1、BRITISH STANDARD Qualification testing of welders for under-water welding Part 2: Diver-welders and welding operators for hyperbaric dry welding The European Standard EN IS0 15618-2:2001 has the status ofa British Standard ICs 25.160.10 BS EN IS0 15618-212002 Wk present to the responsible internatio
2、nal/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. - A list of organizations represented on this committee can be obtained on request to its se
3、cretary. Cr oss-r e fer enc e s The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI
4、Standards Electronic Catalogue. 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. This Brit
5、ish Standard. having - been prepared under the direction of the Engineering Summary Of pages Sector Policv and Stratew This document comprises a front cover, an inside front cover, the EN title page, -_ Committee, was published pages 2 to 25 and a back cover. under the authority of the Standards pol
6、icy and Strategy Committee on 15 January 2002 The BSI copyright date displayed in this document indicates when the document was last issued. O BSI 15 January 2002 ISBN O 580 36543 3 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN IS0 15618-2 December 2001 ICs 25.160.01 English version Qualifica
7、tion testing of welders for under-water welding - Part 2: Diver-welders and welding operators for hyperbaric dry welding (IS0 1561 8-212001) Epreuve de qualification des soudeurs pour le soudage sous leau - Partie 2: Scaphandriers soudeurs et oprateurs soudeurs pour le soudage hyperbare en caisson (
8、IS0 15618-2:2001) Prfung von Schweiern fr Unterwasserschweien - Teil 2: Unterwasserschweier und Bediener von Schweianlagen fr Trockenschweien unter Uberdruck (IS0 15618-212001) This European Standard was approved by CEN on 14 August 2000 CEN members are bound to comply with the CENKENELEC Internal R
9、egulations 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 Management Centre or to any CEN member. This
10、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 Management Centre has the same status as the official versions. CEN members are the na
11、tional standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION EUROPISCHES KOMITEE FR NORMUNG COMIT EUROP
12、EN DE NORMALISATION Management Centre: rue de Stassart, 36 B-1050 Brussels O 2001 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN IS0 15618-2:2001 E EN IS0 15618-2:2001 (E) Contents Page Foreword . 3 Introduction . 4 1 Scope 4 2 No
13、rmative references . 4 3 Terms anddefinitions 6 4.1 General . 6 4.2 Testpiece 6 4.3 Consumable 6 4.4 Miscellaneous . 6 5.1 General . 7 4 Symbols and abbreviations 6 5 Essential variables for approval testing . 7 5.2 Welding processes . 7 5.3 Joint types (butt and fillet welds) 7 5.4 Materialgroups 7
14、 5.7 Welding positions 8 5.8 Hyperbaric environment 8 6.2 Welding process . 9 6.4 Material groups 10 6.7 Welding positions 10 6.8 Hyperbaric environment 11 7 Examination and testing 12 7.3 Shapes and dimensions of test pieces . 12 7.4 Welding conditions . 14 7.6 Test pieces and test specimens 15 8 A
15、cceptance requirements for test pieces 20 10 Period of validity 21 10.1 Initial approval . 21 5.5 Consumables . 7 5.6 Dimensions . 8 6 Rangeofapproval . 8 6.1 General . 8 6.3 Jointtypes . 9 6.5 Consumables . 10 6.6 Dimensions . 10 7.1 General 12 7.2 Supervision . 12 7.5 Testmethods . 15 9 Re-tests .
