SIST EN 287-1:2004
(Main)Qualification test of welders - Fusion welding - Part 1: Steels
Qualification test of welders - Fusion welding - Part 1: Steels
This European Standard defines the qualification test of welders for the fusion welding of steels.
It provides a set of technical rules for a systematic qualification test of the welder, and enables such qualifications to be uniformly accepted independently of the type of product, location and examiner/examining body.
When qualifying welders, the emphasis is placed on the welders ability to manually manipulate the electrode/ welding torch/ welding blowpipe and thereby producing a weld of acceptable quality.
The welding processes referred to in this European Standard include those fusion welding processes which are designated as manual or partly mechanized welding. It does not cover fully mechanized and automated welding processes (see EN 1418).
Prüfung von Schweißern - Schmelzschweißen - Teil 1: Stähle
Diese Europäische Norm definiert die Schweißerprüfung für das Schmelzschweißen von Stählen.
Sie stellt eine Reihe technischer Regeln für systematische Prüfungen von Schweißern auf und ermöglicht so, dass solche Qualifizierungen unabhängig von der Art des Erzeugnisses, des Ortes und des Prüfers/der Prüfstelle einheitlich akzeptiert werden.
Wenn Schweißer qualifiziert werden, liegt der Schwerpunkt auf der Fähigkeit des Schweißers, den Elektroden-halter/die Schweißpistole/den Schweißbrenner so zu handhaben, dass damit eine Schweißung von zulässiger Qualität erzeugt wird.
Die Schweißprozesse nach dieser Norm schließen nur solche Schweißprozesse ein, die als Handschweißen oder teilmechanisches Schweißen bezeichnet werden. Sie schließen nicht die vollmechanischen und automatischen Schweißprozesse ein (siehe EN 1418).
Epreuve de qualification des soudeurs - Soudage par fusion - Partie 1 : Aciers
La présente Norme européenne définit l'épreuve de qualification des soudeurs pour le soudage par fusion des aciers.
Elle fournit un ensemble de regles techniques pour l'épreuve de qualification systématique des soudeurs, et permet a de telles qualifications d'etre acceptées uniformément, indépendamment du type de produit, du lieu et de l'examinateur ou de l'organisme d'examen.
Lors de la qualification des soudeurs, l'accent est porté sur l'aptitude du soudeur a guider manuellement l'électrode, la torche ou le chalumeau de soudage pour produire une soudure de qualité acceptable.
Les procédés de soudage concernés par la présente Norme européenne sont les procédés de soudage par fusion désignés en tant que, manuels ou semi-automatiques. Elle ne traite pas des procédés de soudage totalement mécanisés et automatisés (voir l'EN 1418).
Preskušanje varilcev - Talilno varjenje - 1. del: Jekla
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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Qualification test of welders - Fusion welding - Part 1: SteelsPreskušanje varilcev - Talilno varjenje - 1. del: JeklaEpreuve de qualification des soudeurs - Soudage par fusion - Partie 1 : AciersPrüfung von Schweißern - Schmelzschweißen - Teil 1: StähleTa slovenski standard je istoveten z:EN 287-1:2004SIST EN 287-1:2004en25.160.10Varilni postopki in varjenjeWelding processesICS:SLOVENSKI
STANDARDSIST EN 287-1:200401-junij-2004
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 287-1March 2004ICS 25.160.10Supersedes EN 287-1:1992English versionQualification test of welders - Fusion welding - Part 1: SteelsEpreuve de qualification des soudeurs - Soudage parfusion - Partie 1 : AciersPrüfung von Schweißern - Schmelzschweißen - Teil 1:StahlThis European Standard was approved by CEN on 2 January 2004.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 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 responsibility 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, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2004 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 287-1:2004: E
EN 287-1:2004 (E)2ContentspageForeword.3Introduction.41Scope.52Normative references.53Terms and definitions.54Symbols and abbreviated terms.64.1General.64.2Reference numbers of welding processes.64.3Abbreviations.75Essential variables and range of qualification.85.1General.85.2Welding processes.85.3Product type.95.4Type of weld.95.5Material groups.105.6Welding consumables.105.7Dimensions.111.8Welding positions.121.9Weld details.136Examination and testing.146.1Supervision.146.2Shapes, dimensions and numbers of test pieces.146.3Welding conditions.186.4Test methods.196.5Test piece and test specimen.191.6Test record.247Acceptance requirements for test pieces.248Re-tests.259Period of validity.259.1Initial qualification.259.2Confirmation of the validity.259.3Prolongation of qualification.2510Certificate.2511Designation.26Annex A (informative)
Welder's qualification test certificate.27Annex B (informative)
Designation examples.28Annex C (informative)
Job knowledge.32Annex D (informative)
Variables to be confirmed and traceable for prolongation.36Annex ZA (informative)
