《BS EN 13067-2003 Plastics welding personnel. Qualification testing of welders. Thermoplastics welded assemblies.pdf》由会员分享，可在线阅读，更多相关《BS EN 13067-2003 Plastics welding personnel. Qualification testing of welders. Thermoplastics welded assemblies.pdf（38页珍藏版）》请在三一文库上搜索。
1、BRITISH STANDARD BS EN 13067:2003 Plastics welding personnel Qualification testing of welders Thermoplastics welded assemblies The European Standard EN 13067:2003 has the status of a British Standard ICS 25.160.10 ? Licensed Copy: :FULLNAME, : DATE, Uncontrolled Copy, (c) BSI BS EN 13067:2003 This B
2、ritish Standard was published under the authority of the Standards Policy and Strategy Committee on 25 April 2003 BSI 25 April 2003 ISBN 0 580 41679 8 National foreword This British Standard is the official English language version of EN 13067:2003. The UK participation in its preparation was entrus
3、ted to Technical Committee PRI/80, Welding of plastics, which has the responsibility to: A list of organizations 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 thi
4、s document may be found in the BSI Catalogue under the section entitled “ International Standards Correspondence 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
5、contract. Users are responsible for its correct application. Compliance with a British Standard 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 proposa
6、ls for change, and keep the UK interests informed; monitor related international and European 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 34, an inside back cover and a back cover. The BSI co
7、pyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments Licensed Copy: :FULLNAME, : DATE, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 13067 April 2003 ICS 25.160.10 English vers
8、ion Plastics welding personnel - Qualification testing of welders - Thermoplastics welded assemblies Personnel en soudage des plastiques - Epreuve de qualification des soudeurs - Assemblages souds thermoplastiques Kunststoffschweipersonal - Anerkennungsprfung von Schweiern - Thermoplastische Schweiv
9、erbindungen This European Standard was approved by CEN on 9 September 2002. 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 biblio
10、graphical 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, French, German). A version in any other language made by translation under the responsibility of a
11、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, Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Neth
12、erlands, Norway, Portugal, Slovakia, 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 2003 CENAll rights of exploitation in any form and by any me
13、ans reserved worldwide for CEN national Members. Ref. No. EN 13067:2003 E Licensed Copy: :FULLNAME, : DATE, Uncontrolled Copy, (c) BSI EN 13067:2003 (E) 2 Contents page Foreword3 Introduction.4 1Scope 4 2Normative references 5 3Terms and definitions5 4Admission to the test 7 5Testing of skill and kn
14、owledge.7 5.1General7 5.2Practical test.7 5.3Theoretical test.7 6Duty of Plastics Welding Examiner14 7Range of qualification .14 8Welding of test piece.14 8.1Test piece14 8.2Inspection requirements.14 8.3Difficulties and corrections whilst welding the test piece.14 9Test piece and test specimens, sh
15、apes and dimensions15 10Evaluation and acceptance criteria of test piece(s) and test specimens 20 10.1General20 10.2Visual examination 21 10.3Destructive tests21 11Test result and qualification test certificate22 11.1Practical test.22 11.2Theoretical test.22 11.3Overall assessment .22 11.4Qualificat
16、ion test certificate23 12Failed test .23 13Period of validity23 13.1Initial qualification .23 13.2Prolongation.24 14Qualification test certificate renewal .24 Annex A (informative) Welding recording sheet25 Annex B (informative) Welders test certificate format26 Annex C (informative) PWE evaluation
17、sheet for practical test27 Licensed Copy: :FULLNAME, : DATE, Uncontrolled Copy, (c) BSI ? EN 13067:2003 (E) 3 Foreword This document (EN 13067:2003) has been prepared by Technical Committee CEN/TC 249 “Plastics”, the secretariat of which is held by IBN. This European Standard shall be given the stat
18、us of a national standard, either by publication of an identical text or by endorsement, at the latest by October 2003, and conflicting national standards shall be withdrawn at the latest by October 2003. Annexes A, B and C are informative. According to the CEN/CENELEC Internal Regulations, the nati
