SIST EN 14140:2015
(Main)LPG equipment and accessories - Transportable refillable welded steel cylinders for LPG - Alternative design and construction
LPG equipment and accessories - Transportable refillable welded steel cylinders for LPG - Alternative design and construction
This European Standard specifies the minimum requirements for the design, construction and testing during manufacture of transportable refillable welded steel Liquefied Petroleum Gas (LPG) cylinders, of water capacity from 0,5 l up to and including 150 l, exposed to ambient temperatures. It allows alternative design and construction methods to those required in EN 1442. This European Standard applies only to cylinders with a circular cross-section. All pressures are gauge unless otherwise stated. Full review of EN 14140:2003+A1:2006 by the WG and revision in line with the requirements of the ADR/RID and the addition of an environmental annex
Flüssiggas-Geräte und Ausrüstungsteile - Ortsbewegliche, wiederbefüllbare, geschweißte Flaschen aus Stahl für Flüssiggas (LPG) - Alternative Gestaltung und Konstruktion
Diese Europäische Norm legt die Mindestanforderungen an Gestaltung, Konstruktion und Fertigungs-prüfungen von ortsbeweglichen, wiederbefüllbaren, geschweißten Flaschen aus Stahl für Flüssiggas (LPG) mit einem Fassungsraum von 0,5 l bis einschließlich 150 l fest, die Temperaturen von 20 °C bis 65 °C ausgesetzt sind. Sie erlaubt alternative Gestaltungs- und Konstruktionsverfahren im Vergleich zu den Anfor-derungen nach EN 1442, einschließlich beschichteten Flaschen, umformten Flaschen und Heißluftballon-Flaschen.
Diese Europäische Norm gilt ausschließlich für Druckbehälter mit einem runden Querschnitt.
Diese Norm behandelt nicht die Ausrüstung von Flaschen mit Ventilen und anderem betriebsbezogenen Zubehör.
Equipements pour GPL et leurs accessoires - Bouteilles en acier soudé transportables et rechargeables pour gaz de pétrole liquéfié (GPL) - Autres solutions en matière de conception et construction
La présente Norme européenne spécifie les exigences minimales concernant la conception, la construction et les essais lors de la fabrication des bouteilles en acier soudées, transportables et rechargeables pour le gaz de pétrole liquéfié (GPL) d'une capacité en eau comprise entre 0,5 l et 150 l inclus, soumises à une température ambiante allant de - 20 °C à + 65 °C. Elle autorise, en matière de conception et de fabrication, l'utilisation de solutions différentes de celles requises dans l'EN 1442, y compris les bouteilles revêtues, les bouteilles surmoulées et les bouteilles pour ballons à air chaud.
La présente Norme européenne s'applique uniquement aux bouteilles de section transversale circulaire.
La présente norme ne couvre pas l'équipement des bouteilles munies de robinets et autres équipements de service.
Oprema in pribor za utekočinjeni naftni plin (UNP) - Premične, ponovno polnljive varjene jeklenke iz jekla za UNP - Alternativni način konstruiranja in izdelava
Ta evropski standard določa minimalne zahteve za konstruiranje, izdelavo in preskušanje med proizvodnjo premičnih, ponovno polnljivih varjenih jeklenk iz jekla za utekočinjeni naftni plin (LPG) s prostornino vode od 0,5 l do vključno 150 l, ki so izpostavljene temperaturi okolja. Standard dovoljuje alternativne metode konstruiranja in izdelave glede na metode, zahtevane v standardu EN 1442. Ta evropski standard velja samo za jeklenke s krožnim prečnim prerezom. Vsi tlaki so izmerjeni, razen če je določeno drugače. Celovit pregled standarda EN 14140:2003+A1:2006 s strani delovne skupine in revizija v skladu z zahtevami ADR/RID ter dodatek okoljske priloge.
