SIST EN 12205:2002

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Ortsbewegliche Gasflaschen - Metallische EinwegflaschenBouteilles a gaz transportables - Bouteilles a gaz métalliques non rechargeablesTransportable gas cylinders - Non-refillable metallic gas cylinders23.020.30MHNOHQNHPressure vessels, gas cylindersICS:Ta slovenski standard je istoveten z:EN 12205:2001SIST EN 12205:2002en01-maj-2002SIST EN 12205:2002SLOVENSKI
STANDARD



SIST EN 12205:2002



EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 12205May 2001ICS 23.020.30English versionTransportable gas cylinders - Non refillable metallic gascylindersBouteilles à gaz transportables - Bouteilles à gazmétalliques non rechargeablesOrtsbewegliche Gasflaschen - Metallische EinwegflaschenThis European Standard was approved by CEN on 8 March 2001.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Management Centre or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2001 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 12205:2001 ESIST EN 12205:2002



Page 2EN 12205:2001ContentspageForeword.3Introduction.41Scope.42Normative references.43Terms, definitions and symbols.54Requirements.65Design.96Construction and workmanship.117Tests.158Inspection.189Markings.18Annex A (normative)
Prototype and production testing.20Bibliography.22SIST EN 12205:2002



Page 3EN 12205:2001ForewordThis European Standard has been prepared by Technical Committee CEN/TC 23 "Transportable gas cylinders",the secretariat of which is held by BSI.This European Standard shall be given the status of a national standard, either by publication of an identical text orby endorsement, at the latest by November 2001, and conflicting national standards shall be withdrawn at the latestby November 2001.This European Standard has been prepared under a mandate given to CEN by the European Commission and theFree Trade Association, and supports the objectives of the Framework Directives on Transport of DangerousGoods.This Standard has been submitted for reference into the RID and/or the technical annexes of the ADR. Therefore in thiscontext the Standards listed in the normative references and covering basic requirements of the RID/ADR notaddressed within the present Standard are normative only when the Standards themselves are referred to in the RIDand/or in the technical annexes of the ADR.According to the CEN/CENELEC Internal Regulations, the national standards organizations of the followingcountries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland,France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden,Switzerland and the United Kingdom.SIST EN 12205:2002



Page 4EN 12205:2001IntroductionThe purpose of this standard is to provide a specification for the design, manufacture, inspection and approval of nonrefillable metallic gas cylinders. The specifications given are based on knowledge of, and experience with, materials,design requirements, manufacturing processes and control during manufacture, of cylinders in common use in thecountries of the CEN members.Users of cylinders manufactured to this Standard should ensure that they are aware of all relevant regulationsconserning the gases that may be filled into non-refillable cylinders (for example see common position 19/1999 of theCouncil of the EU which specifies that substances which are harmful to the ozone layer shall not be put on the marketin disposable containers except for essential uses). Where a cylinder is used for a harmful gas care should be taken toensure that it is disposed of in a manner that is in accordance with relevant regulations, is safe and meetsenvironmental requirements.1 ScopeThis European Standard specifies minimum requirements for the material, design, construction and workmanship,manufacturing processes and tests at manufacture of non-refillable metallic gas cylinders of welded, brazed orseamless construction used for compressed, liquefied and dissolved gases.This Standard is not applicable to cartridges/aerosol dispensers and spherical containers.NOTEFor cartridges, see EN 4172 Normative referencesThis European Standard incorporates, by dated or undated reference, provisions from other publications. Thesenormative references are cited at the appropriate places in the text and the publications are listed hereafter. Fordated references, subsequent amendments to or revisions of any of these publications apply to this EuropeanStandard only when incorporated in it by amendment or revision. For undated references the latest edition of thepublication referred to applies (including amendments).EN 287-1, Approval testing of welders — Fusion welding — Part 1: SteelsEN 287-2, Approval testing of welders — Fusion welding — Part 2: Aluminium and aluminium alloysEN 288-1, Specification and qualification of welding procedures for metallic materials — Part 1: General rules for fusionweldingEN 1800: 1998, Transportable gas cylinders — Acetylene cylinders — Basic requirements and definitionsEN 1964-1: 1999, Transportable gas cylinders — Specification for the design and construction of refillable transportableseamless steel gas cylinders of capacity from 0,5 litres up to and including 150 litres — Part 1: Seamless steel with amaximum Rm value of 1 100MPaprEN 1964-2: 1998, Transportable gas cylinders — Specification for the design and construction of refillabletransportable seamless steel gas cylinders of capacity from 0,5 litres up to and including 150 litres — Part 2: Tensilestrength (Rmmax) > 1 100N/mm2EN 1964-3: 2000, Transportable gas cylinders — Specification for the design and construction of refillable transportableseamless steel gas cylinders of capacity from 0,5 litres up to 150 litres — Part 3: Stainless steel cylindersSIST EN 12205:2002



