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1、BRITISH STANDARD BS EN 729-4:1995 Quality requirements for welding Fusion welding of metallic materials Part 4: Elementary quality requirements The European Standard EN 729-4:1994 has the status of a British Standard UDC 621.791.5:669:658.562 Licensed Copy: sheffieldun sheffieldun, na, Tue Nov 07 05
2、:34:15 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 729-4:1995 This British Standard, having been prepared under the direction of the Engineering Sector Board, was published under the authority of the Standards Board and comes into effect on 15 January 1995 BSI 12-1998 The following BSI referenc
3、es relate to the work on this standard: Committee reference WEE/-/1/6 Draft for comment 92/75859 DC ISBN 0 580 23134 8 Cooperating organizations The European Committee for Standardization (CEN), under whose supervision this European Standard was prepared, comprises the national standards organizatio
4、ns of the following countries: AustriaOesterreichisches Normungsinstitut BelgiumInstitut belge de normalisation DenmarkDansk Standard FinlandSuomen Standardisoimisliito, r.y. FranceAssociation franaise de normalisation GermanyDeutsches Institut fr Normung e.V. GreeceHellenic Organization for Standar
5、dization IcelandTechnological Institute of Iceland IrelandNational Standards Authority of Ireland ItalyEnte Nazionale Italiano di Unificazione LuxembourgInspection du Travail et des Mines NetherlandsNederlands Normalisatie-instituut NorwayNorges Standardiseringsforbund PortugalInstituto Portugus da
6、Qualidade SpainAsociacin Espaola de Normalizacin y Certificacin SwedenStandardiseringskommissionen i Sverige SwitzerlandAssociation suisse de normalisation United KingdomBritish Standards Institution Amendments issued since publication Amd. No.DateComments Licensed Copy: sheffieldun sheffieldun, na,
7、 Tue Nov 07 05:34:15 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 729-4:1995 BSI 12-1998i Contents Page Cooperating organizationsInside front cover National forewordii Foreword2 Text of EN 729-43 National annex NA (informative) Committees responsibleInside back cover National annex NB (informati
8、ve) Cross-referencesInside back cover Licensed Copy: sheffieldun sheffieldun, na, Tue Nov 07 05:34:15 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 729-4:1995 ii BSI 12-1998 National foreword This British Standard has been prepared under the direction of the Engineering Sector Board and is the En
9、glish language version of EN 729-4:1994 Quality requirements for welding Fusion welding of metallic materials Part 4: Elementary quality requirements, published by the European Committee for Standardization (CEN). EN 729-4 was produced as the result of international discussion in which the UK took a
10、n active part. There has previously been no direct British Standard equivalent to this standard. Application Standards may request the manufacturer to comply with one of the Parts of EN 729. It is assumed that the execution of the provisions of this document is entrusted to suitably qualified and ex
11、perienced persons. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This
12、document comprises a front cover, an inside front cover, pages i and ii, the EN title page, pages 2 to 4, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside f
13、ront cover. Licensed Copy: sheffieldun sheffieldun, na, Tue Nov 07 05:34:15 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 729-4 September 1994 UDC 621.791.5:669:658.562 Descriptors: Welding, fusion welding, welded constructions, metal products, quali
14、ty, quality assurance, manufacturing English version Quality requirements for welding Fusion welding of metallic materials Part 4: Elementary quality requirements Exigences de qualit en soudage Soudage par fusion des matriaux mtalliques Partie 4: Exigences de qualit lmentaire Schweitechnische Qualit
15、tsanforderungen Schmelzschweien metallischer Werkstoffe Teil 4: Elementar-Qualittsanforderungen This European Standard was approved by CEN on 1994-09-06. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the sta
16、tus 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 Central Secretariat or to any CEN member. This European Standard exists in three official versions (English, French, German). A
17、version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Denmark, Finland, France, Germany,
18、 Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1994 Copyright
19、 reserved to CEN members Ref. No. EN 729-4:1994 E Licensed Copy: sheffieldun sheffieldun, na, Tue Nov 07 05:34:15 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 729-4:1994 BSI 12-1998 2 Foreword This European Standard was prepared by the Technical Committee CEN/TC 121, Welding, of which the secretari
20、at is held by DS. CEN/TC 121 has decided to submit the final draft for formal vote by its resolution 173/1993. The result was positive. EN 729 is composed of the four following parts: EN 729-1, Quality requirements for welding Fusion welding of metallic materials Part 1: Guidelines for selection and
21、 use; EN 729-2, Quality requirements for welding Fusion welding metallic materials Part 2: Comprehensive quality requirements; EN 729-3, Quality requirements for welding Fusion welding of metallic materials Part 3: Standard quality requirements; EN 729-4, Quality requirements for welding Fusion weld
22、ing of metallic materials Part 4: Elementary quality requirements. This European Standard has been prepared under a mandate given to CEN by the Commission of the European Communities and the European Free Trade Association, and supports essential requirements of EC Directive(s). This European Standa
23、rd shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by March 1995, and conflicting national standards shall be withdrawn at the latest by March 1995. According to the CEN/CENELEC Internal Regulations, the following countrie
24、s are bound to implement this European Standard: Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. Contents Page Foreword2 1Scope3 2Normative references3 3Definitions3 4Contr
25、act and design review3 5Subcontracting3 6Welders4 7Welding equipment4 8Welding activities4 9Welding consumables4 10Welding related inspection and testing4 11Non-conforming and corrective action4 12Quality records4 Licensed Copy: sheffieldun sheffieldun, na, Tue Nov 07 05:34:15 GMT+00:00 2006, Uncont
26、rolled Copy, (c) BSI EN 729-4:1994 BSI 12-19983 1 Scope This standard has been prepared such that: it is independent of the type of welded construction to be manufactured; it defines quality requirements for welding both in workshops and on site; it provides guidance for describing a manufacturers c
