Sizing,Selection,andInstallationofPressure-RelievingDevicesinRefineriesPartI-SizingandSelectionAPIRECOMMENDEDPRACTICE520SEVENTHEDITION,JANUARY2000EnvironmentalPartnershipAmericanPetroleumInstituteHelpingYouGetTheJobDoneRight.""CopyrightbytheAmericanPetroleumInstituteThuMay1115:56:432006n~~'StrategiesforToday'sEnvironmentalPartnershipAPIENVIRONMENTAL,HEALTHANDSAFETYMISSIONANDGUIDINGPRINCIPLESThemembersoftheAmericanPetroleumInstitutearededicatedtocontinuouseffortstoimprovethecompatibilityofouroperationswiththeenvironmentwhileeconomicallydevelopingenergyresourcesandsupplyinghighqualityproductsandservicestoconsum-ers.Werecognizeourresponsibilitytoworkwiththepublic,thegovernment,andotherstodevelopandtousenaturalresourcesinanenvironmentallysoundmannerwhileprotectingthehealthandsafetyofouremployeesandthepublic.Tomeettheseresponsibilities,APImemberspledgetomanageourbusinessesaccordingtothefollowingprinciplesusingsoundsciencetoprioritizerisksandtoimplementcost-effectivemanagementpractices:Torecognizeandtorespondtocommunityconcernsaboutourrawmaterials,prod-uctsandoperations.Tooperateourplantsandfacilities,andtohandleourrawmaterialsandproductsinamanncrthatprotcctsthccnvironmcnt,andthcsafctyandhcalthofourcmployccsandthepublic.Tomakesafety,healthandenvironmentalconsiderationsapriorityinourplanning,andourdevelopmentofnewproductsandprocesses.Toadvisepromptly,appropriateofficials,employees,customersandthepublicofinformationonsignificantindustry-relatedsafety,healthandenvironmentalhazards,andtorecommendprotectivemeasures.Tocounselcustomers,transportersandothersinthesafeuse,transportationanddis-posalofourrawmaterials,productsandwastematerials.Toeconomicallydevelopandproducenaturalresourcesandtoconservethoseresourcesbyusingenergyefficiently.Toextendknowledgebyconductingorsupportingresearchonthesafety,healthandenvironmentaleffectsofourranTmaterials,products,processesandwastematerials.Tocommittoreduceoverallemissionsandwastegeneration.Toworkwithotherstoresolveproblemscreatedbyhandlin...
