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TECHNICALSPECIFICATIONFOULINGRESISTANCESFORHEATTRANSFEREQUIPMENTDEP20.21.00.31-Gen.December1998DESIGNANDENGINEERINGPRACTICEThisdocumentisconfidential.NeitherthewholenoranypartofthisdocumentmaybedisclosedtoanythirdpartywithoutthepriorwrittenconsentofShellInternationalOilProductsB.V.andShellInternationalExplorationandProductionB.V.,TheHague,TheNetherlands.Thecopyrightofthisdocumentisvestedinthesecompanies.Allrightsreserved.Neitherthewholenoranypartofthisdocumentmaybereproduced,storedinanyretrievalsystemortransmittedinanyformorbyanyPDFcreatedwithpdfFactoryProtrialversionwww.pdffactory.commeans(electronic,mechanical,reprographic,recordingorotherwise)withoutthepriorwrittenconsentofthecopyrightowners.PDFcreatedwithpdfFactoryProtrialversionwww.pdffactory.comDEP20.21.00.31-Gen.December1998Page2PREFACEDEP(DesignandEngineeringPractice)publicationsreflecttheviews,atthetimeofpublication,of:ShellInternationalOilProductsB.V.(SIOP)andShellInternationalExplorationandProductionB.V.(SIEP)andShellInternationalChemicalsB.V.(SIC)TheHague,TheNetherlands,andotherServiceCompanies.Theyarebasedontheexperienceacquiredduringtheirinvolvementwiththedesign,construction,operationandmaintenanceofprocessingunitsandfacilities,andtheyaresupplementedwiththeexperienceofGroupOperatingcompanies.Whereappropriatetheyarebasedon,orreferenceismadeto,nationalandinternationalstandardsandcodesofpractice.TheobjectiveistosettherecommendedstandardforgooddesignandengineeringpracticeappliedbyGroupcompaniesoperatinganoilrefinery,gashandlinginstallation,chemicalplant,oilandgasproductionfacility,oranyothersuchfacility,andtherebytoachievemaximumtechnicalandeconomicbenefitfromstandardization.Theinformationsetforthinthesepublicationsisprovidedtousersfortheirconsiderationanddecisiontoimplement.ThisisofparticularimportancewhereDEPsmaynotcovereveryrequirementordiversityofconditionateachlocality.ThesystemofDEPsisexpectedtobesufficientlyflexibletoallowindividualoperatingcompaniesto