_API_MPMS_17.2_1999_2011.pdf

Manual of PetroleumMeasurement StandardsChapter 17-Marine MeasurementSection 2-Measurement of Cargoes On BoardTank VesselsSECOND EDITION,MAY 1999REAFFIRMED,SEPTEMBER 2011ener光1AMERICAN PETROLEUM INSTITUTEManual of PetroleumMeasurement StandardsChapter 17-Marine MeasurementSection 2-Measurement of Cargoes On BoardTank VesselsMeasurement CoordinationSECOND EDITION,MAY 1999REAFFIRMED,SEPTEMBER 2011energIAMERICAN PETROLEUM INSTITUTESPECIAL NOTESAPI publications necessarily address problems of a general nature.With respect to partic-ular circumstances,local,state,and federal laws and regulations should be reviewed.API is not undertaking to meet the duties of employers,manufacturers,or suppliers towarn and properly train and equip their employees,and others exposed,concerning healthand safety risks and precautions,nor undertaking their obligations under local,state,or fed-eral laws.Information concerning safety and health risks and proper precautions with respect to par-ticular materials and conditions should be obtained from the employer,the manufacturer orsupplier of that material,or the material safety data sheet.Nothing contained in any API publication is to be construed as granting any right,byimplication or otherwise,for the manufacture,sale,or use of any method,apparatus,or prod-uct covered by letters patent.Neither should anything contained in the publication be con-strued as insuring anyone against liability for infringement of letters patent.Generally,API standards are reviewed and revised,reaffirmed,or withdrawn at least everyfive years.Sometimes a one-time extension of up to two years will be added to this reviewcycle.This publication will no longer be in effect five years after its publication date as anoperative API standard or,where an extension has been granted,upon republication.Statusof the publication can be ascertained from the general manager of the Upstream Segmenttelephone(202)682-80001.A catalog of API publications and materials is published annu-ally and updated quarterly by API,1220 L Street,N.W.,Washington,D.C.20005.This document was produced under API standardization procedures that ensure appropri-ate notification and participation in the developmental process and is designated as an APlstandard.Questions concerning the interpretation of the content of this standard or com-ments and questions concerning the procedures under which this standard was developedshould be directed in writing to the general manager of the Upstream Segment,AmericanPetroleum Institute,1220 L Street,N.W.,Washington,D.C.20005.Requests for permissionto reproduce or translate all or any part of the material published herein should also beaddressed to the director.API standards are published to facilitate the broad availability of proven,sound engineer-ing and operating practices.These standards are not intended to obviate the need for apply-ing sound engineering judgment regarding when and where these standards should beutilized.The formulation and publication of API standards is not intended in any way toinhibit 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 Publisher.API Publishing Services,1220 L Street,N.W.,Washington,D.C.20005.Copyright C 1999 American Petroleum InstituteFOREWORDThis publication is intended to encourage the development of uniform practices for mea-surement of cargoes aboard marine tank vessels.It presents current methods of cargo mea-surement,but this is not intended to preclude the use of any new technology or the revisionof the methods presented.To gain a better understanding of the methods described in thispublication,the reader should review in detail the latest editions of the referenced publica-tions.Metric units are listed in this document in a manner that reflects current marine practice.Nothing contained in this publication is intended to supersede any operating practices rec-ommended by organizations such as the Oil Companies International Marine Forum or indi-vidual operating companies,nor is the publication intended to conflict with any safety orenvironmental considerations,local conditions,or the specific provisions of any contract.All procedures described in this publication should be performed by or in the presence ofthe ships master.the barge captain,or their representatives.For reasons of safety,only non-sparking equipment shall be used for measurements on board marine tank vessels.This standard requires the purchaser to specify certain details and features.Although it isrecognized that the purchaser may desire to modify,delete,or amplify sections of this stan-dard,it is strongly recommended that such modifications,deletions,and amplifications bemade by supplementing this standard,rather than by rewriting or incorporating sectionsthereof into another complete standard.API standards are published as an aid to procurement of standardized equipment andmaterials.These standards are not intended to inhibit purchaser or producers from purchas-ing or producing products made to specifications other than those of API.API publications may be used by anyone desiring to do so.Every effort has been made bythe Institute to assure the accuracy and reliability of the data contained in them;however,theInstitute makes no representation,warranty,or guarantee in connection with this publicationand hereby expressly disclaims any liability or responsibility for loss or damage resultingfrom its use or for the violation of any federal,state,or municipal regulation with which thispublication may conflict.Suggested revisions are invited and should be submitted to the general manager of theUpstream Segment,American Petroleum Institute,1220 L Street,N.W.,Washington,D.C.20005.