General Information
Relations
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Flüssiggas-Geräte und Ausrüstungsteile - Ortsbewegliche, wiederbefüllbare, geschweißte Flaschen aus Stahl für Flüssiggas (LPG) - Alternative Gestaltung und KonstruktionEquipements pour GPL et leurs accessoires - Bouteilles en acier soudé transportables et rechargeables pour gaz de pétrole liquéfié (GPL) - Autres solutions en matière de conception et constructionLPG equipment and accessories - Transportable refillable welded steel cylinders for LPG - Alternative design and construction23.020.30MHNOHQNHPressure vessels, gas cylindersICS:Ta slovenski standard je istoveten z:EN 14140:2014SIST EN 14140:2015en,fr,de01-februar-2015SIST EN 14140:2015SLOVENSKI
STANDARDSIST EN 14140:2004+A1:20071DGRPHãþD
SIST EN 14140:2015
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 14140
December 2014 ICS 23.020.30 Supersedes EN 14140:2003+A1:2006English Version
LPG equipment and accessories - Transportable refillable welded steel cylinders for LPG - Alternative design and construction
Équipements pour GPL et leurs accessoires - Bouteilles en acier soudé transportables et rechargeables pour gaz de pétrole liquéfié (GPL) - Autres solutions en matière de conception et construction
Flüssiggas-Geräte und Ausrüstungsteile - Ortsbewegliche, wiederbefüllbare, geschweißte Flaschen aus Stahl für Flüssiggas (LPG) - Alternative Gestaltung und KonstruktionThis European Standard was approved by CEN on 9 August 2014.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC 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 translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2014 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 14140:2014 ESIST EN 14140:2015
EN 14140:2014 (E)
2 Contents Page
Foreword .4 Introduction .5 1 Scope .6 2 Normative references .6 3 Terms, definitions and symbols .7 3.1 Terms and definitions .7 3.2 Symbols .9 4 Materials .9 5 Design . 10 5.1 General requirements . 10 5.2 Calculation of cylindrical shell wall thickness . 11 5.3 Design of torispherical and semi-ellipsoidal ends concave to pressure . 11 5.4 Ends of other shapes . 15 5.5 Minimum wall thickness . 15 5.6 Design of openings. 15 5.7 Valve protection . 16 5.8 Non-pressure containing attachments welded to the cylinder . 16 5.9 Resistance against external corrosion . 16 5.10 Over-moulded cylinders . 16 5.11 Hot air balloon cylinders . 17 6 Construction and workmanship . 17 6.1 General . 17 6.2 Environment . 17 6.3 Welding qualification . 17 6.4 Plates and pressed parts . 18 6.5 Welded joints . 18 6.6 Tolerances . 19 6.6.1 Out-of-roundness. 19 6.6.2 Straightness . 19 6.6.3 Verticality . 19 6.7 Closure of openings . 20 6.8 Heat treatment . 20 7 Tests and examinations . 20 7.1 General . 20 7.2 Types of test and evaluation of test results . 21 7.3 Test specimens and related tests and examinations. 22 7.3.1 All cylinders . 22 7.3.2 Two-piece cylinders . 22 7.3.3 Three-piece cylinders . 23 7.3.4 Bung welds . 24 7.3.5 Tensile test . 24 7.3.6 Bend test . 25 7.3.7 Resistance to external corrosion . 28 7.4 NDT . 31 7.4.1 Radiographic examination . 31 7.4.2 Macro examination . 33 SIST EN 14140:2015
EN 14140:2014 (E)
3 7.4.3 Visual examination of the surface of the weld . 33 7.5 Prototype and production batch testing . 33 7.5.1 Burst test under pressure. 33 7.5.2 Fatigue test . 34 7.5.3 Cylinder body integrity impact tests (not required for hot air balloon cylinders) . 35 7.5.4 Drop tests (all cylinders except hot air balloon cylinders) . 39 7.5.5 Drop tests (hot air balloon cylinders only) . 40 8 Technical requirements for type approval . 41 8.1 General . 41 8.2 Extent of testing . 41 8.3 Design type variations . 42 8.3.1 General . 42 8.3.2 Two piece cylinders . 42 8.3.3 Three piece cylinders . 42 9 Initial inspection and tests . 43 9.1 Tests and examinations applicable to all cylinders . 43 9.2 Radiographic examination. 43 9.3 Macro examination . 44 9.4 Examination of bung welding . 44 9.5 Examination of welding of non-pressure containing attachments . 44 9.5.1 Macro examinations . 44 9.5.2 Weld penetration requirement . 44 9.6 Unacceptable imperfections in radiographic or macro examination . 44 9.7 Production pressure test . 44 9.7.1 Procedure . 44 9.7.2 Requirements . 45 9.8 Production batch testing (Mechanical / Burst tests) . 45 9.8.1 Production batch . 45 9.8.2 Inspection lots . 45 9.8.3 Rate of sampling . 45 9.8.4 Verification of conformance with type approval . 47 9.9 Failure to meet mechanical and burst test requirements . 48 9.9.1 General . 48 9.9.2 Mechanical . 48 9.9.3 Burst . 48 9.9.4 Production batch retest . 48 9.9.5 Resubmission of production batch . 48 9.9.6 Additional checks . 49 9.10 Production adhesion test for over-moulded cylinders . 49 9.11 Production water absorption test for over-moulded cylinders . 49 10 Marking . 50 11 Documentation . 51 12 Certification . 51 Annex A (normative)
