Cryogenic vessels - Large transportable non-vacuum insulated vessels - Part 2: Design, fabrication, inspection and testing

This European Standard specifies requirements for the design, fabrication, inspection and testing of large transportable non vacuum insulated cryogenic vessels of more than 1000 l volume, which are permanently (fixed tanks) or not permanently (demountable tanks) attached to a vehicle, for carriage by road. However, it can be used for other mode of transport providing the specific regulations/requirements are complied with.
This European Standard applies to large transportable non vacuum insulated cryogenic vessels for fluids specified in EN  14398-1 and does not apply to vessels designed for toxic fluids.
This European Standard does not include the general vehicle requirements e.g. running gear, brakes, lighting etc. that shall be in accordance with the relevant standards/regulations.

Kyo-Behälter - Große ortsbewegliche, nicht vakuum-isolierte Behälter - Teil 2: Bemessung, Herstellung und Prüfung

Récipients cryogéniques - Grands récipients transportables non isolés sous vide - Partie 2: Conception, fabrication, inspections et essais

La présente Norme européenne spécifie des exigences en matière de conception, fabrication, contrôle et essais de
grands récipients cryogéniques transportables non isolés sous vide d’un volume supérieur à 1 000 l, fixés sur un
véhicule de manière permanente (réservoirs fixes) ou non (réservoirs démontables) pour le transport routier. Elle
peut cependant être utilisée pour d’autres modes de transport à condition que soient respectées les lois et
exigences correspondantes.
La présente Norme européenne s'applique aux grands récipients cryogéniques transportables non isolés sous vide
pour les fluides spécifiés dans l’EN 14398-1 et ne s'applique pas à des récipients prévus pour contenir des
fluides toxiques.
La présente Norme européenne ne couvre pas les exigences générales relatives aux véhicules, par exemple, les
organes de roulement, les freins, les feux, etc., qui doivent être conformes aux normes/règlements correspondants.

Kriogene posode - Velike premične, vakuumsko neizolirane posode - 2. del: Konstruiranje, izdelava, kontrola in preskus

General Information

Status
Published
Publication Date
06-Apr-2008
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
01-Apr-2008
Due Date
06-Jun-2008
Completion Date
07-Apr-2008

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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Cryogenic vessels - Large transportable non-vacuum insulated vessels - Part 2: Design, fabrication, inspection and testingRécipients cryogéniques - Grands récipients transportables non isolés sous vide - Partie 2: Conception, fabrication, inspections et essaisKyo-Behälter - Große ortsbewegliche, nicht vakuum-isolierte Behälter - Teil 2: Bemessung, Herstellung und PrüfungTa slovenski standard je istoveten z:EN 14398-2:2003+A2:2008SIST EN 14398-2:2004+A2:2008en,fr23.020.40ICS:SLOVENSKI
STANDARDSIST EN 14398-2:2004+A2:200801-junij-2008







EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 14398-2:2003+A2
March 2008 ICS 23.020.40 Supersedes EN 14398-2:2003English Version
Cryogenic vessels - Large transportable non-vacuum insulated vessels - Part 2: Design, fabrication, inspection and testing
Récipients cryogéniques - Grands récipients transportables non isolés sous vide - Partie 2: Conception, fabrication, inspections et essais
Kyo-Behälter - Große ortsbewegliche, nicht vakuum-isolierte Behälter - Teil 2: Bemessung, Herstellung und Prüfung This European Standard was approved by CEN on 10 July 2003 and includes Corrigendum 1 issued by CEN on 23 August 2006, Amendment 1 approved by CEN on 6 October 2006 and Amendment 2 approved by CEN on 7 February 2008.
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 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 Management Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36
B-1050 Brussels © 2008 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 14398-2:2003+A2:2008: E



EN 14398-2:2003+A2:2008 (E) 2 Contents page Foreword.5 1 Scope.6 2 Normative references.6 3 Terms, definitions and symbols.7 3.1 Terms and definitions.7 3.2 Symbols.8 4 Design.9 4.1 Design options.9 4.1.1 General.9 4.1.2 Design by calculation.9 4.1.3 Design by calculation and pressure strengthening.9 4.1.4 Design by calculation supplemented with experimental methods.10 4.2 Common design requirements.10 4.2.1 General.10 4.2.2 Design specification.10 4.2.3 Design loads.11 4.2.4 Fatigue.13 4.2.5 Corrosion allowance.13 4.2.6 Inspection openings.13 4.2.7 Pressure relief.14 4.2.8 Valves.14 4.2.9 Insulation.14 4.2.10 Degree of filling.14 4.2.11 Electrical continuity.15 4.3 Design by calculation.15 4.3.1 General.15 4.3.2 Vessel.15 4.3.3 Attachments.16 4.3.4 Piping and accessories.16 4.3.5 Calculation formulae.17 4.3.6 Calculations for operating loads.25 5 Fabrication.53 5.1 General.53 5.2 Cutting.53 5.3 Cold forming.54 5.3.1 Austenitic stainless steel.54 5.3.2 Ferritic steel.54 5.4 Hot forming.55 5.4.1 General.55 5.4.2 Austenitic stainless steel.55 5.4.3 Ferritic steel.55 5.5 Manufacturing tolerances.55 5.5.1 Plate alignment.55 5.5.2 Thickness.57 5.5.3 Dished ends.57 5.5.4 Cylinders.57 5.6 Welding.60 5.6.1 General.60 5.6.2 Qualification.60 5.6.3 Temporary attachments.60 5.6.4 Welded joints.60 5.7 Non-welded joints.61



