ASTM_D_3486_-_85_scan.pdf

.-:,:.,.,.-t,-tDesignation:D3486-85.,1,;t,:!jjStandardPracticeforInstallationof VulcanizableRubber Tank Linings and PipeLinings1This standardis issued underthe fixed designationD 3486:the numberimmediatelyfollowing the designationindicatesthe year oforiginal adoptionor,in the case of revision,the year of last revision.A numberin parenthesesindicates the year of last reapproval.Asuperscriptepsilon(f)indicatesan editorialchange since the last revision or reapproval.1.Scope1.1 This practice as outlined in Parts A to G,covers thetechniques used to install rubber linings in metal tanks andpipes.Installationrequirements,procedures,inspectionin-structions,andstorage conditionsfor the lined tanksorequipment are outlined.1.2 The parts appear in the following sections:SectionPanA-Requirementsfor Field Installationof RubberSheet LiningsPanB-GeneraJProcedurefor Applicationof RubberSheet LiningPanC-RubberSheet Lining Inspectionand RepairsBefore and AfterVulcanizationPanD-Standardfor Surface Appearanceof RubberSheet LiningMaterialsPanE-Storageof ProtectiveLined VesselsPanF-ChemicalResistanceof RubberSheet LiningsPanG-GeneraJProcedurefor Applying RubberSheet Lining in Pipe89101.3 The values stated in SI units are to be regarded as thestandard.1.4 This standard may involve hazardous materials.oper-ations,and equipment.This standarddoes not purport toaddress all of the safety problems associated with its use.It isthe responsibility of whoever uses this standard to consult andestablish appropriate safety and health practices and deter-mine the applicability of regulalOry limitations prior to use.For specific precautionarystatements,see Section 4.2.Referenced Documents2.1 NACE Standard:TM-01-70VisualStandardfor Surfacesof New SteelAirblast Oeanedwith Sand Abrasive22.2 Steel Structures Painting Council Standard:SSPC No.S Blast Cleaning to WhiteMetal33.Significance and Use3.1 The storage of corrosive or abrasive,or both,solutionsor suspensionsrequires that the metalsurface of storagetanks,large pipes,or holding vessels be lined with a materialthat resists such action.Vulcanizedrubber that is securelyadhered to the tank or other metalsurface impartssuchresistance.An integral part of the installationof such liningsIThis practice is under thejurisdiction of ASTM Committee 0.11 on Rubberand is the directresponsibilityof SubcommineeD11.38 on VulcanizedRubberTankLinings,CUrTCnteditionapprovedMarch29,1985.PublishedMay1985.OriginallypublishedasD3486-77,LastpreviouseditionD 3486-80.2A,ailablefromtheNationalAssociationof CorrosionEngineers(NACE),2400 West Loop South.Houston,TX77027.)Availablefromthe SteelStructuresPaintingCouncil(SSPC),4400FifthAve.,Pittsburgh.PA15213.is the vulcanizationoperation that produces proper mechan.ical strength,chemical resistance,and good rubber-to-meta1adhesion.4564.PART A-REQUIREMENTSFOR FIELD INSTAl,.iLAnONOF RUBBER SHEET LININGS4.1 General-Tanksor other equipment too large to ship,or those that have to be erected prior to lining in criticalplant areas,can be lined at the purchasersplant by theapplicator in a manner that will be satisfactory in every wayfor the intended service.4.2 Services and FaiIities-The following services andfacilities are required to install a rubber sheet lining in thefield.Theiravailabilityandcost should be agreeduponbetween the applicator and the purchaser.4.2.1 Meral Fabrication-Metalfabricationand weldingshall be in accordance with specified codes.Welds shall bavea roundand smoothsurface suitable for applyingrubberlining.,4.2.2 Protection of Tank-2Ifthe equipmentto be lined islocated out of doors it win be necessary,in certain latitudesand seasons,to protect the equipmentfrom the weather andto providethe heat necessarx to maintaina temperatureaboveIS.C(S9.F).In any evtJ.t,theequipmentmust beproperly protected against rairi:aiid in warm weatherfromdirect exposure to the sun.,A satisfactory installationcannotbe made if conditions are!;tichas to induce condensationonsurfaces prior to cementiIii(andlining.Nor can lining beproperly cured unless equipmentis protected against exces-sive heat loss during cure.4.2.3 Blasting-Justprior to the applicationof the tmIcoat of adhesive primer,all metal surfaces to be lined shall be,abrasive-blastedto a gray-white(uniformmetallic)color.surface finish in accordancewith NACE StandardNo.JiTM-O1-70 or Steel Structures Painting Council SSPC No.S;IThe minimumsurface prof1.leshallbeO.OSI mm(0.002 in.I4.2.4 ScaffoldingandLadders-Onlargetanks,scaffolding and ladders must be provided and removed after the Ilining operation and the initial spark tests are completed.4.2.SWorkroomand CuttingTable Storage of Maten-Ials-The workroom and materials storage should be located Ias close to the equipment being lined as possible.Both should be reasonably clean,and the temperatureshould be Imaintained above IS.C(S9.F).A cutting table with a smooth top shall be provided.b4.2.6Ventilation and Safety Precautions:4.2.6.1 Solvent fumes from adhesives may be explosiunder ce