Page 5EN 12205:2001EN 1975: 1999, Transportable gas cylinders — Specification and for the design and construction of refillabletransportable seamless aluminium alloy gas cylinders of capacity from 0,5 litre up to 150 litreEN 10002-1, Metallic materials — Tensile testing — Part 1: Method of test (at ambient temperature)EN 10088-1, Stainless steels — Part 1: List of stainless steelsEN 10120, Steel sheet and strip for welded gas cylindersEN 10130, Cold rolled low carbon steel flat products for cold forming — Technical delivery conditionsEN 12862, Transportable gas cylinders — Specification for the design and construction of refillable transportablewelded aluminium alloy gas cylindersEN 13133, Brazing — Brazer approvalEN 13134, Brazing — Procedure approvalEN ISO 3166-1, Codes for the representation of names of countries and their subdivisions — Part 1: Country Codes(ISO 3166-1:1997)EN ISO 11114-1: 1997, Transportable gas cylinders — Compatibility of cylinder and valve materials with gas contents— Part 1: Metallic materials (ISO 11114-1:1997)EN ISO 11120: 1999, Gas cylinders — Refillable seamless steel pressure vessels for compressed gas transport ofwater capacity between 150 L and 3000 L — Design and testing (ISO 11120:1999)EN ISO 13340, Transportable gas cylinders — Cylinder valves for non-refillable cylinders — Specification andprototype testing (ISO 13340:2001)ISO 4706, Refillable welded steel gas cylinders3 Terms, definitions and symbolsFor the purposes of this European Standard the following terms, definitions and symbols apply.3.1 Terms and definitions3.1.1non refillable cylindercylinder which may be filled only once3.1.2batchquantity of completed and pressure tested cylinders of the same design, prototype design, water capacity, material,heat treatment (if any) and manufacturing process, made successively during one production shift of up to 12 hours3.1.3burst pressurehighest pressure reached in a cylinder during the burst test3.1.4material certificatedocument, issued by the material manufacturer, which states the chemical analysis, mechanical properties, heattreatment, processing techniques or other properties/features if required3.1.5cylindrical shellthe portion of the cylinder, excluding the heads (ends), which is parallel to the centreline axis of the cylinderSIST EN 12205:2002