Clauses of this European Standard addressing essential requirements or otherprovisions of EU Directives.37Bibliography.38
EN 287-1:2004 (E)3ForewordThis document (EN 287-1:2004) has been prepared by Technical Committee CEN /TC 121, "Welding", thesecretariat of which is held by DIN.This European Standard shall be given the status of a national standard, either by publication of an identical text orby endorsement, at the latest by September 2004, and conflicting national standards shall be withdrawn at thelatest by September 2004.This document has been prepared under a mandate given to CEN by the European Commission and the EuropeanFree Trade Association, and supports essential requirements of EU Directive(s).For relationship with EU Directive(s), see informative annex ZA, which is an integral part of this document.This document supersedes EN 287-1:1992.EN 287 consists of the following parts, under the general title Qualification test of welders — Fusion welding:¾ Part 1: Steels¾ Part 2: Aluminium and aluminium alloysAnnexes A, B, C and D are informative.This document includes a Bibliography.According to the CEN/CENELEC Internal Regulations, the national standards organizations of the followingcountries 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, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EN 287-1:2004 (E)4IntroductionThe ability of a welder to follow verbal or written instructions and verification of a person's skills are importantfactors in ensuring the quality of the welded product.The testing of a welder's skill in accordance with this standard depends on welding techniques and conditions usedin which uniform rules are complied with, and standard test pieces are used.The principle of this standard is that a qualification test qualifies the welder not only for the conditions used in thetest, but also for all joints which are considered easier to weld on the presumption that the welder has received aspecific training and/or has industrial practice within the range of qualification.The qualification test can be used to qualify a welding procedure and a welder provided that all the relevantrequirements, e.g. test piece dimensions, are satisfied.Qualifications in accordance with EN 287-1 existing at the date of publication of this standard should, at the end oftheir period of validity, be interpreted in accordance with the requirements of this standard.
EN 287-1:2004 (E)51 ScopeThis European Standard defines the qualification test of welders for the fusion welding of steels.It provides a set of technical rules for a systematic qualification test of the welder, and enables such qualificationsto be uniformly accepted independently of the type of product, location and examiner/examining body.When qualifying welders, the emphasis is placed on the welders ability to manually manipulate the electrode/welding torch/ welding blowpipe and thereby producing a weld of acceptable quality.The welding processes referred to in this European Standard include those fusion welding processes which aredesignated as manual or partly mechanized welding. It does not cover fully mechanized and automated weldingprocesses (see EN 1418).2 Normative referencesThis European Standard incorporates by dated or undated reference, provisions from other publications. Thesenormative references are cited at the appropriate places in the text, and the publications are listed hereafter. Fordated references, subsequent amendments to or revisions of any of these publications apply to this EuropeanStandard only when incorporated in it by amendment or revision. For undated references the latest edition of thepublication referred to applies (including amendments).EN 910, Destructive tests on welds in metallic materials — Bend tests.EN 970, Non-destructive examination of fusion welds — Visual examination.EN 1320, Destructive tests on welds in metallic materials — Fracture test.EN 1435, Non-destructive examination of welds — Radiographic examination of welded joints.EN ISO 4063, Welding and allied processes — Nomenclature of processes and reference numbers(ISO 4063:1998).EN ISO 5817, Welding — Fusion-welded joints in steel, nickel, titanium and their alloys (beam welding excluded) —Quality levels for imperfections (ISO 5817:2003).EN ISO 6947, Welds — Working positions — Definitions of angles of slope and rotation (ISO 6947:1993).EN ISO 15607:2003, Specification and qualification of welding procedures for metallic materials — General rules(ISO 15607:2003).CR ISO 15608, Welding — Guidelines for a metallic material grouping system (ISO/TR 15608:2000).prEN ISO 15609-1:2000, Specification and approval of welding procedures for metallic materials — Weldingprocedure specification — Part 1: Arc welding (ISO/DIS 15609-1:2000).EN ISO 15609-2:2001, Specification and qualification of welding procedures for metallic materials — Weldingprocedure specification — Part 2: Gas welding (ISO 15609-2:2001).ISO 857-1, Welding and allied processes — Vocabulary — Part 1: Metal welding processes.3 Terms and definitionsFor the purposes of this European Standard, the terms and definitions given in EN ISO 15607:2003 and thefollowing apply.