Additional manufacturers markings . 52 Annex B (informative)
Over-moulded cylinder . 53 Annex C (informative)
Hot Air Balloon Cylinders . 55 C.1 Description . 55 Annex D (informative)
Environmental checklist. 57 Bibliography . 59
SIST EN 14140:2015
EN 14140:2014 (E)
4 Foreword This document (EN 14140:2014) has been prepared by Technical Committee CEN/TC 286 "Liquefied petroleum gas equipment and accessories", the secretariat of which is held by NSAI. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by June 2015 and conflicting national standards shall be withdrawn at the latest by June 2015. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 14140:2003+A1:2006. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association. This European Standard has been submitted for reference into: − the RID [11]; and − the technical annexes of the ADR [12]. NOTE These regulations take precedence over any clause of this European Standard. It is emphasised that RID/ADR/ADN are being revised regularly at intervals of two years which may lead to temporary non-compliances with the clauses of this European Standard. The major changes to this revision include: − restructure of standard; − the addition of requirements for hot air balloon cylinders; − an update on the terminology; − the addition of requirements for over-moulded cylinders; − the addition of the environmental checklist, Annex D. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. SIST EN 14140:2015
EN 14140:2014 (E)
5 Introduction This European Standard calls for the use of substances and procedures that may be injurious to health and/or the environment if adequate precautions are not taken. It refers only to technical suitability: it does not absolve the user from their legal obligations at any stage. It has been assumed in the drafting of this European Standard that the execution of its provisions is entrusted to appropriately qualified and experienced people. This European Standard permits the use of new and higher strength steels and has the potential for cylinders to have a wall thickness thinner than the minimum wall thickness related to diameter, when compared with cylinders in accordance with EN 1442. These changes in technology are justified by requiring a series of performance tests, including impact testing, to demonstrate the adequacy of the calculated pressure thickness for service and transport considerations Reference should also be made to EN 1439 and EN 1440, which requires the cylinder manufacturer to perform additional tests to determine the rejection limits for in-service damage and to include these limits in the documentation for the cylinder. Protection of the environment is a key political issue in Europe and elsewhere around the world. Protection of the environment in this document is understood in a very broad sense. The phrase is used, for example, in relation to the total life-cycle aspects of a product on the environment, including expenditure of energy, and during all phases of its existence, from mining of raw materials, to fabrication, packaging, distribution, use, scrapping, recycling of materials, etc. Annex D comprises an environmental checklist which highlights the clauses of this European Standard that address environmental aspects. It is recommended that manufacturers develop an environmental management policy. For guidance see
EN ISO 14000 series, [6], [7] and [8]]. Provisions need to be restricted to a general guidance. Limit values are specified in national laws. All pressures are gauged unless otherwise stated. NOTE This European Standard requires measurement of material properties, dimensions and pressures. All such measurements are subject to a degree of uncertainty due to tolerances in measuring equipment etc. It may be beneficial to refer to the leaflet “measurement uncertainty leaflet" SP INFO 2000 27 [14]. SIST EN 14140:2015
EN 14140:2014 (E)