16、 20 10.2 Prolongation 21 11 Certificate . 21 12 Designation 22 Annex A (informative) 23 Diver-welder or welding operator approval test certificate for hyperbaric dry welding . Annex B (informative) Job knowledge 25 2 EN IS0 15618-212001 (E) Foreword The text of EN IS0 15618-2:2001 has been prepared
17、by Technical Committee CEN/TC 121 “Welding“, the secretariat of which is held by DS, 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 endorseme
18、nt, at the latest by June 2002, and conflicting national standards shall be withdrawn at the latest by June 2002. According to the CENKENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech R
19、epublic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. 3 EN IS0 15618-212001 (E) Introduction This standard covers the principles to be observed in the approval testing of diver-welder
20、 or welding operator performance for the fusion welding of steels in a hyperbaric, dry environment. The ability of the diver-welder or welding operator to follow verbal or written instructions and testing of his skill are therefore important factors in ensuring the quality of the welded product. Tes
21、ting of skill to this standard depends on welding methods in which uniform rules and test conditions are complied with, and standard test pieces are used. This standard is intended to provide the basis for the mutual recognition by examining bodies for approval relating to diver-welders or welding o
22、perators competence in the various fields of application. Tests should be carried out in accordance with this standard unless more severe tests are specified by the relevant application standard when these should be applied. The test weld may be used to approve a welding procedure and a diver-welder
23、 or welding operator, provided that all the relevant requirements, e.g. test piece dimensions, are satisfied. The diver-welders or welding operators skill and job knowledge continue to be approved only if the diver-welder or welding operator are working with reasonable continuity on welding work wit
24、hin the extent of approval. 1 Scope This standard applies to welding processes where the skill of the diver-welder or welding operator has a significant influence on weld quality. This standard specifies essential requirements, ranges of approval, test conditions, acceptance requirements and certifi
25、cation for the approval testing of diver-welder or welding operator performance for the welding of steels underwater in a hyperbaric dry environment. The recommended format for the certificate of approval testing is given in Annex A. During the approval test the diver-welder or welding operator shou
26、ld be required to show adequate practical experience and job knowledge (test non mandatory) of the welding processes, materials and safety requirements for which he is to be approved, information on these aspects is given in Annex B. This standard is applicable when the diver-welders or welding oper
27、ators approval testing is required by the purchaser, by inspection authorities or by other organisations. The welding processes referred to in this standard include fusion welding processes which are designated as manual or partly mechanized welding for diver-welders and fully mechanized or automati
28、c welding for operators (see 5.2). All new approvals are in accordance with this standard from the date of this issue. However, this standard does not invalidate previous diver-welder or welding operator approvals made to former national standards or specifications, providing the intent of the techn
29、ical requirements is satisfied and the previous approvals are relevant to the application and production work on which they are to be employed. Also, where additional tests should be carried out to make the approval technically equivalent it is only necessary to do the additional tests on a test pie
30、ce which should be made in accordance with this standard. Consideration of previous approvals to former national standards or specifications should be at the time of the enquirykontract stage and agreed between the contracting parties. The certificate of approval testing is issued under the sole res
31、ponsibility of the examiner or examining body. 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 publications are listed hereafter. For dated
32、 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 (including amendments). EN 288-1 Specification and a
33、pproval of welding procedures for metallic materials - Part 1 : General rules for fusion welding Specification and approval of welding procedures for metallic materials - Part 2: Welding procedure specification for arc welding EN 288-2 4 EN IS0 15618-212001 (E) EN 499 Welding consumables - Covered e
34、lectrodes for manual metal arc welding of non alloy and fine grain steels - Classification Non-destructive testing - Penetrant testing - Part 1 : General principles Destructive tests on welds in metallic materials - Bend tests Non-destructive examination of fusion welds - Visual examination Non-dest