EN 14398-2:2003+A2:2008 (E) 3 6 Inspection and testing.61 6.1 Quality plan.61 6.1.1 Inspection stages during manufacture of a vessel.61 6.1.2 Additional inspection stages during manufacture of a large transportable cryogenic vessel.62 6.2 Production control test plates.62 6.2.1 Requirements.62 6.2.2 Extent of testing.62 6.3 Non-destructive testing.63 6.3.1 General.63 6.3.2 Extent of examination for surface imperfections.63 6.3.3 Extent of examination for volumetric imperfections.63 6.3.4 Acceptance levels.64 6.4 Rectification.65 6.5 Pressure testing.66 Annex A (informative)
Elastic stress analysis.67 A.1 General.67 A.2 Terminology.67 A.2.1 Stress intensity.67 A.2.2 Gross structural discontinuity.68 A.2.3 Local structural discontinuity.68 A.2.4 Normal stress.68 A.2.5 Shear stress.68 A.2.6 Membrane stress.68 A.2.7 Primary stress.69 A.2.8 Primary local membrane stress.69 A.2.9 Secondary stress.69 A.2.10 Peak stress.69 A.3 Limit for longitudinal compressive general membrane stress.69 A.4 Stress categories and stress limits for general application.70 A.4.1 General.70 A.4.2 General primary membrane stress category.70 A.4.3 Local primary membrane stress category.70 A.4.4 General or local primary membrane plus primary bending stress category.70 A.4.5 Primary plus secondary stress category.70 A.4.6 Thermal stress.70 A.5 Specific criteria, stress categories and stress limits for limited application.71 A.5.1 General.71 A.5.2 Attachments and supports.71 A.5.3 Nozzles and openings.71 A.5.4 Additional stress limits.72 Annex B (normative)
Additional requirements for 9 % Ni steel.76 B.1 Introduction.76 B.2 Specific requirements.76 Annex C (normative)
Pressure strengthening of vessels from austenitic stainless steels.78 C.1 Introduction.78 C.2 Scope.78 C.3 Definitions and units of measurement.78 C.4 Materials.79 C.5 Design.80 C.5.1 General.80 C.5.2 Design for internal pressure.80 C.6 Manufacturing and inspection.83 C.6.1 Strengthening procedure.83 C.6.2 Procedure record.83 C.6.3 Welding.83 C.6.4 Pressure vessel drawing.84 C.6.5 Data plate.84 C.7 Comments.84 C.7.1 Strengthening theory.84 C.7.2 Work-hardened material.86



EN 14398-2:2003+A2:2008 (E) 4 C.7.3 Derivation of formulae.86 C.7.4 Deformations at strengthening.87 Annex D (informative)
Specific weld details.90 D.1 Field of application.90 D.2 Weld detail.90 D.2.1 Joggle joint.90 D.2.2 Intermediate ends.90 D.2.3 Backing strip.91 D.2.4 End plate closure.91 D.2.5 Non full penetration nozzle weld.91 D.2.6 Non continuous fillet weld on attachments.91 D.3 Oxygen service requirements.91 Annex E (normative)
Increased material property for austenitic stainless steel.95 Bibliography.96



EN 14398-2:2003+A2:2008 (E) 5 Foreword This document (EN 14398-2:2003+A2:2008) has been prepared by Technical Committee CEN/TC 268 “Cryogenic vessels”, the secretariat of which is held by AFNOR. 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 September 2008 and conflicting national standards shall be withdrawn at the latest by September 2008. This document includes Amendment 1, approved by CEN on 2006-10-06, Amendment 2, approved by CEN on 2008-02-07 and Corrigendum 1 issued by CEN on 2006-08-23. This document supersedes EN 14398-2:2003. The start and finish of text introduced or altered by amendment is indicated in the text by tags ! " and # $. The modifications of the related CEN Corrigendum have been implemented at the appropriate places in the text and are indicated by the tags ˜ ™. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports the objectives of the framework Directives on Transport of Dangerous Goods. The standard has been submitted for reference into the RID and/or in the technical annexes of the ADR. #deleted text$ EN 14398 consists of the following parts under the general title, Cryogenic vessels – Large transportable non-vacuum insulated vessels: – Part 1: Fundamental requirements
– Part 2: Design, fabrication, inspection and testing
– Part 3: Operational requirements
#Annexes B, C and E are normative. Annexes A and D are normative.$ This document includes a Bibliography. 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, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.