EN 287-1:2004 (E)63.1welderperson who holds and manipulates the electrode holder, welding torch or blowpipe by hand3.2examinerperson who has been appointed to verify compliance with the applicable standardNOTEIn certain cases, an external independent examiner can be required.3.3examining bodyorganization that has been appointed to verify compliance with the applicable standardNOTEIn certain cases, an external independent examining body can be required.3.4backingmaterial placed at the reverse side of a joint preparation for the purpose of supporting molten weld metal3.5root runin multi layer welding, the run(s) of the first layer deposited in the root3.6filling runin multi layer welding, the run(s) deposited after the root run(s) and before the capping run(s)3.7capping runin multi layer welding, the run(s) visible on the weld face(s) after completion of welding3.8weld metal thicknessthickness of the weld metal excluding any reinforcement4 Symbols and abbreviated terms4.1 GeneralWhere the full wording is not used, the following abbreviations and reference numbers shall be used whencompleting the welder's qualification test certificate (see annex A).4.2 Reference numbers of welding processesThis standard covers the following manual or partly mechanized welding processes (reference numbers of weldingprocesses for symbolic representation are listed in EN ISO 4063):111manual metal arc welding;114self-shielded tubular-cored arc welding;121submerged arc welding with one wire electrode;125submerged arc welding with tubular cored electrode;131metal inert gas welding (MIG welding);135metal active gas welding (MAG welding);136tubular cored metal arc welding with active gas shield;141tungsten inert gas arc welding (TIG welding);15plasma arc welding;311oxy-acetylene welding.NOTEThe principles of this standard can be applied to other fusion welding processes.
EN 287-1:2004 (E)74.3 Abbreviations4.3.1 For test piecesadesign throat thicknessBWbutt weldDoutside pipe diameterFWfillet weldl1length of test piecel2half width of test piecelfexamination lengthPplateReHyield strengths1weld metal thickness for welding process 1s2weld metal thickness for welding process 2tmaterial thickness of test piece (plate or wall thickness)t1material thickness of test piece for welding process 1t2material thickness of test piece for welding process 2Tpipe 1)zleg length of fillet weld4.3.2 For consumablesnmno filler metalAacid coveringBbasic covering or electrode core - basicCcellulosic coveringMelectrode core - metal powderPelectrode core - rutile, fast freezing slagRrutile covering or electrode core – rutile, slow freezing slagRArutile-acid coveringRBrutile-basic coveringRCrutile-cellulosic coveringRRrutile-thick coveringSsolid wire/rodVelectrode core - rutile or basic / fluorideWelectrode core - basic / fluoride, slow freezing slagYelectrode core - basic / fluoride, fast freezing slagZelectrode core - other types4.3.3 For other weld detailsbswelding from both sideslwleftward weldingmbwelding with backingmlmulti layernbwelding without backingrwrightward weldingslsingle layersssingle-side welding4.3.4 For bend testsAminimum tensile elongation required by the material specificationddiameter of the former or the inner roller
1)The word "pipe" alone or in combination, is used to mean "pipe", "tube" or "hollow section".