19、onal standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland
20、 and the United Kingdom. Licensed Copy: :FULLNAME, : DATE, Uncontrolled Copy, (c) BSI ? EN 13067:2003 (E) 4 Introduction This standard covers the principles to be observed in the qualification testing of welder performance for the welding of thermoplastic materials. The ability of the welder to foll
21、ow verbal or written instructions and testing of his skill are important factors in ensuring the quality of the welded product. This standard is intended to provide the basis for the mutual recognition by examining bodies for qualification relating to welders competence in the various fields of appl
22、ication. 1 Scope This standard specifies the method of testing the knowledge and skill of a welder who is required to carry out welds on thermoplastics in new constructions and repair work. The skill examination of a welder is an essential condition for the assurance of the quality of the welding wo
23、rk. The application of this standard guarantees that the examination is carried out according to a uniform test procedure. The standard applies when the contractor or the authorities responsible for the application require it. Gas and water utility network industries with alternative qualification p
24、rogrammes are excluded from this standard. This standard applies to the following welding processes: hot gas welding: round nozzle, high speed nozzle, wedge; extrusion welding; heated tool welding: butt, saddle, socket, wedge; electrofusion welding: socket, saddle. This standard applies to the weldi
25、ng of the following products: sheet; pipe; fittings; lining membrane. This standard covers the welding of the following groups of materials: for sheets, pipes and fittings: group 1: PVC (it includes all kinds of PVC-U and ABS and PC); group 2: PP (it includes all kinds of PP); group 3: PE (it includ
26、es all kinds of PE, PB); group 4: PVDF; Licensed Copy: :FULLNAME, : DATE, Uncontrolled Copy, (c) BSI ? EN 13067:2003 (E) 5 group 5: ECTFE or PFA or FEP. for lining membranes: group 6: PVC-P; group 7: PE (it includes all kinds of PE); group 8: ECB. 2 Normative references This European Standard incorp
27、orates 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, subsequent amendments to or revisions of any of these publications apply to this Euro
28、pean 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 12814-1, Testing of welded joints of thermoplastics semi-finished products - Part 1: Bend test. EN 12814-2:2000, Testing of
29、 welded joints of thermoplastics semi-finished products - Part 2: Tensile test. EN 12814-4, Testing of welded joints of thermoplastics semi-finished products - Part 4: Peel test. EN 12814-8, Testing of welded joints of thermoplastics semi-finished products - Part 8: Requirements. EN 13100-1, Non des
30、tructive testing of welded joints of thermoplastics semi-finished products - Part 1: Visual examination. 3 Terms and definitions For the purposes of this European Standard, the following terms and definitions apply: 3.1 welding process 3.1.1 general technique characterized by the method of softening
31、 to obtain permanent assembly 3.1.2 hot gas welding welding process in which the materials to be unified are softened by hot air or inert gas and are pressed together 3.1.2.1 round nozzle welding process in which the pressure is applied via the welding material or a suitable attachment such as a pre
32、ssure roller 3.1.2.2 high-speed nozzle welding process in which the welding material is suitably guided and pre-heated, the nozzle tip is provided with a profiled area to apply the welding pressure 3.1.3 extrusion welding welding process in which an extruder unit with a melting chamber gives the ext
33、ruded material required by the thickness and shape of the joint. Hot air or inert gas heats simultaneously the base material Licensed Copy: :FULLNAME, : DATE, Uncontrolled Copy, (c) BSI ? EN 13067:2003 (E) 6 3.1.4 heated tool welding welding process in which the joint surfaces are adequately heated
34、by exposure, through contact or non-contact, to heated elements and are welded under pressure 3.1.5 electrofusion welding welding process concerning a joint between a socket or saddle electrofusion fitting and pipe or fitting with spigotted ends. The electrofusion fittings are heated by the Joule ef
