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1、BRITISH STANDARD BS EN 12493:2008 LPG equipment and accessories Welded steel tanks for liquefied petroleum gas (LPG) Road tankers design and manufacture ICS 23.020.30 ? Copyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy Licensee=Boeing Co/5910770001 No
2、t for Resale, 08/14/2008 20:40:57 MDTNo reproduction or networking permitted without license from IHS -,-,- BS EN 12493:2008 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 April 2008 BSI 2008 ISBN 978 0 580 58898 3 National foreword This
3、British Standard is the UK implementation of EN 12493:2008. It supersedes BS EN 12493:2001 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee PVE/19, LPG containers and their associated fittings. A list of organizations represented on this committee can
4、be obtained on request to its secretary. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard cannot confer immunity from legal obligations. Amendments/corrigenda issued since pu
5、blication DateComments Copyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy Licensee=Boeing Co/5910770001 Not for Resale, 08/14/2008 20:40:57 MDTNo reproduction or networking permitted without license from IHS -,-,- EUROPEAN STANDARD NORME EUROPENNE EURO
6、PISCHE NORM EN 12493 March 2008 ICS 23.020.30Supersedes EN 12493:2001 English Version LPG equipment and accessories - Welded steel tanks for liquefied petroleum gas (LPG) - Road tankers design and manufacture quipements pour GPL et leurs accessoires - Rservoirs en acier souds pour gaz de ptrole liqu
7、fi (GPL) - Conception et construction des camions-citernes Flssiggas-Gerte und Ausrstungsteile - Geschweite Druckbehlter aus Stahl fr Flssiggas (LPG) - Konstruktion und Herstellung von Straentankfahrzeugen This European Standard was approved by CEN on 11 February 2008. CEN members are bound to compl
8、y 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 Manageme
9、nt 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
10、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
11、, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2008 CENAll rights of exploitation in any form and by any means reserved worldwide fo
12、r CEN national Members. Ref. No. EN 12493:2008: E Copyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy Licensee=Boeing Co/5910770001 Not for Resale, 08/14/2008 20:40:57 MDTNo reproduction or networking permitted without license from IHS -,-,- EN 12493:20
13、08 (E) 2 Contents Page Foreword5 Introduction.6 1 Scope 6 2 Normative references6 3 Terms and definitions .8 4 Materials .8 4.1 Suitability8 4.2 Pressure retaining parts .9 4.3 Non-pressure retaining parts .9 4.4 Welding consumables.9 4.5 Non-metallic materials (gaskets)9 4.6 Inspection documents fo
14、r materials9 5 Tank design9 5.1 Design conditions9 5.2 Surge plates .9 5.3 Doubler plates10 5.4 Stresses due to motion.10 5.5 Self-supporting tanks10 5.6 Vacuum conditions10 5.7 Tank mountings.11 5.8 Internal pipework.11 6 Openings 11 6.1 General11 6.2 Reinforcement of openings11 6.3 Threaded connec
15、tions 11 6.4 Manhole 11 7 Non-pressure retaining parts .12 7.1 Attachment welds12 7.2 Position of attachment welds.12 8 Workmanship and construction.12 8.1 General12 8.2 Control of materials.12 8.3 Acceptable weld details 13 8.4 Heat treatment and forming13 8.4.1 Cold forming.13 8.4.2 Hot forming.14
16、 8.4.3 Testing of formed parts.14 8.4.4 Visual examination and control of dimensions14 8.4.5 Marking.14 8.5 Welding.15 8.5.1 General15 8.5.2 Longitudinal welds 15 8.5.3 Welding procedure specification (WPS) .15 8.5.4 Qualification of WPS .15 8.5.5 Qualification of welders and welding operators.15 8.
17、5.6 Preparation of edges.15 8.5.7 Attachments and fastenings.16 BS EN 12493:2008 Copyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy Licensee=Boeing Co/5910770001 Not for Resale, 08/14/2008 20:40:57 MDTNo reproduction or networking permitted without lic
18、ense from IHS -,-,- EN 12493:2008 (E) 3 8.5.8 Preheat16 8.6 Post-weld heat treatment16 8.7 Manufacturing tolerances.16 8.8 Repairs to pressure envelope and direct attachment welds 16 8.8.1 General requirements .16 8.8.2 Repair of surface imperfections in the parent metal .17 8.8.3 Repair of weld imp
19、erfections .17 9 Construction and workmanship of internal pipework.17 10 Inspection and testing 17 10.1 General .17 10.2 Mechanical testing 17 10.2.1 Production test plates.17 10.2.2 Longitudinal welds17 10.2.3 Circumferential welds.18 10.2.4 Mechanical tests18 10.2.5 Test requirements .18 10.3 Non-
20、destructive testing 19 10.3.1 General .19 10.3.2 Internal imperfections.19 10.3.3 Surface imperfections.19 10.4 Non-destructive testing for welds .19 10.4.1 Radiographic testing.19 10.4.2 Marking and identification of radiographs19 10.4.3 Ultrasonic testing 20 10.4.4 Magnetic particle testing 20 10.
21、4.5 Penetrant testing .20 10.5 Qualification of non-destructive testing personnel.20 10.6 Visual examination of welds.20 10.7 Acceptance criteria .20 10.8 Pressure test20 10.9 Capacity21 11 External corrosion protection and finishing.21 11.1 External protection21 11.2 Finishing operations.21 12 Mark
22、ing.21 13 Records and documentation21 13.1 Documentation obtained by the manufacturer.21 13.2 Records prepared by the manufacturer21 13.3 Retention and supply of documents .22 Annex A (normative) Guidance on selection of material grades.23 Annex B (normative) Reference temperatures for design24 B.1
23、Introduction24 B.2 General .24 B.3 Developed pressure24 B.4 Filling24 Annex C (informative) Alternative reference temperatures for design .25 C.1 Introduction25 C.2 General .25 C.3 Developed pressure25 C.4 Filling25 Annex D (normative) Design26 D.1 Design stresses.26 D.2 Design pressure 26 D.2.1 Gen
24、eral .26 D.2.2 Rigid single tankers and semi-trailers 26 BS EN 12493:2008 Copyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy Licensee=Boeing Co/5910770001 Not for Resale, 08/14/2008 20:40:57 MDTNo reproduction or networking permitted without license fr
25、om IHS -,-,- EN 12493:2008 (E) 4 D.2.3 Tanker plus full trailer combinations.26 D.3 Design formulae.27 D.3.1 Cylindrical shell calculation .27 D.3.2 Dished ends27 D.3.3 Conical shell calculations.30 D.4 Nozzle reinforcement 34 D.5 Nozzle reinforcement by pads or flanges .36 D.6 Nozzle reinforcement
26、by branches36 Annex E (informative) Example of joints.41 Annex F (normative) Allowable tolerances 45 F.1 Tanks.45 F.1.1 External diameter.45 F.1.2 Out of roundness.45 F.1.3 Deviation of straightness45 F.1.4 Irregularities in profile.45 F.2 Dished end tolerance 46 F.2.1 Thickness of material46 F.2.2
27、Profile46 F.3 Assembly tolerances.47 F.3.1 Middle line alignment 47 F.3.2 Surface alignment47 F.4 Attachments, nozzles and fittings48 F.5 Overall length.48 Annex G (normative) Heat treatment.49 G.1 Method of post-weld heat treatment49 G.2 Temperature control49 G.3 Temperature limit.49 G.4 Temperatur
28、e measurement.49 Annex H (informative) Typical method for measurement of shell peaking.50 H.1 Profile gauge50 H.2 Peaking survey.50 Annex I (normative) Welding imperfections and test specimens 53 I.1 Imperfections .53 I.2 Test specimens56 Annex J (informative) Choice of non-destructive test methods
29、for welds57 J.1 Internal imperfections .57 J.2 Surface imperfections.57 Annex K (normative) Hydraulic pressure test58 K.1 Temporary fittings .58 K.2 Pressure gauges58 K.3 Pressurising agent.58 K.4 Avoidance of shock.58 K.5 Applied pressure58 Annex L (normative) Name plate .59 Bibliography61 BS EN 12
30、493:2008 Copyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy Licensee=Boeing Co/5910770001 Not for Resale, 08/14/2008 20:40:57 MDTNo reproduction or networking permitted without license from IHS -,-,- EN 12493:2008 (E) 5 Foreword This document (EN 12493
31、:2008) 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 late
32、st by September 2008, and conflicting national standards shall be withdrawn at the latest by September 2008. 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 a
33、ll such patent rights. This document supersedes EN 12493:2001. This European Standard has been submitted for reference into the technical annexes of the European Agreement concerning the international carriage of dangerous goods by road (ADR). The standards listed in the normative references and cov
34、ering the basic requirements of the ADR not addressed within the present standard are normative only if the standards themselves are referred to in the technical annexes of ADR. Main changes from 2001 version: update of reference standards, particularly relating to qualification of welding, in text
35、and Clause 2; restriction to maximum UTS added to 4.2 and Annex A to align with ADR restrictions; revision of symbols and presentation of D.3.2.5 to align with EN 13445 (source standard). No technical changes to end design result; editorial changes. According to the CEN/CENELEC Internal Regulations,
36、 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,
37、 Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. BS EN 12493:2008 Copyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy Licensee=Boeing Co/5910770001 Not for Resale, 08/14/2008 20:40:57 MDTNo repro
38、duction or networking permitted without license from IHS -,-,- EN 12493:2008 (E) 6 Introduction This European Standard calls for the use of substances and procedures that may be injurious to health if adequate precautions are not taken. It refers only to technical suitability and does not absolve th
39、e user from legal obligations relating to health and safety at any stage. It has been assumed in the drafting of this European Standard that execution of its provisions is entrusted to appropriately qualified and experienced people. 1 Scope This European Standard specifies minimum requirements for m
40、aterials, design, construction and workmanship procedures, and tests for welded LPG road tanker tanks and their welded attachments manufactured from carbon, carbon/manganese and micro alloy steels. There is no upper size limit as this is determined by the gross vehicle weight limitation. This Europe
41、an Standard does not cover tanks for tank containers. NOTE 1 In the context of this standard the term “road tanker“ is understood to mean “fixed tanks” and “demountable tanks” as defined in ADR. NOTE 2 The equipment of the tanks and the inspection and testing after assembly is covered by EN 12252, a
42、nd EN 14334, respectively. NOTE 3 The design type of the road tanker is subject to the approval by the competent authority, as required by ADR. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cit
43、ed applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 287-1, Qualification test of welders Fusion welding Part 1: Steels EN 444, Non-destructive testing General principles for radiographic examination of metallic materials by X- and
44、gamma-rays 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
45、value EN 473, Non destructive testing Qualification and certification of NDT personnel General principles EN 571-1, Non destructive testing Penetrant testing Part 1: General principles EN 837-2, Pressure gauges Part 2: Selection and installation recommendations for pressure gauges BS EN 12493:2008 C
46、opyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy Licensee=Boeing Co/5910770001 Not for Resale, 08/14/2008 20:40:57 MDTNo reproduction or networking permitted without license from IHS -,-,- EN 12493:2008 (E) 7 EN 875, Destructive tests on welds in meta
47、llic materials Impact tests Test specimen location, notch orientation and examination EN 876, Destructive tests on welds in metallic materials Longitudinal tensile test on weld metal in fusion welded joints EN 895, Destructive tests on welds in metallic materials Transverse tensile test EN 910, Dest
48、ructive tests on welds in metallic materials Bend tests EN 970, Non-destructive examination of fusion welds Visual examination EN 1290, Non-destructive examination of welds Magnetic particle examination of welds EN 1321, Destructive tests on welds in metallic materials Macroscopic and microscopic examination of welds EN 1418, Welding personnel Approval testing of welding operato