6 1 Scope This European Standard specifies the minimum requirements for the design, construction and testing during manufacture of transportable refillable welded steel Liquefied Petroleum Gas (LPG) cylinders, of water capacity from 0,5 l up to and including 150 l, exposed to temperatures of -20 °C to +65 °C. It allows alternative design and construction methods to those required in EN 1442, including coated cylinders, over-moulded cylinders and cylinders for hot air balloons. This European Standard applies only to pressure receptacles with a circular cross-section. This European Standard does not include the equipping of the cylinders with valves and other service equipment. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 1439, LPG equipment and accessories - Procedure for checking LPG cylinders before, during and after filling EN 10028-7, Flat products made of steels for pressure purposes - Part 7: Stainless steels EN 10120, Steel sheet and strip for welded gas cylinders EN 10204:2004, Metallic products - Types of inspection documents EN 10272, Stainless steel bars for pressure purposes EN 14717, Welding and allied processes - Environmental check list EN 14894, LPG equipment and accessories - Cylinder and drum marking EN ISO 643, Steels - Micrographic determination of the apparent grain size (ISO 643) EN ISO 2409:2013, Paints and varnishes - Cross-cut test (ISO 2409:2013) EN ISO 2812-2, Paints and varnishes - Determination of resistance to liquids - Part 2: Water immersion method (ISO 2812-2) EN ISO 3231:1997, Paints and varnishes - Determination of resistance to humid atmospheres containing sulfur dioxide (ISO 3231:1993) EN ISO 4136, Destructive tests on welds in metallic materials - Transverse tensile test (ISO 4136) EN ISO 4624, Paints and varnishes - Pull-off test for adhesion (ISO 4624) EN ISO 5173, Destructive tests on welds in metallic materials - Bend tests (ISO 5173) EN ISO 6520-1, Welding and allied processes - Classification of geometric imperfections in metallic materials - Part 1: Fusion welding (ISO 6520-1) EN ISO 6892-1, Metallic materials - Tensile testing - Part 1: Method of test at room temperature (ISO 6892-1) EN ISO 9227, Corrosion tests in artificial atmospheres - Salt spray tests (ISO 9227) SIST EN 14140:2015
EN 14140:2014 (E)
7 EN ISO 9606-1, Qualification testing of welders - Fusion welding - Part 1: Steels (ISO 9606-1) EN ISO 9712:2012, Non-destructive testing - Qualification and certification of NDT personnel (ISO 9712:2012) EN ISO 11117:2008, Gas cylinders - Valve protection caps and valve guards - Design, construction and tests (ISO 11117:2008) EN ISO 11997-2, Paints and varnishes - Determination of resistance to cyclic corrosion conditions - Part 2: Wet (salt fog)/dry/humidity/UV light (ISO 11997-2) EN ISO 14732, Welding personnel - Qualification testing of welding operators and weld setters for mechanized and automatic welding of metallic materials (ISO 14732) EN ISO 15609-1, Specification and qualification of welding procedures for metallic materials - Welding procedure specification - Part 1: Arc welding (ISO 15609-1) EN ISO 15613, Specification and qualification of welding procedures for metallic materials - Qualification based on pre-production welding test (ISO 15613) EN ISO 15614-1, Specification and qualification of welding procedures for metallic materials - Welding procedure test - Part 1: Arc and gas welding of steels and arc welding of nickel and nickel alloys (ISO 15614-1) EN ISO 17636-1:2013, Non-destructive testing of welds - Radiographic testing - Part 1: X- and gamma-ray techniques with film (ISO 17636-1:2013) EN ISO 17636-2:2013, Non-destructive testing of welds - Radiographic testing - Part 2: X- and gamma-ray techniques with digital detectors (ISO 17636-2:2013) EN ISO 17637, Non-destructive testing of welds - Visual testing of fusion-welded joints (ISO 17637) EN ISO 17639, Destructive tests on welds in metallic materials - Macroscopic and microscopic examination of welds (ISO 17639) EN ISO 19232-1, Non-destructive testing - Image quality of radiographs - Part 1: Determination of the image quality value using wire-type image quality indicators (ISO 19232-1) EN ISO 19232-2, Non-destructive testing - Image quality of radiographs - Part 2: Determination of the image quality value using step/hole-type image quality indicators (ISO 19232-2) 3 Terms, definitions and symbols 3.1 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1.1 liquefied petroleum gas LPG low pressure liquefied gas composed of one or more light hydrocarbons which are assigned to UN 1011, UN 1075, UN 1965, UN 1969 or UN 1978 only and which consists mainly of propane, propene, butane, butane isomers, butene with traces of other hydrocarbon gases 3.1.2 cylinder transportable, pressure receptacle with a water capacity not exceeding150 l SIST EN 14140:2015
EN 14140:2014 (E)