EN 287-1:2004 (E)8tsthickness of the bend test specimen5 Essential variables and range of qualification5.1 GeneralThe qualification of welders is based on essential variables. For each essential variable a range of qualification isdefined. All test pieces shall be welded using the essential variables independently, except for 5.7 and 5.8. If thewelder has to weld outside the range of qualification a new qualification test is required. The essential variablesare:¾ welding process,¾ product type (plate and pipe),¾ type of weld (butt and fillet),¾ material group,¾ welding consumable,¾ dimension (material thickness and outside pipe diameter),¾ welding position,¾ weld detail (backing, single side welding, both side welding, single layer, multi layer, leftward welding,rightward welding).5.2 Welding processesWelding processes are defined in ISO 857-1 and listed in 4.2.Each qualification test normally qualifies only one welding process. A change of welding process requires a newqualification test. Exceptions are the changes of solid wire S (welding process 135) to metal core wire M (weldingprocess 136) or vice versa which do not require a new qualification test (see Table 3). However, it is permitted for awelder to be qualified for two or more welding processes by welding a single test piece (multi process joint) or bytwo or more separate qualification tests. The ranges of qualification for each welding process used and for the multiprocess joint for butt welds are given in Table 1 (see also Table 4).Table 1 — Thickness range for single and multi process joints for butt weldsThickness rangeWelding process used for the test pieceSingle process jointMulti process jointKey1Welding process 1 (nb)2Welding process 2 (mb)according to Table 4for welding process 1:t = s1for welding process 2:t = s2according to Table 4with t = s1 + s2
EN 287-1:2004 (E)9Thickness rangeWelding process used for the test pieceSingle process jointMulti process jointKey2Welding process 23Welding with backing (mb)4Welding without backing (nb)Key1Welding process 1according to Table 4for welding process 1:t =
t1for welding process 2:t = t2according to Table 4t = t1 + t2welding process 1only for welding ofthe root area5.3 Product typeThe qualification test shall be carried out on plate or pipe. The following criteria are applicable:a) welds in pipes, outside pipe diameter D > 25 mm, cover welds in plates;b) welds in plates cover welds in pipe:¾ of outside pipe diameter D ³ 150 mm, for welding positions PA, PB and PC;¾ of outside pipe diameter D ³ 500 mm, for all welding positions.5.4 Type of weldThe qualification test shall be carried out as butt or fillet weld. The following criteria are applicable:a) butt welds cover butt welds in any type of joint except branch connections (see also 5.4 c));b) in cases where the majority of work is fillet welding, the welder shall also be qualified by an appropriate filletwelding test; in cases where the majority of work is butt welding, butt welds qualify fillet welds;c) butt welds in pipes without backing qualify branch connections with an angle ³ 60° and the same range ofqualification as in Tables 1 to 8. For a branch weld the range of qualification is based on the outside pipediameter of the branch;d) for applications where the type of weld cannot be qualified by means of either a butt or fillet weld test then aspecific test piece should be used to qualify the welder, e.g. branch connection.
EN 287-1:2004 (E)105.5 Material groups5.5.1 Steel groups of parent materialIn order to reduce the number of qualification tests, materials with similar welding characteristics are groupedaccording to CR ISO 15608.5.5.2 Range of qualificationThe welding of any one metal in a material group confers qualification on the welder for the welding of all othermetal within the same material group as well as other material groups according to Table 2.When welding parent materials outside the grouping system, a separate qualification test is required.Qualification of dissimilar metal joints: When using filler metals from material group 8 or 10 (see Table 2), allcombinations with material group 8 or 10 to other material groups are covered.A qualification test made on wrought material groups gives qualification for cast material and a mixture of cast andwrought material in the same material group.Table 2 — Range of qualification for parent metalRange of qualification1.3234567891011Materialgroup a
ofthe test piece1.11.21.49.19.2 + 9.31.1, 1.2, 1.4X––––––––––––1.3XXXX–––––X––X2XXXX–––––X––X3XXXX–––––X––X4XXXXXXXX–X––X5XXXXXXXX–X––X6XXXXXXXX–X––X7XXXXXXXX–X––X8––––––––X–XX–9.1XXXX–––––X––X99.2 + 9.3X–––––––––X––10––––––––X–XX–11XX––––––––––XaMaterial group according to CR ISO 15608.KeyXindicates those material groups for which the welder is qualified.–indicates those material groups for which the welder is not qualified.5.6 Welding consumablesQualification with filler metal, e.g. with welding processes 141, 15 and 311, qualifies for welding without filler metalbut not vice versa.The ranges of qualification for welding consumables are given in Table 3.
