Welding coordination Tasks and responsibilities

BRITISH STANDARD BS EN ISO 14731:2006 Welding coordination Tasks and responsibilities The European Standard EN ISO 14731:2006 has the status of a British Standard ICS 25.160.01

BS EN ISO 14731:2006 National foreword This 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 It supersedes BS EN 719:1994 which is withdrawn. The 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 provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard cannot confer immunity from legal obligations. This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 November 2006 Amendments issued since publication Amd. No. Date Comments BSI 2006 ISBN 0 580 49515 9

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM EN ISO 14731 October 2006 ICS 25.160.01 Supersedes EN 719:1994 English Version Welding coordination - Tasks and responsibilities (ISO 14731:2006) Coordination en soudage - Tâches et responsabilités (ISO 14731:2006) Schweißaufsicht - Aufgaben und Verantwortung (ISO 14731:2006) 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 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 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 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, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2006 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 14731:2006: E

Foreword 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 collaboration 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 latest 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, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.

INTERNATIONAL STANDARD ISO 14731 Second edition 2006-10-01 Welding coordination Tasks and responsibilities Coordination en soudage Tâches et responsabilités Reference number ISO 14731:2006(E)

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Contents 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 Specification 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 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 iii

Foreword ISO (the International Organization for Standardization) is a 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 represented 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 drafted 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 Standard 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 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 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 of ISO/TC 44/SC 11 via your national standards body. A complete listing of these bodies can be found at http://www.iso.org. iv

Introduction Welding is a special process, which requires the coordination of welding operations in order to establish confidence in welding fabrication and reliable 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. v

Welding coordination Tasks and responsibilities 1 Scope This International Standard identifies 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 contract 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) applies. 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 organization 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 welding 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. 1

4 Tasks and responsibilities 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 requirements, 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, 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 than 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 least 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 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 organization 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 them to carry out the assigned tasks. 2

6 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 tasks. 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 manufacturing 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) shall 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 and 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 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 constructions (see Annex A). 3

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 coordination 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 personnel fulfilling the requirements of these documents, or holding acceptable national qualifications, may be considered to satisfy the relevant requirements of 6.2. 4

Annex B (normative) Essential welding-related tasks in accordance with ISO 3834 to be considered when appropriate 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 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 accessibility for inspection and nondestructive 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 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. 5

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 and handling; c) personal protective equipment and other safety equipment, directly associated with the applicable manufacturing process; d) equipment maintenance; e) equipment verification and validation. B.6 Production planning The following elements shall be considered with regard to production planning: a) reference to the appropriate procedure specifications for welding and allied processes; b) the sequence in which the welds are to be made; c) environmental conditions (e.g. protection from wind, temperature and rain); d) the allocation of qualified personnel; e) equipment for preheating and post-heat treatment, including temperature indicators; f) the arrangement for any production test. B.7 Qualification of the welding procedures With regard to the qualification of the welding procedures, the method and range of qualification shall be considered. B.8 Welding procedure specifications With regard to welding procedure specifications, the range of qualification shall be considered. B.9 Work instructions With regard to work instructions, the issuing and use of work instructions shall be considered. 6

B.10 Welding consumables The following elements shall be considered with regard to welding consumables: a) compatibility; b) delivery conditions; c) any supplementary requirements in the welding consumable purchasing specifications, including the type of welding consumable inspection document; d) the storage and handling of welding consumables. B.11 Materials The following elements shall be considered with regard to materials: a) any supplementary requirements in the material purchasing specifications, including the type of inspection document for the material; b) the storage and handling of parent material; c) traceability. B.12 Inspection and testing before welding The following elements shall be considered with regard to inspection and testing before welding: a) the suitability and validity of welders' and welding operators' qualification certificates; b) the suitability of the welding procedure specification; c) the identity of the parent material; d) the identity of welding consumables; e) joint preparation (e.g. shape and dimensions); f) fit-up, jigging and tacking; g) any special requirements in the welding procedure specification (e.g. prevention of distortion); h) the suitability of working conditions for welding, including the environment. 7

B.13 Inspection and testing during welding The following elements shall be considered with regard to inspection and testing during welding: a) essential welding parameters (e.g. welding current, arc voltage and travel speed); b) the preheating/interpass temperature; c) the cleaning and shape of runs and layers of weld metal; d) back gouging; e) the welding sequence; f) the correct use and handling of welding consumables; g) control of distortion; h) any intermediate examination (e.g. checking dimensions). B.14 Inspection and testing after welding The following elements shall be considered with regard to inspection and testing after welding: a) the use of visual inspection (for completeness of welding, weld dimensions, shape); b) the use of non-destructive testing; c) the use of destructive testing; d) the form, shape, tolerance and dimensions of the construction; e) the results and records of post-operations (e.g. post-weld heat treatment, ageing). B.15 Post-weld heat treatment With regard to post-weld heat treatment, performance in accordance with the specification shall be considered. B.16 Non-conformance and corrective actions With regard to non-conformance and corrective actions, the necessary measures and actions (e.g. weld repairs, re-assessment of repaired welds, corrective actions) shall be considered. B.17 Calibration and validation of measuring, inspection and testing equipment With regard to the calibration and validation of measuring, inspection and testing equipment, the necessary methods and actions shall be considered. 8

B.18 Identification and traceability The following elements shall be considered with regard to identification and traceability: a) the identification of production plans; b) the identification of routing cards; c) the identification of weld locations in construction; d) the identification of non-destructive testing procedures and personnel; e) the identification of the welding consumable (e.g. designation, trade name, manufacturer of consumables and batch or cast numbers); f) the identification and/or traceability of parent material (e.g. type, cast number); g) the identification of the location of repairs; h) the identification of the location of temporary attachments; i) traceability for fully mechanized and automatic welding units to specific welds; j) traceability of welder and welding operators to specific welds; k) traceability of welding procedure specifications to specific welds. B.19 Quality records With regard to quality records, the preparation and maintenance of the necessary records (including subcontracted activities) shall be considered. 9

Bibliography [1] ISO 3834-2, Quality requirements for fusion welding of metallic materials Part 2: Comprehensive quality requirements [2] ISO 3834-3, Quality requirements for fusion welding of metallic materials Part 3: Standard quality requirements [3] ISO 3834-4, Quality requirements for fusion welding of metallic materials Part 4: Elementary quality requirements [4] ISO 3834-5, Quality requirements for fusion welding of metallic materials Part 5: Documents with which it is necessary to conform to claim conformity to the quality requirements of ISO 3834-2, ISO 3834-3 or ISO 3834-4 10

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