8 3.1.3 over-moulded cylinder a cylinder intended for the carriage of LPG of a water capacity not exceeding 13 l made of a coated steel inner pressure receptacle with an over-moulded protective case made from cellular plastic which is non removable and bonded to the outer surface of the inner receptacle wall 3.1.4 manufacturer manufacturer of the cylinder, unless otherwise specified 3.1.5 yield strength upper yield strength Reh or, for steels that do not exhibit a definite yield, the 0,2 % proof strength Rp0,2 3.1.6 heat treatment solution heat treatment, quenching and artificial or natural ageing that ensures the strength values required 3.1.7 normalised condition resulting from heat treatment to a uniform temperature above the upper critical point (Ac3) of the steel and then cooled under controlled conditions 3.1.8 stress relieved condition resulting from heat treatment in which a finished cylinder is heated to a uniform temperature below the lower critical point (Ac1) of the steel and cooled in a still atmosphere, the object of which is to reduce the residual stresses without altering the metallurgical structure of the steel 3.1.9 production batch group of pressure parts or finished pressure vessels, made consecutively by the same manufacturer using the same manufacturing techniques to the same design, nominal size and material specifications on the same production machinery and subject to the same heat treatment conditions Note 1 to entry: In this context, 'consecutively' need not imply continuous production. 3.1.10 over-moulded casing layer of over-moulded material which gives mechanical protection which, either cannot be removed without destroying it or is only removable with special tools or is bonded to the cylinder wall Note 1 to entry: This definition can be applied to cylinders with over-moulded layers or with separate casings. 3.1.11 protective coating layer of paint or other material applied to the pressure receptacle to provide resistance to external corrosion 3.1.12 hot air balloon cylinder stainless steel cylinder, fitted with a removable structural foam protective cover, which has been approved for aviation purposes (Commission Regulation (EU) No 748/2012, Annex Part 21) 3.1.13 cold-forming forming at temperatures not less than 25 °C below the maximum permissible temperature for stress relieving, in accordance with the applicable material specifications SIST EN 14140:2015
EN 14140:2014 (E)
9 3.1.14 production batch (over-moulded cylinders) 12 months production of cylinders from a single over-moulding company, using inner cylinders manufactured by one manufacturer 3.2 Symbols a Calculated minimum thickness of the cylindrical shell, in millimetres. A Percentage elongation after fracture. b Calculated minimum thickness of the end of the cylinder, in millimetres. C Shape factor for ends (see Table 1 and Figure 2). D Outside diameter of the cylinder as given in the design drawing (see Figure 1), in millimetres. Dp Outside diameter of a bend tests former (see Figure 8), in millimetres. e Actual thickness of the material used, in millimetres. F Energy, in Joules, used in the cylinder body impa
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SLOVENSKI STANDARD
oSIST prEN 14140:2013
01-januar-2013
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LPG equipment and accessories - Transportable refillable welded steel cylinders for LPG
- Alternative design and construction
Flüssiggas-Geräte und Ausrüstungsteile - Ortsbewegliche, wiederbefüllbare,
geschweißte Flaschen aus Stahl für Flüssiggas (LPG) - Alternative Gestaltung und
Konstruktion
Equipements pour GPL et leurs accessoires - Bouteilles en acier soudé transportables et
rechargeables pour gaz de pétrole liquéfié (GPL) - Autres solutions en matière de
conception et construction
Ta slovenski standard je istoveten z: prEN 14140 rev
ICS:
23.020.30 7ODþQHSRVRGHSOLQVNH Pressure vessels, gas
MHNOHQNH cylinders
oSIST prEN 14140:2013 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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oSIST prEN 14140:2013
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oSIST prEN 14140:2013
EUROPEAN STANDARD
DRAFT
prEN 14140 rev
NORME EUROPÉENNE
EUROPÄISCHE NORM
September 2012
ICS 23.020.30 Will supersede EN 14140:2003+A1:2006
English Version
LPG equipment and accessories - Transportable refillable
welded steel cylinders for LPG - Alternative design and
construction
Equipements pour GPL et leurs accessoires - Bouteilles en Flüssiggas-Geräte und Ausrüstungsteile - Ortsbewegliche
acier soudé transportables et rechargeables pour gaz de wiederbefüllbare geschweißte Flaschen aus Stahl -
pétrole liquéfié (GPL) - Autres solutions en matière de Alternative Auslegung und Bau
conception et construction
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee CEN/TC 286.
