center.Handbook:Uncertainty in Gas Turbine Measurem
13、ents.USAF AEDC-TR-73-5.AD 755356.Available from NTIS,5285 Port Royal Road,Springfield,VA 22161.The Committee is indebted to the many engineers and statisticians who contributed to this work.Most noteworthy are J.Rosenblatt and H.Ku of the National Bureau of Standards for their helpful discussions an
14、d comments.The measurement uncertainty model is based on recommendations by the National Bureau of Standards.D.R.Keyser suggested the alternate model and other changes.B.Ringhiser programmed the Monte Carlo simulations for uncertainty intervals and outliers.Encouragement and constructive criticism w
15、ere provided by:G.Adams,Chairman,The Society of Automotive Engineers,Committee E33C,USAF,WPAFB,ASD R.P.Benedict,Chairman,The American Society of Mechanical Engineers,Committee PTC19.1,Westinghouse J.W.Thompson,Jr.,ARO,Inc.R.H.Dieck,Pratt&Whitney Aircraft J.Ascough,National Gas Turbine Establishment,
16、Great Britain C.P.Kittredge,Consulting Engineer R.W.Miller,Foxboro Co.This Standard was approved by the ASME Standards Committee on Measurement of Fluid Flow in Closed Conduits and subsequently adopted as an American National Standard on March 17,1983.iii 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 COMMITTEE Measureme
