1、BRITISH STANDARDBS EN 1442:2006 +A1:2008LPG equipment and accessories Transportable refillable welded steel cylinders for LPG Design and constructionICS 23.020.30g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g
2、44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 1442:2006+A1:2008This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 June 2006 BSI 2008ISBN 978 0 580 62352 3National forewordThis British Standard is the UK implementation of
3、 EN 1442:2006+A1:2008. It supersedes BS EN 1442:2006 which is withdrawn.The start and finish of text introduced or altered by amendment is indicated in the text by tags. Tags indicating changes to CEN text carry the number of the CEN amendment. For example, text altered by CEN amendment A1 is indica
4、ted by !“.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 be obtained on request to its secretary.This publication does not purport to include all the necessar
5、y 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 publicationDate Comments30 April 2008 Implementation of CEN amendment A1:2008EUROPEAN STANDARD NORME EUROP
6、ENNE EUROPISCHE NORM EN 1442:2006+A1 January 2008 ICS 23.020.30 Supersedes EN 1442:2006English Version LPG equipment and accessories - Transportable refillable welded steel cylinders for LPG - Design and construction quipements pour GPL et leurs accessoires - Bouteilles en acier soud transportables
7、et rechargeables pour gaz de ptrole liqufis (GPL) - Conception et fabrication Flssiggas-Gerte und Ausrstungsteile - Ortsbewegliche, wiederbefllbare, geschweite Flaschen aus Stahl fr Flssiggas (LPG) - Gestaltung und Konstruktion This European Standard was approved by CEN on 18 May 2006 and includes A
8、mendment 1 approved by CEN on 20 December 2007. 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 concern
9、ing 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
10、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, Lithuani
11、a, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, 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 CE
12、N All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1442:2006+A1:2008: E2 Contents Page Foreword4 Introduction .5 1 Scope 6 2 Normative references 6 3 Terms, definitions and symbols.7 3.1 Terms and definitions .7 3.2 Symbols 7 4 Material
13、s .8 5 Design .9 5.1 General requirements9 5.2 Calculation of cylindrical shell thickness .10 5.3 Design of torispherical and semi-ellipsoidal ends concave to pressure.10 5.4 Design of ends of shapes other than torispherical and semi-ellipsoidal 14 5.5 Minimum wall thickness14 5.6 Design of openings
14、15 5.7 Valve protection.15 5.8 Non-pressure containing attachments15 6 Construction and workmanship.15 6.1 Welding qualification.15 6.2 Plates and pressed parts 16 6.3 Welded joints16 6.4 Tolerances 18 6.4.1 Out-of-roundness.18 6.4.2 Straightness .18 6.4.3 Verticality18 6.5 Closure of openings 18 6.
15、6 Heat treatment18 7 Tests and examinations 19 7.1 General19 7.2 Types of test and evaluation of test results19 7.3 Test specimens and related tests and examinations.19 7.3.1 Two-piece cylinders 19 7.3.2 Three-piece cylinders20 7.3.3 Valve boss welds .21 7.4 Tensile test .22 7.4.1 Parent metal .22 7
16、.4.2 Welds 22 7.5 Bend test.22 7.5.1 Procedure .22 7.5.2 Requirements.23 7.6 Burst test under hydraulic pressure25 7.6.1 Procedure .25 7.6.2 Requirements.25 7.7 Pressure test 26 7.7.1 Procedure .26 7.7.2 Requirements.26 7.8 Radiographic examination26 7.8.1 Procedure .26 BS EN 1442:2006+A1:20083 7.8.
17、2 Assessment .27 7.8.3 Requirements.27 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 8 Technical requirements for type
18、approval29 8.1 Extent of testing 29 8.2 Cylinder types29 8.3 Type approval certificate 30 9 Production testing and examination requirements .30 9.1 Tests and examinations applicable to all cylinders.30 9.2 Radiographic examination30 9.3 Macro examination 31 9.4 Examination of valve boss weld 31 9.5
19、Examination of non-pressure containing attachment welds31 9.6 Unacceptable imperfections found by the radiographic or macro examinations 31 9.7 Batch testing (mechanical / burst tests) .32 9.7.1 Batch.32 9.7.2 Inspection lots .32 9.7.3 Rate of sampling32 9.7.4 Additional checks34 9.8 Failure to meet
20、 mechanical and burst test requirements .34 9.8.1 Mechanical .34 9.8.2 Burst .34 9.8.3 Batch retest34 9.8.4 Resubmission of a batch35 9.8.5 Weld repairs .35 10 Marking.35 11 Certificate .36 Annex A (normative) Manufacturers marking.37 Bibliography38 BS EN 1442:2006+A1:20084 Foreword This document (E
21、N 1442:2006+A1:2008) 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 endorsemen
22、t, at the latest by July 2008, and conflicting national standards shall be withdrawn at the latest by July 2008. This document supersedes !EN 1442:2006“. This document includes Amendment 1, approved by CEN on 2007-12-20. The start and finish of text introduced or altered by amendment is indicated in
23、 the text by tags ! “. This European Standard has been submitted for reference into the RID and/or in the technical annexes of the ADR. Therefore the standards listed in the normative references and covering basic requirements of the RID/ADR not addressed within the present standard are normative on
24、ly when the standards themselves are referred to in the RID and/or in the technical annexes of the ADR. This European Standard has been extensively re-formatted to align with other more recent LPG cylinder standards. The main technical changes are a widening of the range of materials permitted, refe
25、rence to the latest ISO welding standards, the introduction of radioscopy as a permitted alternative to radiographic examination of welds, a reduction in the minimum required burst pressure from 50 bar to 35 bar and simplification of the marking requirements by reference to EN 14894. According to th
26、e 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, Lithuan