If this draft becomes a European Standard, CEN members are bound to comply with the CEN/CENELEC Internal Regulations which
stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
This draft European Standard was established by CEN in three official versions (English, French, German). A version in any other language
made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United
Kingdom.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to
provide supporting documentation.
Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2012 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 14140 rev:2012: E
worldwide for CEN national Members.
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Contents Page
Foreword .5
Introduction .6
1 Scope .7
2 Normative references .7
3 Terms, definitions and symbols .8
3.1 Terms and definitions .8
3.2 Symbols .9
4 Materials . 10
5 Design . 10
5.1 General requirements . 10
5.2 Calculation of cylindrical shell thickness . 11
5.3 Design of torispherical and semi-ellipsoidal ends concave to pressure . 11
5.4 Ends of other shapes . 15
5.5 Minimum wall thickness . 15
5.6 Design of openings. 15
5.7 Valve protection . 16
5.8 Non-pressure containing attachments . 16
6 Construction and workmanship . 16
6.1 Environment . 16
6.2 Welding qualification . 16
6.3 Plates and pressed parts . 17
6.4 Welded joints . 17
6.5 Tolerances . 18
6.5.1 Out-of-roundness. 18
6.5.2 Straightness . 18
6.5.3 Verticality . 18
6.6 Closure of openings . 19
6.7 Heat treatment . 19
7 Tests and examinations . 19
7.1 General . 19
7.2 Types of test and evaluation of test results . 20
7.3 Test specimens and related tests and examinations. 20
7.3.1 Two-piece cylinders . 20
7.3.2 Three-piece cylinders . 21
7.3.3 Bung welds . 22
7.4 Tensile test . 22
7.4.1 Parent metal . 22
7.4.2 Welds . 22
7.5 Bend test . 23
7.5.1 Procedure . 23
7.5.2 Requirements . 24
7.6 Burst test under hydraulic pressure . 24
7.6.1 Procedure . 24
7.6.2 Requirements . 26
7.7 Pressure test . 26
7.7.1 Procedure . 26
7.7.2 Requirements . 26
7.8 Radiographic examination . 27
7.8.1 Procedure . 27
2
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7.8.2 Assessment . 27
7.8.3 Requirements . 28
7.9 Macro examination . 28
7.9.1 Procedure . 28
7.9.2 Requirement . 28
7.10 Visual examination of the surface of the weld . 28
7.10.1 Procedure . 28
7.10.2 Requirements . 28
7.11 Fatigue test . 28
7.11.1 Procedure . 28
7.11.2 Requirements . 29
7.12 Resistance to external corrosion . 29
7.12.1 Coated cylinders . 29
7.12.2 Un-coated cylinders . 31
7.12.3 Protected cylinders . 31
7.13 Cylinder body integrity impact tests . 32
7.13.1 General . 32
7.13.2 Flat surface impact test . 32
7.13.3 Edge impact test . 34
7.14 Drop tests . 36
7.14.1 Procedure . 36
7.14.2 Requirement . 36
8 Technical requirements for type approval . 37
8.1 Extent of testing . 37
8.2 Cylinder types . 37
8.2.1 Two piece cylinders . 37
8.2.2 Three piece cylinders . 38
9 Production testing and examination requirements . 38
9.1 Tests and examinations applicable to all cylinders . 38
9.2 Radiographic examination. 39
9.3 Macro examination . 39
9.4 Examination of bung welding . 39
9.5 Examination of welding of non-pressure containing attachments . 39
9.5.1 Macro examinations . 39
9.5.2 Weld penetration requirement . 39
9.6 Unacceptable imperfections in radiographic or macro examination . 40
9.7 Batch testing (Mechanical / Burst tests) . 40
9.7.1 Batch . 40
9.7.2 Inspection lots . 40
9.7.3 Rate of sampling . 40
9.8 Failure to meet mechanical and burst test requirements . 43
9.8.1 Mechanical . 43
9.8.2 Burst . 43
9.8.3 Batch retest . 43
9.8.4 Resubmission of batch . 43
9.9 Production over-moulded protective case adhesion test for protected cylinder . 44
10 Marking . 44
11 Certificate . 45
Annex A (normative) Additional manufacturers markings . 46
Annex B (normative) Protected cylinder . 47
B.1 General . 47
B.1.1 Design . 47
B.1.2 Environment . 47
B.2 Adhesion test procedure for the over-moulded protective case . 48
B.2.1 Preparation . 48
B.2.2 Breaking strength . 49
3
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B.2.3 Results . 49
B.2.4 Test report . 49
Annex C (informative) Environmental checklist . 50
Bibliography . 51
4
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oSIST prEN 14140:2013
prEN 14140:2012 (E)
Foreword
This document (prEN 14140:2012) has been prepared by Technical Committee CEN/TC 286 “Liquefied
petroleum gas equipment and accessories”, the secretariat of which is held by NSAI.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 14140:2003+A1:2006.
