MeasurementofNoiseFromFiredProcessHeatersAPIRECOMMENDEDPRACTICE531MFIRSTEDITION,MARCH1980AmericanPetroleumInstitute2101LStreet,NorthwestWashington,D.C.20037JPMeasurementofNoiseFromFiredProcessHeatersRefiningDepartmentAPIRECOMMENDEDPRACTICE531MFIRSTEDITION,MARCH1980OFFICIALPUBLICATIONREG.U.S.PATENTOFFICEAPIrecommendedpracticesmaybeusedbyanyonedesiringtodoso,andeveryefforthasbeenmadebytheInstitutetoassuretheaccuracyandreliabilityoftheinformationcontainedinthem.However,theInstitutemakesnorepresentation,warranty,orguar-anteeinconnectionwiththepublicationofAPIrecommendedpracticesandherebyexpresslydisclaimsanyliabilityorresponsibilityforlossordamageresultingfromtheiruse;foranyviolationofanyfederal,state,ormunicipalregulationwithwhichanAPIrecommendedpracticemayconflict;orfortheinfringementofanypatentresultingfromtheuseofanAPIrecommendedpractice.Copyright©1980AmericanPetroleumInstituteFOREWORDThisrecommendedpracticeisbasedontheaccumulatedknowledgeandexperienceofpetroleumrefiners,firedheatermanufacturers,andengineeringcontractors.Theob-jectiveofthispublicationistoprovideastandardtestprocedureforthemeasurementofnoiseemanatingfromfiredprocessheaters.ThemetricsystemisusedexclusivelyinthisbookbecauseitistheuniversallyacceptedsystemandwasthesystemusedintheCONCAWEreport(seeAcknowledgment)thatservedasthebasisforthisrecommendedpractice.Althoughitisrecognized·thatthepurchasermaydesiretomodify,delete,oramplifysectionsofthepractice,itisstronglyrecommendedthatallsuchchangesbemadebysupplementingthispracticeratherthanbyrewritingorbyincorporatingsectionsintoanothercompletepractice.SuggestedrevisionsareinvitedandshouldbesubmittedtothedirectoroftheRefiningDepartment,AmericanPetroleumInstitute,2101LStreet,N.W.,Washington,D.C.20037.IllACKNOWLEDGMENTAcknowledgmentismadetoCONCAWEReportNo.2/76,"DetenninationofSoundPowerLevelsofIndustrialEquipment,ParticularlyOilIndustryPlant,''preparedbyMueller-BBMGmbHforCONCAWESpecialTaskForce;andtotheCONCAWEReportNo.3/77,"TestMethodfortheMeasurementofNoise...
