_API_MPMS_21.2_1998_2016.pdf

FOREWORDAPI 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.This standard is under the jurisdiction of the API Committee on Petroleum Measurement,Subcommittee on Liquid Measurement.This standard shall become effective January 1,1999,but may be used voluntarily from the date of distribution.Suggested revisions areinvited and should be submitted to the Measurement Coordinator,American Petroleum Insti-tute,1220 L Street,N.W.,Washington,D.C.20005.