1、Designation: F3285 18Standard Guide forInstallation and Application of Type C Portable Tanks forMarine LNG Service1This standard is issued under the fixed designation F3285; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year
2、of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This guide is intended to identify and define the mini-mum requirements for the best practices in the design,instal
3、lation, and application of Type C portable tanks in marineliquefied natural gas (LNG) fuel tank service used on LNG-fueled vessels.1.2 This guide comprises the necessary guidance for regu-latory compliance in addition to the requirements of the IMOIGF Code, along with the risk assessment considerati
4、ons todetail the criteria for design, location, configuration, associatedsafety systems, and periodic system inspections. Included inthe safety systems criteria would be leakage/spill detection andcontainment, water spray protection, emergency shutdown,grounding requirements, pressure relief to a fi
5、xed ventingsystem, associated alarms, and color code markings for systemidentification. The locating and securing of suitable tank typeswith associated systems for marine service that will ensurecompliant vessel stability with appropriate access to criticalsystems and connections for emergency respo
6、nse and vesselegress will also be addressed in this guide.1.3 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to establish appro-priate safety, health, and environmental practices and deter-min
7、e the applicability of regulatory limitations prior to use.1.4 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recom-mendations
8、issued by the World Trade Organization TechnicalBarriers to Trade (TBT) Committee.2. Referenced Documents2.1 EN Standard:2EN 1474-2 Installation and Equipment for Liquefied NaturalGasDesign and Testing of Marine Transfer SystemsPart 2: Design and Testing of Transfer Hoses2.2 IMO Standards:3IGF Code
9、IMO MSC 95/22/Add. 1 Annex 1 InternationalCode of Safety for Ships Using Gases or Other LowFlashpoint FuelsIMDG Code International Maritime Dangerous Goods Code2.3 ISO Standards:2ISO 1496-3 Series 1 Freight ContainersSpecification andTestingPart 3: Tank Containers for Liquids, Gases andPressurized D
10、ry BulkISO 14726 Ships and Marine TechnologyIdentificationColors for the Content of Piping Systems2.4 Federal Standard:449 CFR 393.134 What Are the Rules for Securing Roll-On/Roll-Off or Hook Lift Containers?3. Terminology3.1 Definitions:3.1.1 green seas, nsolid waves of water coming aboard aship.3.
11、1.2 holding time, nmeans the time that will elapse fromthe establishment of the initial filling condition until thepressure has risen due to heat influx to the lowest set pressureof the pressure-limiting device(s).3.1.3 Type C portable tanks, npressure vessels meetingthe requirements of 6.4.15.3 of
12、the IGF Code, which are alsodesigned to be safely disconnected and removed from the1This guide is under the jurisdiction of ASTM Committee F25 on Ships andMarine Technology and is the direct responsibility of Subcommittee F25.11 onMachinery and Piping Systems.Current edition approved May 15, 2018. P
13、ublished June 2018. DOI: 10.1520/F3285-18.2Available from American National Standards Institute (ANSI), 25 W. 43rd St.,4th Floor, New York, NY 10036, http:/www.ansi.org.3Available from International Maritime Organization, 4, Albert Embankment,London, SE1 7SR, UK, http:/www.imo.org.4Available from U.
