1、 g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58The European Standard EN ISO 14731:2006 has the status of a British StandardICS 25.160.01Welding co
2、ordination Tasks and responsibilitiesBRITISH STANDARDBS EN ISO 14731:2006BS EN ISO 14731:2006This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 November 2006 BSI 2006ISBN 0 580 49515 9Amendments issued since publicationAmd. No. Date Commentsc
3、ontract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.National forewordThis British Standard was published by BSI. It is the UK implementation of EN ISO 14731:2006. It supersedes BS EN 719:1994 which is withdrawn.T
4、he UK participation in its preparation was entrusted to Technical Committee WEE/36, Qualification of welding personnel and welding procedures.A list of organizations represented on WEE/36 can be obtained on request to its secretary.This publication does not purport to include all the necessary provi
5、sions of a EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN ISO 14731October 2006ICS 25.160.01 Supersedes EN 719:1994 English VersionWelding coordination - Tasks and responsibilities (ISO14731:2006)Coordination en soudage - Tches et responsabilits (ISO14731:2006)Schweiaufsicht - Aufgaben und Verant
6、wortung (ISO14731:2006)This European Standard was approved by CEN on 29 September 2006.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists
7、and bibliographical references concerning such nationalstandards 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 version in any other language made by translationunder the responsibil
8、ity of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy
9、, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania,Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Bru
10、ssels 2006 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN ISO 14731:2006: EForeword This document (EN ISO 14731:2006) has been prepared by Technical Committee CEN/TC 121 “Welding“, the secretariat of which is held by DIN, in collabo
11、ration with Technical Committee ISO/TC 44 “Welding and allied processes“. 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 April 2007, and conflicting national standards shall be withdrawn at the l
12、atest by April 2007. This document supersedes EN 719:1994. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Ge
13、rmany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EN ISO 14731:2006Reference numberISO 14731:2006(E)INTERNATIONAL STANDARD ISO14731Second edition200
14、6-10-01Welding coordination Tasks and responsibilities Coordination en soudage Tches et responsabilits EN ISO 14731:2006ii iiiContents Page Foreword iv Introduction v 1 Scope . 1 2 Normative references . 1 3 Terms and definitions. 1 4 Tasks and responsibilities. 2 4.1 Quality-related tasks. 2 4.2 Sp
15、ecification of tasks and responsibilities 2 5 Job description . 2 5.1 General. 2 5.2 Tasks 2 5.3 Responsibilities 2 6 Technical knowledge 3 6.1 General knowledge requirements of all welding coordination personnel 3 6.2 Specific knowledge requirements of responsible welding coordination personnel . 3
16、 Annex A (informative) Recommendations for technical knowledge in welding 4 Annex B (normative) Essential welding-related tasks in accordance with ISO 3834 to be considered when appropriate 5 Bibliography . 10 EN ISO 14731:2006iv Foreword ISO (the International Organization for Standardization) is a
17、 worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represente
18、d on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are draf
19、ted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Sta
20、ndard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 14731 was prepared
21、by the European Committee for Standardization (CEN) Technical Committee CEN/TC 121, Welding, in collaboration with Technical Committee ISO/TC 44, Welding and allied processes, Subcommittee SC 11, Qualification requirements for welding and allied processes personnel, in accordance with the Agreement
22、on technical cooperation between ISO and CEN (Vienna Agreement). This second edition cancels and replaces the first edition (ISO 14731:1997), which has been technically revised. Requests for official interpretations of any aspect of this International Standard should be directed to the Secretariat o
23、f ISO/TC 44/SC 11 via your national standards body. A complete listing of these bodies can be found at http:/www.iso.org. EN ISO 14731:2006vIntroduction Welding is a special process, which requires the coordination of welding operations in order to establish confidence in welding fabrication and rel
24、iable performance in service. The tasks and responsibilities of personnel involved in welding-related activities (e. g. planning, executing, supervising and inspection) should be clearly defined. EN ISO 14731:20061Welding coordination Tasks and responsibilities 1 Scope This International Standard id
25、entifies the quality-related responsibilities and tasks included in the coordination of welding-related activities. In any manufacturing organization, welding coordination can be undertaken by one or a number of persons. Welding coordination requirements can be specified by a manufacturer, a contrac
26、t or an application standard. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) appli
27、es. ISO 3834-1, Quality requirements for fusion welding of metallic materials Part 1: Criteria for the selection of the appropriate level of quality requirements 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 manufacturer person or organizat
28、ion responsible for the welding production 3.2 welding coordination coordination of manufacturing operations for all welding and welding-related activities 3.3 welding coordinator person responsible and competent to perform welding coordination NOTE There might be a need for nominating different wel
29、ding coordinators for different tasks. 3.4 welding inspection conformity evaluation of welding-related matters by observation and judgement accompanied as appropriate by measurement or testing NOTE Welding inspection is a part of welding coordination. EN ISO 14731:20062 4 Tasks and responsibilities
