_API_MPMS_16.2_1994_2017.pdf

Manual of PetroleumMeasurement StandardsChapter 16-Measurement ofHydrocarbon Fluids ByWeight or MassSection 2-Mass Measurement of LiquidHydrocarbons in Vertical CylindricalStorage Tanks By Hydrostatic TankGaugingFIRST EDITION.NOVEMBER 1994REAFFIRMED,DECEMBER 2017ener市1AMERICAN PETROLEUM INSTITUTESPECIAL NOTES1.API PUBLICATIONS NECESSARILY ADDRESS PROBLEMS OF A GENERALNATURE.WITH RESPECT TO PARTICULAR CIRCUMSTANCES,LOCAL,STATE,AND FEDERAL LAWS AND REGULATIONS SHOULD BE REVIEWED.2.API IS NOT UNDERTAKING TO MEET THE DUTIES OF EMPLOYERS,MANU-FACTURERS,OR SUPPLIERS TO WARN AND PROPERLY TRAIN AND EOUIPTHEIR EMPLOYEES.AND OTHERS EXPOSED,CONCERNING HEALTH ANDSAFETY RISKS AND PRECAUTIONS.NOR UNDERTAKING THEIR OBLIGATIONSUNDER LOCAL,STATE,OR FEDERAL LAWS.3.INFORMATION CONCERNING SAFETY AND HEALTH RISKS AND PROPERPRECAUTIONS WITH RESPECT TO PARTICULAR MATERIALS AND CONDI-TIONS SHOULD BE OBTAINED FROM THE EMPLOYER.THE MANUFACTUREROR SUPPLIER OF THAT MATERIAL,OR THE MATERIAL SAFETY DATA SHEET.4.NOTHING CONTAINED IN ANY API PUBLICATION IS TO BE CONSTRUED ASGRANTING ANY RIGHT.BY IMPLICATION OR OTHERWISE.FOR THE MANU-FACTURE.SALE,OR USE OF ANY METHOD.APPARATUS.OR PRODUCTCOVERED BY LETTERS PATENT.NEITHER SHOULD ANYTHING CONTAINEDIN THE PUBLICATIONS BE CONSTRUED AS INSURING ANYONE AGAINSTLIABILITY FOR INFRINGEMENT OF LETTERS PATENT.5.GENERALLY,API STANDARDS ARE REVIEWED AND REVISED,REAF-FIRMED,OR WITHDRAWN AT LEAST EVERY FIVE YEARS,SOMETIMES A ONE-TIME EXTENSION OF UP TO TWO YEARS WILL BE ADDED TO THIS REVIEWCYCLE.THIS PUBLICATION WILL NO LONGER BE IN EFFECT FIVE YEARSAFTER ITS PUBLICATION DATE AS AN OPERATIVE API STANDARD OR.WHERE AN EXTENSION HAS BEEN GRANTED,UPON REPUBLICATION.STATUS OF THE PUBLICATION CAN BE ASCERTAINED FROM THE APIAUTHORING DEPARTMENT TELEPHONE(202)682-80001.A CATALOG OF APIPUBLICATIONS AND MATERIALS IS PUBLISHED ANNUALLY AND UPDATEDQUARTERLY BY API.1220 L STREET.N.W.WASHINGTON.D.C.20005.Copyright 1994 American Petroleum InstituteFOREWORDThis publication covers standard practice for mass measurement of liquid hydrocarbonsin vertical cylindrical storage tanks by hydrostatic tank gauging systems that use pressuresensors with one port open to the atmosphere.This standard is based entirely on ISO 11223-1,Petroleum and liquid petroleum productsDirect static measurements-Contents of vertical storage tanks,Part 1-Mass measure-ment by hydrostatic tank gauging.International standard ISO 11223-1 was prepared by theTechnical Committee ISO/TC 28,Petroleum products and lubricants,Subcommittee 3,Static petroleum measurement.Changes have been made to use American spelling and vocabulary,to provide customaryunits in addition to SI units,and to provide API instead of ISO reference publications.Appendices A and B are required.Appendices C and D are for information only.API publications may be used by anyone desiring to do so.Every effort has been madeby the Institute to assure the accuracy and reliability of the data contained in them;however,the Institute makes no representation,warranty,or guarantee in connection with thispublication and hereby expressly disclaims any liability or responsibility for loss or damageresulting from its use or for the violation of any federal,state,or municipal regulation withwhich this publication may conflict.Suggested revisions are invited and should be submitted to Measurement Coordination,Exploration and Production Department,American Petroleum Institute,1220 L Street,N.W.,Washington,D.C.20005.