27、apability to produce welded constructions to meet specified requirements; it may also be used as a basis for assessing the manufacturer in respect to his welding capability. The standard is appropriate when demonstration of a manufacturers capability to produce welded construction, fulfilling specif
28、ied quality requirements, are specified in one or more of the following: a contract between involved parties; an application standard; a regulatory requirement. The requirements contained within this standard may be adopted in full or may be selectively deleted by the manufacturer if not applicable
29、to the construction concerned. They provide a flexible framework for the control of welding in the following cases: Case 1 To provide specific requirements for fusion welding in contracts which require the manufacturer to have a quality system other than EN 29001 or EN 29002 and where the documented
30、 welding control has a minor importance to the overall integrity of the final construction. Case 2 To provide specific requirements for fusion welding as guidance to a manufacturer developing a quality system. Case 3 To provide specific requirements for references in application standards which uses
31、 fusion welding as part of its requirements or in a contract between relevant parties. 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 publ
32、ications 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. EN 287-1, A
33、pproval testing of welders Fusion welding Part 1: Steels. EN 287-2, Approval testing of welders Fusion welding Part 2: Aluminium and aluminium alloys. EN 473, Non-destructive testing Qualification and certification of personnel. EN 729-1, Quality requirements for welding Fusion welding of metallic m
34、aterials Part 1: Guidelines for selection and use. prEN 1418, Welding personnel Approval testing of welding personnel for fully mechanized and automatic welding of metallic materials. EN 29001:1987, Quality systems Model for quality assurance in design development, production, installation and servi
35、cing. EN 29002:1987, Quality systems Model for quality assurance in production and installation. 3 Definitions For the purposes of this standard, definitions listed in EN 729-1 apply. 4 Contract and design review The manufacturer shall review the contractual requirements and the design data provided
36、 by the purchaser or in-house data for products design by the manufacturer. This is to ensure that all information necessary to carry out the fabrication operations is available prior to the commencement of the work. The manufacturer shall affirm his capability to meet all welding contract requireme
37、nts and ensure adequate planning of all quality related activities. 5 Subcontracting Any subcontractor shall work under the order and responsibility of the manufacturer and shall fully comply with the relevant requirements of this standard. Licensed Copy: sheffieldun sheffieldun, na, Tue Nov 07 05:3
38、4:15 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 729-4:1994 4 BSI 12-1998 6 Welders All welders and welding operators shall be approved by an appropriate test according to appropriate part of EN 287 or EN 1418. All records of approval shall be maintained up to date. 7 Welding equipment Welding equ
39、ipment shall be maintained so that it is in good working order. 8 Welding activities Welding shall be performed in accordance with an appropriate welding procedure. 9 Welding consumables The manufacturer shall assure, that appropriate welding consumables are used and stored in accordance with suppli
40、ers specifications. 10 Welding related inspection and testing 10.1 General The manufacturer shall provide a sufficient supervision of the welding production in order to assure that the welding is carried out in a manner compatible with good workmanship. The manufacturer shall carry out all inspectio
41、n and testing as specified in the contract. The manufacturer should provide reasonable assistance to third parties (if any) carrying out inspection and testing, if required. 10.2 Inspection and testing personnel The manufacturer shall have at his disposal sufficient and competent personnel for plann
42、ing and performing inspection and testing, when required to perform such activities. The non-destructive testing personnel shall be approved according to EN 473. 11 Non-conforming and corrective action Measures shall be implemented to control items which do not conform to specified requirements in o
43、rder to prevent their inadvertent use. When repair and/or rectification is undertaken by the manufacturer, appropriate procedures shall be available at all workstations where repair or rectification is performed. When repair or rectification is carried out, the items shall be re-inspected, tested an
44、d examined in accordance with the original requirements. 12 Quality records Quality records required by contract shall be retained for a minimum period of 5 years in the absence of any other specified requirements. Licensed Copy: sheffieldun sheffieldun, na, Tue Nov 07 05:34:15 GMT+00:00 2006, Uncon
45、trolled Copy, (c) BSI BS EN 729-4:1995 BSI 12-1998 National annex NA (informative) Committees responsible The United Kingdom participation in the preparation of this European Standard was entrusted by the Engineering Sector Board to Technical Committee WEE/-/1/6 upon which the following bodies were
46、represented: Associated Offices Technical Committee British Constructional Steelwork Association Ltd. British Railways Board Electricity Association Institute of Quality Assurance Power Generation Contractors Association (BEAMA Ltd.) Railway Industry Association of Great Britain Welding Manufacturer
47、s Association (BEAMA Ltd.) National annex NB (informative) Cross-references Publication referred toCorresponding British Standard BS EN 287 Approval testing of welders for fusion welding EN 287-1:1992Part 1:1992 Steels EN 287-2:1992Part 2:1992 Aluminium and aluminium alloys EN 473:1992BS EN 473:1993
48、 General principles for qualification and certification of NDT personnel BS EN 729 Quality requirements for welding Fusion welding of metallic materials EN 729-1:1994Part 1:1995 Guidelines for selection and use BS 5750 Quality systems EN 29001:19871)Part 1:1987 Specification for design/development,
49、production, installation and servicing BS 5750 Quality systems EN 29002:19871)Part 2:1987 Specification for production and installation 1) EN 29001:1987 and EN 29002:1987 have been superseded by EN ISO 9001:1994 and EN ISO 9002:1994 respectively, which have been implemented as BS EN ISO 9001:1994 and BS EN ISO 9002:1994 respectively. Licensed Copy: sheffieldun sheffieldun, na, Tue Nov 07 05:34:15 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BSI 389 Chiswick High Road