35、fect of the heating element incorporated at their jointing surfaces, causing the material to melt and the pipe and fitting surfaces to weld 3.1.6 heated wedge welding process in which the lining membrane welded is gripped by rollers which guide and propel the welding machine which uses either hot ga
36、s to heat the lining membrane and the wedge to effect the weld or electrically heated wedge to heat the lining membrane in the area being welded 3.2 Welding Procedure Specification (WPS) document providing in detail the required variables for a specific application to assure repeatability 3.3 weldin
37、g record sheet document providing in detail the variables used during the practical test 3.4 welder person making a welded assembly by any process, whose manual skill and knowledge are two of the determining factors influencing the quality of the welded joint, or person performing a welding operatio
38、n by means of mechanical or automatic equipment 3.5 plastics fabricator person whose manual skill and knowledge in producing assemblies including marking out, developing complex shapes and forms, requires welding as an essential part 3.6 Plastics Welding Examiner (PWE) qualified person acceptable to
39、 the contracting parties who verifies the compliance with this standard 3.7 manufacturer company, contractor or organization who is responsible for the welding 3.8 range of qualification welding processes, types of joint, materials, thicknesses and diameters for which a welder is qualified 3.9 quali
40、fication test theoretical and practical tests in order to verify the knowledge and the skill of the welder 3.10 test piece welded assembly which is used in the test 3.11 test specimen part or portion cut from the test piece for the test specified Licensed Copy: :FULLNAME, : DATE, Uncontrolled Copy,
41、(c) BSI ? EN 13067:2003 (E) 7 3.12 training centre educational establishment for training plastics welding personnel and/or Plastics Welding Examiner 3.13 test house establishment having all relevant test equipment to carry out the required tests 4 Admission to the test Only welders whose training a
42、nd/or for whose previous activities show that they are likely to pass the planned test may be admitted. As a rule this is the case if one of the following conditions is met: completed apprenticeship as plastics fabricator; at least two years experience as a plastics welder (companys certificate); co
43、mpletion of a technical and practical training course in preparation for the plastic welders qualification test. 5 Testing of skill and knowledge 5.1 General During the test, the welder shall demonstrate his practical skill according to 5.2 and his theoretical knowledge according to 5.3. 5.2 Practic
44、al test The welder shall complete the test piece specified by the required sub-group in Table 1 or Table 2 in accordance with the relevant WPS. All welding equipments, materials and documents necessary to complete the test piece shall be available to the welder. The time taken by the welder to compl
45、ete the test piece shall correspond to that taken under production conditions. 5.3 Theoretical test The welders knowledge of the practical working rules for skilful and safe working shall be established in the theoretical test. This test is carried out under the supervision of the PWE. The welder sh
46、all answer a minimum of 20 questions relevant to the qualification testing. These questions shall be presented to the candidate in a written form. A multiple-choice questions form is appropriate for this test. Completion of the theoretical test shall not exceed one hour, be continuous without access
47、 to teaching aids. The questions shall cover the following subjects, as appropriate: designation and rules for welding of thermoplastics to which the test is designed to apply, meaning of the welding signs and symbols of the range of work; operation and monitoring of the welding equipment; welding p
48、rocesses; Licensed Copy: :FULLNAME, : DATE, Uncontrolled Copy, (c) BSI ? EN 13067:2003 (E) 8 knowledge concerning on-site welding; correct preparation of the work pieces for welding; familiarity of the characteristics of thermoplastics within the sub-groups; preventing and correcting faults when mak
49、ing welds; knowledge concerning the types of imperfections for the applied welding process(es); knowledge of the WPS and welding record sheet; awareness of the consequences of misapplying welding parameters and/or procedures; knowledge of non-destructive examinations and destructive tests necessary for the applied welding process(es); awareness of health and