27、ia, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. BS EN 1442:2006+A1:20085 Introduction This European Standard calls for the use of substances and procedures that may be injurious to health if adequate precaution
28、s 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 the execution of its provisions is entrusted to appropriately qualified and exp
29、erienced people. All pressures are gauge unless otherwise stated. BS EN 1442:2006+A1:20086 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, o
30、f water capacity from 0,5 l up to and including 150 l, exposed to ambient temperatures. This European Standard applies only to cylinders having a circular cross-section. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated refere
31、nces, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 2871, Qualification test of welders Fusion welding Part 1: Steels EN 4621, Non-destructive testing Image quality of radiographs Part 1: Image quality ind
32、icators (wire type) Determination of image quality value EN 4622, Non-destructive testing Image quality of radiographs Part 2: Image quality indicators (step/hole type) Determination of image quality value EN 473:2000, Non-destructive testing Qualification and certification of NDT personnel General
33、principles EN 895, Destructive tests on welds in metallic materials Transverse tensile test EN 910, Destructive tests on welds in metallic materials Bend tests EN 962:1996, Transportable gas cylinders Valve protection caps and valve guards for industrial and medical gas cylinders Design, constructio
34、n and tests EN 970, Non-destructive examination of fusion welds Visual examination 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 setter
35、s for fully mechanized and automatic welding of metallic materials EN 1435:1997, Non-destructive examination of welds Radiographic examination of welded joints EN 100021, Metallic materials Tensile testing Part 1: Method of test at ambient temperature EN 10120, Steel sheet and strip for welded gas c
36、ylinders EN 10204:2004, Metallic products Types of inspection documents !EN 147841, Non-destructive testing Industrial computed radiography with storage phosphor imaging plates Classification of systems EN 147842, Non-destructive testing Industrial computed radiography with storage phosphor imaging
37、plates General principles for testing of metallic materials using X-rays and gamma rays“ !EN 14894:2006“, LPG equipment and accessories Cylinder and drum marking EN ISO 643, Steels Micrographic determination of the apparent grain size (ISO 643:2003) BS EN 1442:2006+A1:20087 EN ISO 5817:2003, Welding
38、 Fusion welded joints in steel, nickel, titanium and their alloys (beam welding excluded) Quality levels for imperfections (ISO 5817:2003) EN ISO 65201, Welding and allied processes Classification of geometric imperfections in metallic materials Part 1: Fusion welding (ISO 6520-1:1998) EN ISO 15609-
39、1, Specification and qualification of welding procedures for metallic materials Welding procedure specification Part 1: Arc welding (ISO 15609-1:2004) EN ISO 15613, Specification and qualification of welding procedures for metallic materials Qualification based on pre-production welding test (ISO 15
40、613:2004) 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) 3 Terms, definitions and symbols 3.1 Terms and definitions For the purpos
41、es of this document, the following terms and definitions apply. 3.1.1 yield strength upper yield strength ReHor 0,2 % proof strength (non-proportional elongation), Rp0,2, for steels that do not exhibit a defined yield 3.1.2 normalised condition resulting from heat treatment in which a finished cylin
42、der is heated to a uniform temperature above the upper critical point (Ac3) of the steel and then cooled under controlled conditions 3.1.3 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 t
43、he 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 3.1.4 weld-overrun zone area on a circumferential weld where the weld metal deposition has carried on beyond the start point 3.2 Symbols a calcu
44、lated thickness of the cylindrical shell, in millimetres. A percentage elongation after fracture. b calculated thickness of the end of the cylinder, in millimetres. C shape factor for ends (see Table 2, Figure 2 and Figure 3). D outside diameter of the cylinder as given in the design drawing (see Fi
45、gure 1), in millimetres. Dpoutside diameter of a bend test mandrel (see Figure 8), in millimetres. BS EN 1442:2006+A1:20088 e actual thickness of the material in the finished cylinder (at the point under consideration), in millimetres. h height of the cylindrical part of the end (see Figure 1), in m
46、illimetres. H outside height of the domed part of the end (see Figure 1), in millimetres. J stress reduction factor. Looriginal gauge length of the test piece, in accordance with EN 100021, in millimetres. n ratio of diameter of bend test former to the thickness of the test piece, (see Table 6). Pcc
47、alculation pressure (1 bar = 105Pa = 105N/m2), used to calculate the minimum required thickness of the cylindrical shell and ends, in bar. Pbmaximum pressure attained during the burst test, in bar. Phactual test pressure applied to the cylinder by the manufacturer, in bar. Phminminimum permissible t
48、est pressure, in bar. r inside knuckle radius of the torispherical end, in millimetres. R inside spherical radius of the torispherical end, in millimetres. Rgminimum value of tensile strength guaranteed by the cylinder manufacturer for the finished cylinder, in newtons per square millimetre. Rominim
49、um value of yield strength guaranteed by the cylinder manufacturer for the finished cylinder, in newtons per square millimetre. Rmactual value of tensile strength determined by the tensile test specified in 7.4, in newtons per square millimetre. ReH upper yield strength, in newtons per square millimetre, as defined in EN 100021. Rp0,2 Proof strength, non proportional extension in newtons per square millimetre, as defined in EN 100021. 4 Materials 4.1 Materials for shells and end pressin