Page 6EN 12205:20013.1.6heads (ends)the portions of a cylinder which are not parallel to the centreline axis of the cylinder3.1.7maximum permissible operating pressurehighest pressure permitted to be developed during service. It is the developed pressure at 65 °C3.1.8test pressurerequired pressure applied during the pressure test3.1.9working pressuresettled pressure at a uniform temperature of 288 K (15 C) for a full gas cylinder3.1.10water capacitythe capacity of the empty cylinder when filled with water3.1.11design stress factor (F) (variable)the ratio of equivalent wall stress at test pressure (ph) to guaranteed minimum yield stress (Re)3.2 Symbolsa-Calculated minimum thickness in millimetres of the cylinder shell.D-Nominal outside diameter of the cylinder, in millimetres.F-Design stress factor (variable).ph-Test pressure, in bar1) above atmospheric pressurepms-Maximum permissible operating pressure, in bar1) above atmospheric pressure.Re-Minimum guaranteed value of yield stress in megapascals for the finished cylinder in the cylindrical part of thecylinder.Rg-Minimum guaranteed value of the tensile strength in megapascals for the finished cylinder.V-Water capacity of the cylinder, in litres.4 Requirements4.1 GeneralCylinders conforming to this Standard shall meet the following requirements:a)The maximum permissible operating pressure (pms) shall not exceed 250 bar;b)The product of the maximum permissible operating pressure (pms) and the water capacity (V) shall not exceed1 000 bar·litres;c)Where the maximum permissible operating pressure (pms) exceeds 35 bar, the water capcity (V) shall notexceed 5 litres;
1)
1bar
105 Pa
0,1MPaSIST EN 12205:2002



Page 7EN 12205:2001d)Cylinders for service with toxic gases or toxic gas mixtures shall have water capacity (V) not exceeding 2 litres.Cylinders having a maximum permissible operating pressure (pms) or water capacity (V) exceeding any of the limitsgiven in a), b), c) or d) above shall not be manufactured in accordance with this standard.NOTEFor such cylinders, see the appropriate refillable cylinder standard (e.g. EN 1964-1: 1999, EN 1975: 1999)Cylinders for service with dissolved acetylene shall incorporate an appropriate porous mass. The completedcylinder containing the porous mass shall meet the requirements of EN 1800: 1998.4.2 Materials4.2.1 General4.2.1.1Non-refillable gas cylinders shall be made of carbon or low alloy carbon steels, austenitic stainlesssteel, aluminium or aluminium alloys. The materials used are specified by type (see 4.2.2) and chemical compositions(see 4.2.3). Materials shall not present defects which are prejudicial to their use.4.2.1.2The cylinder manufacturer shall specify the chemical and mechanical requirements to the materialsupplier.4.2.1.3The cylinder manufacturer shall obtain a Material Certificate from the material supplier. The certificateshall confirm conformance to the material specification. In the case of steels, this shall include the Charpy value at— 20 °C (or lower if specified). Charpy values shall correspond with those specified in the appropriate refillablestandard, as follows:- for seamless steel, EN 1964-1: 1999, prEN 1964-2: 1998, EN 1964-3: 2000 or EN ISO 11120: 1999.NOTEOther Standards for the design and construction of cylinders are in preparation and should be conformed to, asappropriate, when published.4.2.1.4The cylinder manufacturer shall verify that the materials are in accordance with the cylindermanufacturer's specifications.4.2.1.5All materials used in the construction of the pressure containing parts of the cylinder shall be identifiedby the cast number/code.4.2.1.6The steels shall be suitable for use at the minimum operating temperature or — 20 °C, whichever islower.4.2.1.7Materials used for cylinder manufacture shall be compatible with the intended gas service, e.g.corrosive gases, embrittling gases, as specified in EN ISO 11114-1: 1997.4.2.2 Type4.2.2.1 Carbon and low-alloy carbon steels4.2.2.1.1The steel used for the fabrication of gas cylinders shall be made in an electric furnace or by the basicoxygen process, shall have non-ageing properties and shall be killed.4.2.2.1.2Carbon steel for cold deep drawn welded cylinders shall be in accordance with EN 10120 or EN 10130having non-ageing properties, drawing quality, processed free of stretcher strain and shall have an aluminiumcontent in excess of 0,01 %. The chemical composition shall meet the requirements of 4.2.3.1.1.4.2.2.1.3Carbon steel for welded cylinders other than cold deep drawn shall have a chemical composition whichmeets the requirements of 4.2.3.1.2. The maximum tensile strength shall not exceed 700 MPa.4.2.2.1.4Carbon steel for cylinders made of seamless steel tubing with integrally formed ends, hot drawn andfinished shall have a chemical composition which meets the requirements of 4.2.3.1.3.SIST EN 12205:2002