30、4.1 Quality-related tasks Annex B shall be used as a guide to allocate quality-related tasks and responsibilities to welding coordination personnel. It may be supplemented for special application. Not all the items shall necessarily apply to all manufacturing organizations or quality system requirem
31、ents, and a selection should be made as appropriate. For example, where there is no destructive testing or non-destructive testing, B.14 b) and c) do not apply. 4.2 Specification of tasks and responsibilities The tasks of the welding coordinator shall be selected from the applicable part of ISO 3834
32、, in accordance with the criteria defined in ISO 3834-1 (see Annex B). Each single activity in Annex B may be associated with a number of tasks and responsibilities, such as: specification and preparation, control, inspection, check or witnessing. Where welding coordination is carried out by more th
33、an one person, the tasks and responsibilities shall be clearly allocated, such that responsibility is clearly defined and the persons are qualified for each specific welding coordination task. Welding coordination is the sole responsibility of the manufacturer. The manufacturer shall appoint at leas
34、t one responsible welding coordinator. Welding coordination may be subcontracted. However, compliance to this International Standard remains the responsibility of the manufacturer. 5 Job description 5.1 General A job description is required for the welding coordination personnel, which shall include
35、 their tasks and responsibilities. 5.2 Tasks For identification of the tasks assigned to the welding coordination personnel, see 4.2 and Annex B. 5.3 Responsibilities The responsibilities assigned to the welding coordination personnel are identified as follows: their position in the manufacturing or
36、ganization and their responsibilities; the extent of authorization accorded to them to accept by signature on behalf of the manufacturing organization, as needed in order to fulfil the assigned tasks, e.g. for procedure specification and supervision reports; the extent of authorization accorded to t
37、hem to carry out the assigned tasks. EN ISO 14731:200636 Technical knowledge 6.1 General knowledge requirements of all welding coordination personnel For all tasks assigned, welding coordinators shall be able to demonstrate adequate technical knowledge to ensure satisfactory performance of these tas
38、ks. The following factors shall be considered: general technical knowledge; specialized technical knowledge in welding and allied processes relevant to the assigned tasks, which shall be attained by a combination of theoretical knowledge, training and/or experience. The extent of required manufactur
39、ing experience, education and technical knowledge shall be decided by the manufacturing organization, and shall depend on the assigned tasks and responsibilities. 6.2 Specific knowledge requirements of responsible welding coordination personnel Responsible welding coordination personnel (see 4.2) sh
40、all be allocated from one of the following groups, depending on the nature and/or complexity of the production: a) personnel with comprehensive technical knowledge, where full technical knowledge is required, in accordance with 6.1, for the planning, executing, supervising and testing of all tasks a
41、nd responsibilities in welding fabrication (see Annex A); b) personnel with specific technical knowledge, where the level of technical knowledge needs to be sufficient for the planning, executing, supervising and testing of the tasks and responsibilities in welding fabrication within a selective or
42、limited technical field (see Annex A); c) personnel with basic technical knowledge, where the level of technical knowledge needs to be sufficient for the planning, executing, supervising and testing of the tasks and responsibilities within a limited technical field, involving only simple welded cons
43、tructions (see Annex A). EN ISO 14731:20064 Annex A (informative) Recommendations for technical knowledge in welding The International Institute of Welding (IIW) has, on a voluntary basis, prepared recommendations for minimum requirements for education, examination and qualification of welding coord
44、ination personnel. The recommendations are stated in the following documents: International Welding Engineer (IWE), Doc. IAB-002-2000/EWF-409; International Welding Technologist (IWT), Doc. IAB-003-2000/EWF-410; International Welding Specialist (IWS), Doc. IAB-004-2000/EWF-411. Welding coordination
45、personnel fulfilling the requirements of these documents, or holding acceptable national qualifications, may be considered to satisfy the relevant requirements of 6.2. EN ISO 14731:20065Annex B (normative) Essential welding-related tasks in accordance with ISO 3834 to be considered when appropriate
46、B.1 Review of requirements The following elements shall be considered in a review of requirements: a) the product standard to be used, together with any supplementary requirements; b) the capability of the manufacturer to meet the prescribed requirements. B.2 Technical review The following elements
47、shall be considered in a technical review: a) the parent material(s) specification and welded joint properties; b) the joint location with relation to the design requirements; c) quality and acceptance requirements for welds; d) the location, accessibility and sequence of welds, including accessibil
48、ity for inspection and non-destructive testing; e) other welding requirements, e.g. batch testing of consumables, ferrite content of weld metal, ageing, hydrogen content, permanent backing, use of peening, surface finish, weld profile; f) the dimensions and details of joint preparation and completed
49、 weld. B.3 Sub-contracting With regard to sub-contracting, the suitability of any sub-contractor for welding fabrication shall be considered. B.4 Welding personnel With regard to welding personnel, the qualification of welders and welding operators, brazers and brazing operators shall be considered. EN ISO 14731:20066 B.5 Equipment The following elements shall be considered with regard to equipment: a) the suitability of welding and associated equipment; b) auxiliaries and equipment supply, identification