EN 287-1:2004 (E)11Table 3 — Range of qualification for welding consumables aRange of qualificationWeldingprocessWelding consumablesused in the test bA, RA, RB, RC, RR, RBCA, RA, RB, RC, RR, RX––BXX–111C––X––solid wire (S)electrode core (M)electrode core (B)electrode core –(R, P, V, W, Y, Z)solid wire (S)XX––131135136141electrode core (M)XX––136electrode core (B)––XX114136electrode core –(R, P, V, W, Y, Z)–––XaAbbreviations see 4.3.2.bThe type of welding consumables used in the qualification test of welders for root run welding without backing (ss nb) is the type of weldingconsumables qualified for root run welding in production.KeyXindicates those welding consumables for which the welder is qualified.–indicates those welding consumables for which the welder is not qualified.5.7 DimensionsThe welder qualification test of butt welds is based on the material thickness and outside pipe diameters. Theranges of qualification are specified in Tables 4 and 5.NOTEIt is not intended that material thickness or outside pipe diameters should be measured precisely but rather thegeneral philosophy behind the values given in Tables 4 and 5 should be applied.For fillet welds the range of qualification for material thickness is specified in Table 6.In the case of branch welding the material thickness criteria to which Table 4 applies and the outside pipe diametercriteria to which Table 5 applies is as follows:¾ Set on: The material thickness and outside pipe diameter of the branch;¾ Set in or set through: The material thickness of the main pipe or shell and the outside pipe diameter of thebranch.For test pieces of different outside pipe diameters and material thicknesses, the welder is qualified for:1) the thinnest and thickest material thickness qualified in accordance with Table 4;2) the smallest and largest outside pipe diameter qualified in accordance with Table 5.
EN 287-1:2004 (E)12Table 4 — Range of qualification of material thickness and weld metal thickness (multi process) of testpiece for butt weldsDimension in millimetresThicknessa tRange of qualificationt < 3t to 2 ´ t b3 £ t £ 123 to 2 ´ t ct > 12³ 5aFor multi processes, s1 and s2 of Table 1 apply.bFor oxy-acetylene welding (311): t to 1,5
´ tcFor oxy-acetylene welding (311): 3 mm to 1,5
´ tTable 5 — Range of qualification for outside pipe diameter aDimension in millimetresOutside pipe diameter of test pieceDRange of qualificationD £ 25D to 2 ´ DD > 25³ 0,5 ´ D (25 mm min.)aFor structural hollow sections, D is the dimension of the smaller side.Table 6 — Range of qualification of material thickness of test piece for fillet weldsaDimension in millimetresMaterial thickness of test piecetRange of qualificationt < 3t to 3t
3³ 3aSee also Table 9.5.8 Welding positionsThe range of qualification for each welding position is given in Table 7. The welding positions and symbols refer toEN ISO 6947.The test pieces shall be welded in accordance with the nominal angles of the welding positions according toEN ISO 6947.The welding positions J-L045 and H-L045 for pipes qualify for all pipe angles.Welding two pipes with the same outside pipe diameter, one in welding position PF and one in welding position PC,also covers the range of qualification of a pipe welded in welding position H-L045.Welding two pipes with the same outside pipe diameter, one in welding position PG and one in welding positionPC, also covers the range of qualification of a pipe welded in welding position J-L045.Outside pipe diameters D ³ 150 mm can be welded in two welding positions (PF or PG 2/3 of circumference, PC1/3 of circumference) using only one test piece.