Page 8EN 12205:20014.2.2.1.5Low alloy carbon steels shall conform to EN 1964-1: 1999 or ISO 4706.4.2.2.2 Aluminium and aluminium alloy4.2.2.2.1Aluminium alloys with a minimum guaranteed value of the tensile strength greater than 500 MPa shallnot be used.4.2.2.2.2Aluminium and aluminium alloys shall have a chemical composition which meets the requirements of4.2.3.2.4.2.2.2.3Aluminium and aluminium alloys for welded cylinders shall meet the requirements of EN 12862.4.2.2.2.4Aluminium and aluminium alloys for seamless cylinders shall meet the requirements of EN 1975: 1999.4.2.2.3 Austenitic stainless steels4.2.2.3.1For austenitic stainless steels, the maximum tensile strength shall not exceed 800 MPa.4.2.2.3.2The cylinder manufacturer shall take into consideration the loss of material strength within the heataffected zone of any weld.4.2.2.3.3Austenitic stainless steels for all types of cylinder shall be in accordance with EN 10088-1.4.2.2.3.4The chemical composition shall meet the requirements of 4.2.3.3.4.2.3 Chemical compositions4.2.3.1 Carbon and low-alloy carbon steels4.2.3.1.1Carbon steels to EN 10120 and EN 10130, having non-ageing properties, drawing quality for cold deepdrawn welded cylinders, shall have the following chemical composition limits:Mass %Carbon0,12MaximumManganese0,50MaximumPhosphorous0,025MaximumSulphur0,025MaximumSIST EN 12205:2002



Page 9EN 12205:20014.2.3.1.2Carbon steel for welded cylinders other than cold deep drawn shall have the following chemicalcomposition limits:Mass %Carbon0,25MaximumManganese0,50MaximumPhosphorus0,025MaximumSulphur0,025Maximum4.2.3.1.3Carbon steel for cylinders made of seamless steel tubing with integrally formed ends, hot drawn andfinished shall have the following chemical composition limits:Mass %Carbon0,55MaximumManganese1,2MaximumPhosphorus0,025MaximumSulphur0,025Maximum4.2.3.1.4Low alloy carbon steels shall conform to 4.2.2.1.5.4.2.3.2 Aluminium and aluminium alloysAluminium and aluminium alloys may be used to produce gas cylinders provided that they meet all requirements of thisstandard and have maximum lead and bismuth contents not exceeding 30 ppm.NOTEA list of registered alloys is maintained by the Aluminium Association Inc1) entitled ‘Registration Record ofInternational Alloy Designations and Chemical Composition Limits for Wrought Aluminium and Wrought Aluminium Alloys’.4.2.3.3 Austenitic stainless steelsAustenitic stainless steel shall meet the requirements of EN 10088-1.5 Design5.1 General provisions5.1.1The calculation of the cylindrical wall thickness of the pressure containing parts shall be related to the yieldstress (Re) of the material to ensure elastic behaviour.5.1.2The internal pressure upon which the calculation of the cylindrical wall thickness is based shall be the testpressure (ph).
1) Aluminium Association Inc., 900 19th Street N.W., Washington D.C., 20006-2168, U.S.A.SIST EN 12205:2002



Page 10EN 12205:20015.1.3The design of the heads shall be such that the pressure containing parts, when subjected to the testpressure (ph), shall not show any permanent deformation.5.2 Calculation of pressure containing partsThe minimum thickness of the cylindrical shell of the pressure containing parts shall not be less than any of the threevalues determined in a), b) or c) below:a)The minimum thickness of the cylindrical shell shall be not less than that necessary for the minimum burstpressure to be greater than two times the test pressure (ph) and such that the requirements of 7.2.4 and 7.3 aremet.b)The minimum thickness of the cylindrical shell shall be not less than that calculated by the modified Lamé-VonMises formula,
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