This European Standard has been submitted for reference into:
the RID [9]; and
the technical annexes of the ADR [10].
NOTE These regulations take precedence over any clause of this European Standard. It is emphasised that
RID/ADR/ADN are being revised regularly at intervals of two years which may lead to temporary non-compliances with the
clauses of this European Standard.
The major changes to this revision include:
an update on the terminology;
the addition of requirements for protected cylinders;
the addition of the environmental checklist, Annex C
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Introduction
This European Standard calls for the use of substances and procedures that may be injurious to health and/or
the environment if adequate precautions are not taken. It refers only to technical suitability: it does not absolve
the user from their legal obligations at any stage.
It has been assumed in the drafting of this European Standard that the execution of its provisions is entrusted
to appropriately qualified and experienced people.
This standard permits the use of new and higher strength steels and has the potential for cylinders to be
thinner than the minimum thickness related to diameter, compared with cylinders in accordance with EN 1442.
These changes in technology are justified by requiring a series of performance tests, including impact testing,
to demonstrate the adequacy of the calculated pressure thickness for service and transport considerations.
NOTE 1 Reference should also be made to EN 1439, which requires the cylinder manufacturer to perform additional
tests to determine the rejection limits for in-service damage and to include these limits in the documentation for the
cylinder.
Protection of the environment is a key political issue in Europe and elsewhere around the world. Protection of
the environment in this document is understood in a very broad sense. The phrase is used, for example, in
relation to the total life-cycle aspects of a product on the environment, including expenditure of energy, and
during all phases of its existence, from mining of raw materials, to fabrication, packaging, distribution, use,
scrapping, recycling of materials, etc. Annex C comprises an environmental checklist which highlights the
clauses of this European Standard that address environmental aspects.
It is recommended that manufacturers develop an environmental management policy. For guidance see
ISO 14000 series, [4], [5] and [6].
Provisions need to be restricted to a general guidance. Limit values are specified in national laws.
It has been assumed in the drafting of this European Standard that the execution of its provisions is entrusted
to appropriately qualified and experienced people.
All pressures are gauged unless otherwise stated.
NOTE 2 This European Standard requires measurement of material properties, dimensions and pressures. All such
measurements are subject to a degree of uncertainty due to tolerances in measuring equipment etc. It may be beneficial
to refer to the leaflet “measurement uncertainty leaflet" SP INFO 2000 27 [13].
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1 Scope
This European Standard specifies the minimum requirements for the design, construction and testing during
manufacture of transportable refillable welded steel Liquefied Petroleum Gas (LPG) cylinders, of water
capacity from 0,5 l up to and including 150 l, exposed to ambient temperatures. It allows alternative design
and construction methods to those required in EN 1442.
This European Standard applies only to cylinders with a circular cross-section.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated references,
the latest edition of the referenced document (including any amendments) applies.