EN 287-1:2004 (E)13Table 7 — Range of qualification for welding positionsRange of qualification a
Weldingpositionof testpiecePAPB b
PCPD bPEPF(Plate)PF(Pipe)PG(Plate)PG(Pipe)H-L045J-L045PAXX–––––––––PB bXX–––––––––PCXXX––––––––PD bXXXXXX–––––PEXXXXXX–––––PF(Plate)XX–––X–––––PF(Pipe)XX–XXXX––––PG(Plate)–––––––X–––PG(Pipe)XX–XX––XX––H-L045XXXXXXX––X–J-L045XXXXX––XX–XaAdditionally the requirements of 5.3 and 5.4 shall be observed.bWelding position PB and PD are only used for fillet welds (see 5.4 b)) and can only qualify fillet welds in other welding positions.KeyXindicates those welding positions for which the welder is qualified.–indicates those welding positions for which the welder is not qualified.5.9 Weld detailsDepending on the weld details, the ranges of qualification are shown in Tables 8 and 9.When welding with process 311 a change from rightward welding to leftward welding and vice versa requires a newqualification test.Table 8 — Range of qualification for weld details on butt weldsRange of qualificationWeld details of test piecesingle-side welding /welding without backing(ss nb)single-side welding /welding with backing(ss mb)welding from both sides(bs)single-side welding /welding withoutbacking (ss nb)XXXsingle-side welding /welding withbacking (ss mb)–XXwelding from both sides (bs)–XXKeyXindicates those welds for which the welder is qualified.–indicates those welds for which the welder is not qualified.
EN 287-1:2004 (E)14Table 9 — Range of qualification of layer technique for fillet weldsTest piece aRange of qualificationsingle layer (sl)multi layer (ml)single layer (sl)X–multi layer (ml)XXaThroat thickness shall be in the range of 0,5 ´ t £ a £ 0,7 ´ t.KeyXindicates the layer technique for which the welder is qualified.–indicates the layer technique for which the welder is not qualified.6 Examination and testing6.1 SupervisionThe welding of test pieces shall be witnessed by the examiner or examining body. The testing shall be verified bythe examiner or examining body.The test pieces shall be marked with the identification of the examiner and the welder before welding starts.Additionally welding positions for all test pieces are to be marked on the test piece and for fixed pipe welds, the12 o’clock welding position shall also be marked.The examiner or examining body may stop the test if the welding conditions are not correct or if it appears that thewelder does not have the skill to fulfil the requirements, e.g. where there are excessive and/or systematic repairs.6.2 Shapes, dimensions and numbers of test piecesThe shape and dimension of test pieces (see 5.7) required are shown in Figures 1 to 4.For pipes a minimum examination length of 150 mm is required. However, if the circumference of pipes is less than150 mm additional test pieces will be required with a maximum of three test pieces.
EN 287-1:2004 (E)15Dimensions in millimetresKeytMaterial thickness of test pieceFigure 1 — Dimensions of test piece for a butt weld in plate
EN 287-1:2004 (E)16Dimensions in millimetres0,5 ´ t £ a £ 0,7 ´ tKeyaDesign throat thicknesstMaterial thickness of test piecezLeg length of fillet weldFigure 2 — Dimensions of test piece for a fillet weld on plate
EN 287-1:2004 (E)17Dimensions in millimetresKeyDOutside pipe diametertMaterial thickness of test piece (wall thickness)Figure 3 — Dimensions of test piece for a butt weld in pipe
EN 287-1:2004 (E)18Dimensions in millimetrest corresponds to the thinner part0,5 ´ t £ a £ 0,7 ´ tKeyaDesign throat thicknessDOutside pipe diameterl1Length of test piecetMaterial thickness of test piece (plate or wall thickness)zLeg length of fillet weldFigure 4 — Dimensions of test piece for a fillet weld on pipe6.3 Welding conditionsThe qualification test of welders shall follow a pWPS or WPS prepared in accordance with prEN ISO 15609-1 orEN ISO 15609-2.The following welding conditions shall apply:¾ the welding time for the test piece shall correspond to the working time under usual production conditions;¾ the test pieces shall have at least one stop an
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