14、S. Government Printing Office, Superintendent ofDocuments, 732 N. Capitol St., NW, Washington, DC 20401-0001, http:/www.access.gpo.gov.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United StatesThis international standard was developed in accorda
15、nce with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.1vessel for refilling ashore and ca
16、pable of being brought back onboard and reconnected.3.2 Acronyms:3.2.1 LNGliquefied natural gas4. Significance and Use4.1 This guide is intended to define and identify bestpractices for minimum requirements for the design,installation, and application of Type C portable tanks formarine service on LN
17、G fueled vessels for service as a LNGfuel tank. These best practices provide added detail to therequirements in 6.5 of the IGF Code to facilitate consistent andpractical implementation of those requirements.5. ProcedureNOTE 1In addition to the regulations in 6.5 of the IGF Code, thefollowing represe
18、nt best practices for the safe design, installation, andoperation of Type C portable tanks for use in shipboard LNG fuel systems.The following text in italics comes from the International Code of Safetyfor Ships using Gases or other Low-Flashpoint Fuels (IGF Code).5.1 Tank ConstructionThe design of
19、the tank shall complywith IGF Code 6.4.15.3. The tank support (container frame ortruck chassis) shall be designed for the intended purpose (IGFCode 6.5.1).5.1.1 The design of the tank support shall include consid-erations to withstand green seas if applicable for the operatingenvironment.5.1.2 The d
20、eck strength calculation shall be included and bepart of the design approval process.5.1.3 The portable tank connections shall be clearly colormarked and labelled to indicate its function in accordance withISO 14726.5.1.4 Plan review and approval of portable tanks shall bevessel-specific with docume
21、ntation clearly indicating the ves-sel or vessels for which the tanks have been designed. Eachportable tank approved for use with a vessels LNG fuel systemshall be listed in the vessels fuel handling manual (IGF Code18.2.3) by serial number or other suitable identifying marking.Due consideration sha
22、ll be given to applicable internationaland domestic multi-modal portable tank regulations such asthose contained in the IMO IMDG Code.5.2 Tank LocationPortable fuel tanks shall be located indedicated areas fitted with (IGF Code 6.5.2) the following:5.2.1 Mechanical protection of the tanks depending
23、onlocation and cargo operations (IGF Code 6.5.2.1). Mechanicalprotection shall be in the form of a structural frame around thetank in accordance with ISO 1496-3 or equivalent. The riskassessment required by 4.2 and 6.4.1.1 of the IGF Code shouldaddress any mechanical protection required for portable
24、 fueltanks taking into account the tanks location, the overall vesseldesign, and the cargo/vessel operations. This includes protec-tion against the following:5.2.1.1 Lateral impact, which may consist of longitudinalbars protecting the shell on both sides;5.2.1.2 Overturning, which may consist of rei
25、nforcementrings or bars fixed across frames;5.2.1.3 Front and rear impact, which may consist of abumper or frame; and5.2.1.4 Shell damage, which may consist of a structuralframe constructed in accordance with a recognized standard.5.2.2 If located on open deck: spill protection and waterspray system
26、s for cooling (IGF Code 6.5.2.2).5.2.2.1 Spill protection can either be part of the tank framesupport or the ship. If it is part of the portable tank, it shall beconnected by flexible hose to the ships system in accordanceto EN 1474-2: or equivalent.5.2.2.2 Similarly, the water spray system can be p
27、art of theportable tank or the ship.5.3 Tank-Securing SystemsPortable fuel tanks shall besecured to the deck while connected to the ship systems. Thearrangement for supporting and fixing the tanks shall bedesigned for the maximum expected static and dynamicinclinations, as well as the maximum expect
28、ed values ofacceleration, taking into account the ship characteristics andthe position of the tanks (IGF Code 6.5.3).5.3.1 The design of the supporting and fixing arrangementshall include external forces such as green seas, as applicableto the operating environment.5.3.2 If the fuel tank is mounted
29、on a truck chassis, thesecuring system shall be such that the weight of the tank shallnot be carried by the truck wheels and tires, which may besubject to punctures or completely damaged in a fire scenario.5.3.3 Securing arrangements are to be included in the fuelhandling manual (IGF Code 18.2.3).5.
30、3.4 Recognized standard is 49 CFR 393.134 or equivalent.5.4 Tank Consideration on Vessel Strength and StabilityConsideration shall be given to the strength and the effect ofthe portable fuel tanks on the ships stability (IGF Code 6.5.4).5.5 Connections to Ships Fuel Piping SystemsConnections to the
31、ships fuel piping systems shall be made bymeans of approved flexible hoses or other suitable meansdesigned to provide suffcient flexibility (IGF Code 6.5.5).5.5.1 Connections and piping shall be so positioned andarranged that any damage to the fuel piping does not causedamage to the ships fuel conta
32、inment system resulting in anuncontrolled gas discharge.5.5.2 Hoses subject to tank pressure, shall be designed for abursting pressure not less than five times the maximumpressure the hose can be subjected to.5.5.3 The surrounding hull or deck structures shall not beexposed to unacceptable cooling,
33、in case of leakage of fuel.The flexible hose and connections shall have spill protection orshielding around it.5.5.4 An arrangement for purging fuel lines with inert gasshall be provided for the exchange of portable fuel tanks.5.5.5 Each ships fuel piping system connection shall becolor marked and l
34、abelled to indicate its function in accordancewith ISO 14726.5.5.6 Procedure for connecting shall be included in thevessels fuel handling manual (IGF Code 18.2.3).5.6 Spill LimitationArrangements shall be provided tolimit the quantity of fuel spilled in case of inadvertentdisconnection or rupture of
35、 the non-permanent connections(IGF Code 6.5.6).F3285 1825.6.1 Drip trays are to be evaluated by risk assessment as inaccordance with IGF Code 5.10.5.5.6.2 The portable fuel tank and ships fixed fuel supplysystem are to be evaluated by risk assessment for automaticisolation to meet the functional req
36、uirements of IGF Code15.2.2.5.6.3 Risk assessment shall determine the need for drybreak-away coupling/ self-sealing quick release of the portablefuel tank and fixed fuel supply system. The couplings wherefitted shall be of a standard type.5.7 Pressure Relief SystemThe pressure relief system ofportab
37、le tanks shall be connected to a fixed venting system(IGF Code 6.5.7). Connections to the ships fixed ventingsystem shall be made by means of approved flexible hoses orother suitable means designed to provide sufficient flexibility.Standard of hoses shall be in accordance to EN 1474-2: orequivalent.