35、ructive examination of welds - Magnetic particle examination of welds EN 571-1 EN 910 EN 970 EN 1290, EN 1320 Destructive tests on welds in metallic materials - Fracture test EN 1321 Destructive tests on welds in metallic materials - Macroscopic and microscopic examination of welds Welding personnel
36、 - Approval testing of welding operators for fusion welding and resistance weld setters for fully mechanized and automatic welding of metallic materials Non-destructive examination of welds - Radiographic examination of welded joints Welding consumables - Covered electrodes for manual metal arc weld
37、ing of stainless and heat resisting steels - Classification Non destructive examination of welds - Ultrasonic examination of welded joints Welding and allied processes - Nomenclature of processes and reference numbers (IS0 4063:1998) Welding - Fusion-welded joints in steel, nickel, titanium and thei
38、r alloys (beam welding excluded) - Quality levels for imperfections (ISO/DIS 581 7:2000) Welding and allied processes - Classification of geometric imperfections in metallic materials - Part 1 : Fusion welding (IS0 6520-1 :1998) Welds - Working positions - Definitions of angles of slope and rotation
39、 (IS0 6947:1993) Welding - Guidelines for a metallic material grouping system (ISO/TR 15608:2000) Welding and allied processes - Vocabulary - Part 1 : Metal welding processes Covered electrodes for manual arc welding of stainless and other similar high alloy steels - Code of symbols for identificati
40、on EN 1418 EN 1435 EN 1600 EN 1714 EN IS0 4063 prEN IS0 5817 EN IS0 6520-1 EN IS0 6947 CR IS0 15608 IS0 857-1 IS0 3581 5 EN IS0 15618-212001 (E) 3 Terms and definitions For the purposes of this standard, the terms and definitions listed below and in EN 288-1 apply. 3.1 d iver-welder a person who per
41、forms the welding under hyperbaric conditions 3.2 hyperbaric welding operator a person who performs fully mechanized or automatic welding in dry hyperbaric conditions (see also EN 1418) 3.3 hyperbaric dry welding the process of welding in a dry underwater environment wherein the gaseous atmosphere a
42、cting on the welding arc and weld is at an elevated pressure the level of which is determined by the depth of water 3.4 habitat the sealed enclosure surrounding the work area from which the water has been displaced by a gaseous medium to provide a dry environment for performance of the welding opera
43、tion 4 Symbols and abbreviations 4.1 General Where the full wording is not used, the following symbols and abbreviations shall be used when completing the test certificate (see Annex A). 4.2 a BW D FW P t T Z 4.3 nm wm B S fc mc 4.4 bs gb gg mb nb ng wd ss Test piece nominal throat thickness butt we
44、ld outside diameter of pipe fillet weld plate plate or pipe wall thickness Pipe leg length of fillet weld Consumable no filler metal with filler metal (solid wire) basic covering other coating types flux cored metal cored Miscellaneous welding from both sides welding with gas backing back gouging or
45、 back grinding of welds welding with backing material welding without backing no back gouging or no back grinding single-side welding water depth 6 EN IS0 15618-212001 (E) 5 5.1 General The criteria specified in this clause shall be examined in order to identify the ability of the diver-welder or we
46、lding operator in these areas. Each criterion is considered to be a significant factor in the approval testing. The diver-welder or welding operator shall be tested separately. The approval test shall be carried out on test pieces and is independent of the type of construction. Approval of a diver w
47、elder according to this standard does not approve a welding operator and vice versa. Essential variables for approval testing 5.2 Welding processes Welding processes are defined in IS0 857-1 and reference numbers of welding processes for symbolic representation are listed in EN IS0 4063. This standa
48、rd covers the following welding processes applicable in hyperbaric dry environment. 111 114 131 135 136 137 141 15 manual metal arc welding (metal arc welding with covered electrode); self-shielded tubular-cored arc welding; metal inert gas welding, MIG welding; metal active gas welding, MAG welding
49、; tubular cored metal arc welding with active gas shield; tubular cored metal arc welding with inert gas shield; tungsten inert gas welding, TIG welding; plasma arc welding. Other fusion welding processes by agreement. 5.3 Test pieces shall be produced for butt weld (BW) and fillet weld (FW) in plates (P) or pipes) (T) for approval tests in accordance with 7.3. Joint types (butt and fillet welds) 5.4 Material groups The designation of steel groups of material as defined in CR IS0 15608 shall apply. This standard applies to the following material groups according to CR