EN 287-1, Qualification test of welders Fusion welding: Steels
EN 462-1, Non-destructive testing - Image quality of radiographs - Part 1: Image quality indicators (wire type) -
Determination of image quality value
EN 462-2, Non-destructive testing - Image quality of radiographs - Part 2: Image quality indicators (step/hole
type) - Determination of image quality value
EN 473:2008, Non-destructive testing Qualification and certification of NDT personnel General principles
EN 1321, Destructive tests on welds in metallic materials Macroscopic and microscopic examination of
welds
EN 1418, Welding personnel Approval testing of welding operators for fusion welding and resistance weld
setters for fully mechanized and automatic welding of metallic materials
EN 1435:1997, Non-destructive examination of welds Radiographic examination of welded joints
EN 1439, LPG equipment and accessories Procedure for checking LPG cylinders before, during and after
filling
EN 10028-7, Flat products made of steels for pressure purposes Part 7: Stainless steels
EN 10120, Steel sheet and strip for welded gas cylinders
EN 10204:2004, Metallic products Types of inspection documents
EN 14717, Welding and allied processes - Environmental check list
EN 14894, LPG equipment and accessories Cylinder and drum marking
EN ISO 643, Steels Micrographic determination of the apparent grain size (ISO 643)
EN ISO 2409:2007, Paints and varnishes Cross-cut test (ISO 2409)
EN ISO 2812-2, Paints and varnishes - Determination of resistance to liquids - Part 2: Water immersion
method (ISO 2812-2)
EN ISO 3231:1997, Paints and varnishes Determination of resistance to humid atmospheres containing
sulfur dioxide (ISO 3231)
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EN ISO 4136, Destructive tests on welds in metallic materials Transverse tensile test (ISO 4136)
EN ISO 4624, Paints and varnishes Pull-off test for adhesion (ISO 4624)
EN ISO 5173, Destructive tests on welds in metallic materials Bend tests (ISO 5173)
EN ISO 6520-1, Welding and allied processes - Classification of geometric imperfections in metallic materials
- Part 1: Fusion welding (ISO 6520-1)
EN ISO 6892-1, Metallic materials Tensile testing Part 1: Method of test at room temperature (ISO 6892-
1)
EN ISO 9227, Corrosion tests in artificial atmospheres Salt spray tests (ISO 9227)
EN ISO 11117:2008, Gas cylinders Valve protection caps and valve guards Design, construction and
tests (ISO 11117)
EN ISO 11997-2, Paints and varnishes Determination of resistance to cyclic corrosion conditions Part 2:
Wet (salt fog)/dry/humidity/UV light (ISO 11997-2)
EN ISO 17637, Non-destructive testing of welds Visual testing of fusion-welded joints (ISO 17637)
EN ISO 15609-1, Specification and qualification of welding procedures for metallic materials - Welding
procedure specification - Part 1: Arc welding (ISO 15609-1)
EN ISO 15613, Specification and qualification of welding procedures for metallic materials Qualification
based on pre-production welding test (ISO 15613)
EN ISO 15614-1, Specification and qualification of welding procedures for metallic materials - Welding
procedure test - Part 1: Arc and gas welding of steels and arc welding of nickel and nickel alloys (ISO 15614-
1)
3 Terms, definitions and symbols
3.1 Terms and definitions
For the purposes of this European Standard, the following terms and definitions apply.
3.1.1
liquefied petroleum gas
LPG
low pressure liquefied gas composed of one or more light hydrocarbons which are assigned to UN 1011,
UN 1075, UN 1965, UN 1969 or UN 1978 only and which consists mainly of propane, propene, butane,
butane isomers, butene with traces of other hydrocarbon gases
3.1.2
cylinder
transportable, refillable pressure receptacle with a water capacity from 0,5 l up to and including 150 l
3.1.3
protected cylinder
steel cylinder with an over-moulded protective case which is which is non-removable and bonded to the
cylinder wall giving protection against impact and external corrosion
3.1.4
manufacturer
manufacturer of the cylinder, unless otherwise specified
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3.1.5
yield stress
upper yield strength R for carbon steels or 0,2 % proof stress (non-proportional elongation), R , for steels
eh p0,2
that do not exhibit a defined yield, and 1 % proof stress for stainless steels, R
p1,0
3.1.6
heat treatment
solution heat treatment, quenching and artificial or natural ageing that ensures the strength values required
3.1.7
normalised
condition resulting from heat treatment to a uniform temperature above the upper critical point (Ac3) of the
steel and then cooled under controlled conditions
3.1.8
stress relie
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