_API_MPMS_4
9.2
_2005_2015
Manual of PetroleumMeasurement StandardsChapter 4-Proving SystemsSection 9-Methods of Calibration forDisplacement and Volumetric TankProversPart 2-Determination of the Volume ofDisplacement and Tank Provers by theWaterdraw Method of CalibrationFIRST EDITION,DECEMBER 2005REAFFIRMED,JULY 2015ener光1AMERICAN PETROLEUM INSTITUTEManual of PetroleumMeasurement StandardsChapter 4-Proving SystemsSection 9-Methods of Calibration forDisplacement and Volumetric TankProversPart 2-Determination of the Volume ofDisplacement and Tank Provers by theWaterdraw Method of CalibrationMeasurement CoordinationFIRST EDITION,DECEMBER 2005REAFFIRMED,JULY 2015ener1AMERICAN PETROLEUM INSTITUTESPECIAL NOTESAPI publications necessarily address problems of a general nature.With respect to particularcircumstances,local,state,and federal laws and regulations should be reviewed.Neither API nor any of APIs employees,subcontractors,consultants,committees,or otherassignees make any warranty or representation,either express 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practices.These publications are not intended to obviate the need forapplying sound engineering judgment regarding when and where these publications shouldbe utilized.The formulation and publication of API publications is not intended in any wayto inhibit anyone from using any other practices.Any manufacturer marking equipment or materials in conformance with the markingrequirements of an API standard is solely responsible for complying with all the applicablerequirements of that standard.API does not represent,warrant,or guarantee that such prod-ucts do in fact conform to the applicable API standard.All rights reserved.No part of this work may be reproduced,stored in a retrieval system,ortransmitted by any means,electronic,mechanical,photocopying,recording,or otherwise,without prior written permission from the publisher Contact the PublisherAPI Publishing Services,1220 L Street,N.W.,Washington,D.C.20005.Copyright 2005 American Petroleum InstituteFOREWORDThis multi-part publication consolidates and standardizes calibration procedures for dis-placement and volumetric tank provers used in the metering of petroleum liquids.It providesessential information on the operations involved in obtaining a valid,accurate and accept-able prover volume by different calibration methods.Units of measure in this publication arein the International System(SI)and United States Customary(USC)units consistent withNorth American industry practices.Part I is the introduction and contains those aspects thatare generic to the various methods of calibration,including waterdraw(WD),master meter(MM)and gravimetric(GM).Each subsequent part is intended to be used in conjunctionwith Part I for the particular calibration procedure described.This section consists of the fol-lowing four parts:Part 1-Introduction to the Determination of theVolume of Displacement and Tank ProversPart 2-Determination of the Volume of Displacementand Tank Provers by the Waterdraw Method of CalibrationPart 3-Determination of the Volume of DisplacementProvers by the Master Meter Method of CalibrationPart 4-Determination of the Volume of DisplacementProvers by the Gravimetric Method of CalibrationThis standard was developed through the cooperative efforts of many individuals from thepetroleum industry,under the sponsorship of the American Petroleum Institute.Nothing contained in any API publication is to be construed as granting any right,by impli-cation or otherwise,for the manufacture,sale,or use of any method,apparatus,or productcovered by letters patent.Neither should anything contained in the publication be construedas insuring anyone against liability for infringement of letters patent.This document was produced under API standardization procedures that ensure appropriatenotification and participation in the developmental process and is designated as an API stan-dard.Questions concerning the interpretation of the content of this publication or commentsand questions concerning the 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