EN 14398-2:2003+A2:2008 (E) 6 1 Scope This European Standard specifies requirements for the design, fabrication, inspection and testing of large transportable non vacuum insulated cryogenic vessels of more than 1000 l volume, which are permanently (fixed tanks) or not permanently (demountable tanks) attached to a vehicle, for carriage by road. However, it can be used for other mode of transport providing the specific regulations/requirements are complied with. This European Standard applies to large transportable non vacuum insulated cryogenic vessels for fluids specified in EN
14398-1 and does not apply to vessels designed for toxic fluids. This European Standard does not include the general vehicle requirements e.g. running gear, brakes, lighting etc. that shall be in accordance with the relevant standards/regulations. 2 Normative references This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text, and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies (including amendments). EN 287-1, Approval testing of welders - Fusion welding - Part 1: Steels. #deleted text$ EN 473, Non destructive testing - Qualification and certification of NDT personnel - General principles. EN 875, Destructive tests on welds in metallic materials - Impact tests - Test specimen location, notch orientation and examination. EN 895, Destructive tests on welds in metallic materials - Transverse tensile test. EN 910, Destructive tests on welds in metallic materials – Bend tests. EN 1252-1:1998, Cryogenic vessels - Materials - Part 1: Toughness requirements for temperatures below - 80 °C. EN 1252-2, Cryogenic vessels - Materials - Part 2: Toughness requirements for temperatures between – 80 °C and –20 °C. EN 1418, Welding personnel – Approval testing of welding operators for fusion welding and resistance weld setters for fully mechanised and automatic welding of metallic materials. EN 1435, Non-destructive examination of welds – Radiographic examination of welded joints. EN 1626, Cryogenic vessels - Valves for cryogenic service. EN 1797, Cryogenic vessels - Gas/material compatibility. EN 10028-4, Flat products made of steels for pressure purposes – Part 4: Nickel alloy steels with specified low temperature properties. EN 10028-7:2000, Flat products made of steels for pressure purposes - Part 7: Stainless steels. EN 13068-3, Non-destructive testing – Radioscopic testing – Part 3: General principles of radioscopic testing of metallic materials by X – and gamma rays. EN 13445-3, Unfired pressure vessels – Part 3: Design.



EN 14398-2:2003+A2:2008 (E) 7 EN 13648-3, Cryogenic vessels - Safety devices for protection against excessive pressure - Part 3: Determination of required discharge - Capacity and sizing. EN 14398-1:2003, Cryogenic vessels - Large transportable non-vacuum insulated vessels - Part 1: Fundamental requirements. EN 14398-3, Cryogenic vessels – Large Transportable non-vacuum insulated vessels – Part 3: Operational requirements. EN ISO 6520-1, Welding and allied processes - Classification of geometric imperfections in metallic materials -
Part 1: Fusion welding !(ISO 6520-1:2007)". #EN ISO 9606-2, Qualification test of welders - Fusion welding - Part 2: Aluminium and aluminium alloys
(ISO 9606-2:2004). EN ISO 15613, Specification and qualification of welding procedures for metallic materials - Qualification based on pre-production welding test (ISO 15613:2004). 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 15614-1:2004). EN ISO 15614-2, Specification and qualification of welding procedures for metallic materials - Welding procedure test - Part 2: Arc welding of aluminium and its alloys (ISO 15614-2:2005).$ ISO 1106-1, Recommended practice for radiographic examination of fusion welded joints - Part 1: Fusion welded butt joints in steel plates up to 50 mm thick. 3 Terms, definitions and symbols For the purposes of this European Standard, the following terms, definitions and symbols apply. 3.1 Terms and definitions For the purposes of this European Standard, the terms and definitions given in EN 14398-1:2003 and the following apply. 3.1.1 large transportable non vacuum insulated vessel vessel of more than 1000 l volume intended for one or more cryogenic fluids, consisting of an inner vessel, an insulation, all of the valves and accessories and additional framework 3.1.2 fixed tank (tank vehicle) large transportable vessel permanently attached to a vehicle or to units of running gear used in its stead 3.1.3 demountable tank large transportable vessel non permanently attached to a vehicle. When attached to the carrier vehicle, the demountable tank meets the requirements prescribed for a fixed tank. It is designed to be lifted only when empty 3.1.4 inner vessel pressure vessel proper intended to contain the cryogenic fluid 3.1.5 insulation to protect the vessel against heat transfer from the outside atmospheric temperature



EN 14398-2:2003+A2:2008 (E) 8 3.1.6 automatic welding welding in which the parameters are automatically controlled. Some of these parameters can be adjusted to a limited extent, either manually or automatically, during welding to maintain the specified welding conditions 3.1.7 maximum allowable pressure, ps maximum pressure for which the equipment is designed, as specified by the manufacturer, defined at a location specified by the manufacturer, being the location of connection of protecting or limited devices or the top of the equipment 3.1.8 relief plate/plug plate or plug retained by atmospheric pressure only which allows relief of excess internal pressure 3.1.9 bursting disc device non-reclosing pressure relief device ruptured by differentia
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