_API_RP_1639-2003_2012.pdf

Owner/Operators Guide to Operationand Maintenance of Vapor RecoverySystems at Gasoline DispensingFacilitiesDownstream SegmentAPI RECOMMENDED PRACTICE 1639FIRST EDITION,JULY 2003REAFFIRMED,MAY 2012ener1AMERICAN PETROLEUM INSTITUTEFOREWORDThis recommended practice provides guidance for owners and operators of gasoline dis-pensing facilities and regulatory officials regarding the operation and maintenance of gaso-line vapor recovery systems and components.Proper operation and maintenance of vaporrecovery equipment can improve compliance with vapor recovery regulations and providesubstantial emission reductions.In preparing this recommended practice,careful consideration was given to the following:a.Promoting safety.b.Protecting human health and the environment.c.Preventing release of vapors from service stations.d.Detecting petroleum vapor releases.e.Minimizing the cost of effective maintenance.Every effort has been made to ensure the consistency of the recommendations with theapplicable sections of NFPA 30 Flammable Liguid Code and NFPA 30A Code for MotorFuel Dispensing Facilities and Repair Garages.In addition,consideration was given tolocal,state and federal laws and regulations.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,local,or municipal regulation withwhich this publication may conflict.Suggested revisions are invited and should be submitted to the standardization manager,American Petroleum Institute,1220 L Street,N.W.,Washington,D.C.20005.今