38、5.8 Control and Monitoring SystemsControl and monitor-ing systems for portable fuel tanks shall be integrated in theships control and monitoring system. Safety system for por-table fuel tanks shall be integrated in the ships safety system(for example, shut-down systems for tank valves, leak/gasdetec
39、tion systems) (IGF Code 6.5.8). This shall include moni-toring of the tanks pressure, liquid level, and temperature inaccordance with IGF Code 15.4.5.9 Safe AccessSafe access to tank connections for thepurpose of inspection and maintenance shall be ensured (IGFCode 6.5.9).5.10 After ConnectionAfter
40、Connection to the Ships FuelPiping System (IGF Code 6.5.10).5.10.1 With the exception of the pressure relief system inIGF Code 6.5.7, each portable tank shall be capable of beingisolated at any time (IGF Code 6.5.10.1);5.10.2 Isolation of one tank shall not impair the availabilityof the remaining po
41、rtable tanks (IGF Code 6.5.10.2); and5.10.3 The tank shall not exceed its filling limits as given inSection 6.8 of the IGF Code (IGF Code 6.5.10.3).5.11 Other Considerations:5.11.1 StackingPortable LNG fuel tanks, if stacked, shallbe designed for the intended purpose with operational consid-erations
42、 taken into account.5.11.2 Grounding ProtectionThe details of the groundingconnection shall be part of the portable tank design. The tankshall be grounded and bonded to the vessel such as by a metalbonding strap attached by bolting to ensure zero electricalpotential before other connections are made
43、.5.11.3 Periodic InspectionA condition assessment of eachportable fuel tank used with a vessels LNG fuel system shallbe conducted as a part of the vessels initial inspection orsurvey, as well as any other normally scheduled annual orperiodic vessel inspection or survey. Due consideration shall begiv
44、en to the applicable multi-modal portable tank inspectionregulations. Coordination of tank inspection at a locationseparate from the vessel shall be at the discretion of the localport state authority.5.11.4 Refilling while onboard shall not be permitted.5.11.5 LNG fuel transfer in an emergency situa
45、tion shall bepermitted as described in the fuel handling manual.5.11.6 The stowage position of the portable tank shall beclearly marked with luminous markings/paint on the deck andstowage area.5.11.7 For tanks on open deck, escape routes and location ofmustering stations, life boats, and life rafts
46、shall not be withinthe fuel tank or piping systems associated hazardous areas.5.11.8 Means of Movement OnboardMethods for liftingof portable tanks onboard or to shore shall be evaluated by riskassessment in IGF Code 4.2. Procedures shall be developedbased on the risk assessment, and shall be include
47、d in the fuelhandling manual.5.11.9 Trailer-Mounted TanksTrailer-mounted tanks shallhave competent personnel to guide the driver operating thevehicle/trailer.Astopper shall be mounted on the ships deck atthe stowage position. The procedure for driving/mountingtrailer-mounted tanks onboard shall be p
48、art of the fuel handlingmanual.5.11.10 The tanks remaining hold time shall be establishedbefore the portable tank is placed onboard. This shall bedocumented and communicated to the person in charge on-board at the time of delivery. Entries in the logbook shallinclude date brought onboard and estimat
49、ed hold time beforethe tanks maximum operating pressure is reached.6. Keywords6.1 LNG; tank, portableASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewe
