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1、BRITISH STANDARD BS EN 12805:2002 Automotive LPG components Containers The European Standard EN 12805:2002 has the status of a British Standard ICS 23.020.30; 43.060.40 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 08:24
2、:48 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 12805:2002 This British Standard, having been prepared under the direction of the Engineering Sector Policy and Strategy Committee, was published under the authority of the Standards Policy and Strategy Committee on 28 June 2002 BSI 28 June 2002 I
3、SBN 0 580 39981 8 National foreword This British Standard is the official English language version of EN 12805:2002. The UK participation in its preparation was entrusted to Technical Committee PVE/19, LPG containers and their associated fittings, which has the responsibility to: A list of organizat
4、ions represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Corresponde
5、nce Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users of this publication are responsible for their correct application. Compliance with a British St
6、andard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and Euro
7、pean developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 42, an inside back cover and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amen
8、dments issued since publication Amd. No. DateComments Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 08:24:48 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12805 May 2002 ICS 23.020.30; 43.060.40 English version Automotive LPG components - Co
9、ntainers Composants pour vhicules au GPL - RservoirsBauteile fr Autogasanlagen/Treibgasanlagen - Autogastanks This European Standard was approved by CEN on 1 March 2002. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
10、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 Management Centre or to any CEN member. This European Standard exists in three official versions (English, Frenc
11、h, 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 Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmar
12、k, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, 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
13、-1050 Brussels 2002 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12805:2002 E Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 08:24:48 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 12805:2002 (E) 2 Contents page Foreword4
14、Introduction.5 1Scope 5 2Normative references 5 3Terms, definitions, symbols and abbreviations .6 3.1Terms and definitions6 3.2Symbols and abbreviations7 4Technical requirements.8 4.1General provisions 8 4.2Dimensions.8 4.3Steel.8 4.4Design temperature .9 4.5Design pressure.9 4.6Heat treatment9 4.7C
15、alculation of the parts under pressure9 4.7.1Wall thickness of the cylindrical shell.9 4.7.2Non-cylindrical containers10 4.7.3Container ends.10 5Construction and workmanship.11 5.1General requirements11 5.2Welding requirements .11 5.2.1Welding qualifications.11 5.2.2Technical welding requirements11
16、5.2.3Shift rotating of welds.11 5.2.4Inspection of welds12 5.2.5Weld repair12 5.3Tolerances13 5.3.1Out-of-roundness.13 5.3.2Straightness .13 5.3.3Capacity13 5.3.4Position.13 5.4Openings.13 5.5Accessories13 6Markings .14 7Tests during the production process and on prototypes15 7.1Tests to be performe
17、d .15 7.2Destructive testing.15 7.2.1General requirements15 7.2.2Tensile test .16 7.2.3Retesting for a tensile test16 7.2.4Bend test.16 7.2.5Retesting for a bend test.17 7.2.6Macroscopic examination.17 7.3Burst test under hydraulic pressure17 7.3.1Test conditions 17 7.3.2Interpretation of test17 7.3
18、.3Test acceptance conditions17 7.3.4Retesting for burst test .18 Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 08:24:48 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 12805:2002 (E) 3 7.4Hydraulic test.18 7.5Hardness test.18 7.6Fatigue test, only for containers for which the strength can not
19、 be calculated .19 7.7Bonfire test.19 7.7.1General19 7.7.2Container set-up 20 7.7.3Fire source20 7.7.4Temperature and pressure measurements.20 7.7.5General test requirements 20 7.7.6Acceptable results.21 7.8Radiographic examination21 Annex A (informative) Examples of container shapes.22 Annex B (inf
20、ormative) Examples of container ends.23 Annex C (normative) Examples of butt welds.24 Annex D (normative) Examples of welded plates and rings25 Annex E (normative) Shift rotating of welds .26 Annex F (normative) Tolerance on position of plate or ring27 Annex G (normative) Location of test specimen 2
21、8 G.1Location of test specimen from a 2-section container28 G.2Location of test specimen from a 3-section container29 G.3Location of macrosection for valve boss/plate welds.30 Annex H (normative) Test specimen for mechanical tests.31 Annex I (normative) Radiography of welds32 Annex J (normative) Det
22、ermination of the shape factor C33 Key35 Annex K (informative) Type approval requirements.36 K.1Application for type approval.36 K.2Approval according to UN ECE Regulation 67 .36 K.3Modification of a container type and extension of approval.37 K.4Conformity of production .37 K.5Production definitely
23、 discontinued37 Annex L (informative) Approval mark and communication form.38 L.1Type approval mark.38 L.2Example of a communication form38 L.3International country numbers in accordance with UN-ECE regulation 67.41 Bibliography42 Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 08:24:48 GMT+0
24、0:00 2006, Uncontrolled Copy, (c) BSI EN 12805:2002 (E) 4 Foreword This document EN 12805:2002 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 nat
25、ional standard, either by publication of an identical text or by endorsement, at the latest by November 2002, and conflicting national standards shall be withdrawn at the latest by November 2002. This document has been prepared under a mandate given to CEN by the European Commission and the European
26、 Free Trade Association, and supports essential requirements of EU Directive(s). Annexes A, B, K and L are informative, annexes C to J are normative. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this Europea
27、n Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 08:24:48 GMT+00:00 2006, Uncon
28、trolled Copy, (c) BSI EN 12805:2002 (E) 5 Introduction This European Standard defines requirements for the design, manufacturing and testing of welded steel automotive Liquefied Petroleum Gas (LPG) containers. This European Standard calls for the use of substances and procedures that can be injuriou
29、s to health if adequate precautions are not taken. It refers only to technical suitability and does not absolve the 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 a
30、ppropriately qualified and experienced people. 1 Scope This European Standard specifies the requirements for design, manufacturing and testing of welded steel automotive Liquefied Petroleum Gas (LPG) containers, to be permanently attached to a motor vehicle, where the automotive LPG is to be used as
31、 a fuel in the vehicle. 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, subsequen
32、t 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 wel
33、ding Part 1: Steels. EN 288-3, Specification and approval of welding procedures for metallic materials - Part 3: Welding procedure tests for the arc welding of steels. EN 589, Automotive fuels - LPG - Requirements and test methods. EN 876, Destructive test on welds in metallic materials - Longitudin
34、al tensile test on weld metal in fusion welded joints. EN 895, Destructive tests on welds in metallic materials Transverse tensile test. EN 910, Destructive tests on welds in metallic materials - Bend tests. EN 1435, Non-destructive examination of welds - Radiographic examination of welded joints. E
35、N 10002-1, Metallic materials - Tensile testing - Part 1: Method of test at ambient temperature. EN 10120, Steel sheet and strip for welded gas cylinders. EN 22768-1, General tolerances - Part 1: Tolerances for linear and angular dimensions without individual tolerance indications (ISO 2768-1:1989).
36、 EN ISO 6507-1, Metallic materials - Vickers hardness test - Part 1: Test method (ISO 6507-1:1997). EN ISO 7438, Metallic materials - Bend test (ISO 7438:1985). Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 08:24:48 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 12805:2002 (E) 6 EN ISO 7799,
37、 Metallic materials - Sheet and strip 3 mm thick or less - Reverse bend test (ISO 7799:1985). 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. ISO 2504, Radiography of welds and vewing conditi
38、ons for films - Utilization of recommended patterns of image quality indicators (I.Q.I.). 3 Terms, definitions, symbols and abbreviations 3.1 Terms and definitions For the purposes of this European Standard, the following terms and definitions apply. 3.1.1 test pressure pressure to which the contain
39、er is subjected during the test procedure 3.1.2 design pressure pressure on which the calculations are based 3.1.3 working pressure pressure under normal operating conditions 3.1.4 container vessel used for the storage of automotive LPG 3.1.5 cylindrical container container with a cylindrical shell
40、and two dished ends, either torispherical or elliptical 3.1.6 special container container other than the cylindrical container 3.1.7 type of containers container or a group of containers where the individual container does not differ significantly with respect to the following conditions: the manufa
41、cturer (different trade names or marks possible); the shape; the openings; the material; the welding process; the heat treatment; the production line; the diameter; Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 08:24:48 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 12805:2002 (E) 7 height (
42、in case of a special container); the nominal wall thickness 3.1.8 stress relieving heat treatment given to objects to reduce the residual stresses without altering the metallurgical structure of steel, by heating to a uniform temperature, Ac1, and cooling in a controlled atmosphere 3.1.9 normalising
43、 heating to a uniform temperature, Ac3, of the steel and then cooling in a controlled atmosphere 3.1.10 hot-rolled deformation of the material at the critical temperature Ac3 NOTEAc1 and Ac3 will be obtained from the material data sheet. 3.1.11 longitudinal weld weld over the full length of the shel
44、l or cylindrical part of the shell, excluding welds for fittings 3.1.12 batch number of containers made under the same process, that belong to the same family 3.1.13 parent material material in the state before any specific transformation with regards to the container manufacturing process 3.1.14 Li
45、quefied Petroleum Gas (LPG) mixture of light hydrocarbons, gaseous under normal atmospheric conditions which can be liquefied by increased pressure or decreased temperature. The main components are propane, propene, butane and butene isomers 3.1.15 automotive LPG motor fuel complying with EN 589 3.2
46、 Symbols and abbreviations ais the minimum calculated wall thickness of the cylindrical shell in mm, bis the minimum calculated wall thickness of the dished ends in mm, eis the actual wall thickness, Cis the shape factor, Dis the nominal outside diameter of the container in mm, Fis the force in N, g
47、is the gravity in m/s2, his the height of cylindrical part of dished end in mm, His the outside height of dished part of container end in mm, Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 08:24:48 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 12805:2002 (E) 8 Pbis the maximum pressure measu
48、red in the burst test in kPa, Phis the hydraulic test pressure /design pressure in kPa, ris the inside knuckle radius of the dished end of the standard cylindrical container in mm, Ris the inside dish radius of the dished end of a standard cylindrical container in mm, Reis the minimum yield stress i
49、n N/mm2 guaranteed by the material standard, Rmis the minimum tensile strength in N/mm2 guaranteed by the material standard, zis the welding factor, HVis the Vickers hardness, PRVis the pressure relief valve, PRDis the pressure relief device or fuse. 4 Technical requirements 4.1 General provisions The container for vehicles using automotive LPG in their propulsion system shall function in a correct and safe way. The materials of the container shall be compatible with LPG. All necessary corrosion prevention measures shall be taken to protect t
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