SIST EN 13067:2014
(Main)Plastics welding personnel - Qualification testing of welders - Thermoplastics welded assemblies
Plastics welding personnel - Qualification testing of welders - Thermoplastics welded assemblies
This European 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 work. The application of this standard guarantees that the examination is carried out according to a uniform test procedure. This European Standard applies when the contractor or the authorities responsible for the application require it. Gas and water utility network industries with alternative qualification programmes are excluded from this standard. This European 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; - solvent welding: socket. This European Standard applies to the welding of the following products: - sheet; - pipe; - fittings; - lining membrane. This European Standard covers the welding of the following groups of materials: a) for sheets, pipes and fittings: 1) group 1: PVC (including all kinds of PVC-U, PVC-C), ABS; 2) group 2: PP (including all kinds of PP); 3) group 3: PE (including all kinds of PE); 4) group 4: PVDF; 5) group 5: ECTFE or PFA or FEP; b) for lining membranes: 1) group 6: PVC-P; 2) group 7: PE (including all kinds of PE); 3) group 8: ECB; 4) group 9: PP.
Kunststoffschweißpersonal - Anerkennungsprüfung von Schweißern - Thermoplastische Schweißverbindungen
Diese Norm legt Verfahren für die Prüfung der Kenntnisse und Fertigkeiten eines Schweißers fest, der Schweißarbeiten an Thermoplasten bei Neuanfertigungen und Reparaturarbeiten durchzuführen hat.
Die Prüfung der Fertigkeiten eines Schweißers ist eine notwendige Bedingung für die Sicherung der Qualität bei Schweißarbeiten.
Die Anwendung dieser Norm stellt sicher, dass die Prüfung nach einem einheitlichen Prüfverfahren durchgeführt wird.
Diese Norm findet Anwendung, wenn der Auftragnehmer oder die für das Anwendungsgebiet verantwortliche Behörde dies fordert.
Gas und Wasserversorgungsunternehmen, die alternative Anerkennungsprogramme haben, sind von dieser Norm ausgeschlossen.
Diese Norm gilt für folgende Schweißverfahren:
Warmgasschweißen: Runddüse, Schnellschweißdüse, Keil;
Extrusionsschweißen;
Heizelementschweißen: Stumpfstoß, Sattel, Muffe, Keil;
Heizwendelschweißen: Muffe, Sattel;
Quellschweißen: Muffe.
Diese Norm gilt für das Schweißen folgender Produkte:
Tafel;
Rohr;
Formstücke;
Dichtungsbahnen.
Diese Norm gilt für das Schweißen der folgenden Werkstoffgruppen:
für Tafeln, Rohre und Formstücke:
Gruppe 1: PVC (einschließlich aller Typen von PVC U, PVC C und ABS)
Gruppe 2: PP (einschließlich aller Typen von PP)
Gruppe 3: PE (einschließlich aller Typen von PE, PB)
Gruppe 4: PVDF
Gruppe 5: ECTFE oder PFA oder FEP
für Dichtungsbahnen:
Gruppe 6: PVC P
Gruppe 7: PE (einschließlich aller Typen von PE)
Gruppe 8: ECB
Gruppe 9: PP
Personnel en soudage des plastiques - Épreuve de qualification des soudeurs - Assemblages soudés thermoplastiques
La présente norme spécifie la méthode à utiliser pour évaluer les connaissances et l'habileté d'un soudeur à qui il est demandé de réaliser des soudures sur des matières thermoplastiques pour des constructions neuves et des travaux de réparation.
L'examen de l'habileté d'un soudeur est une condition essentielle de l'assurance de la qualité du soudage.
L'application de la présente norme garantit que l'examen se déroule selon une procédure d'épreuve uniforme.
La présente norme s'applique lorsque le contractant ou les autorités responsables de l'application l'exigent.
Les sociétés de distribution publique de gaz et d'eau qui disposent de programmes de qualification différents ne sont pas concernées par la présente norme.
La présente norme s'applique aux procédés de soudage suivants :
soudage au gaz chaud : buse ronde, buse rapide, coin chauffant ;
soudage par extrusion ;
soudage par élément chauffant : bout à bout, selle de raccordement, emboîture, coin chauffant ;
soudage par électrofusion : emboîture, selle de raccordement ;
soudage par solvant : emboîture.
La présente norme s'applique au soudage des produits suivants :
plaques ;
tubes ;
raccords ;
membranes de revêtement.
La présente norme couvre le soudage des groupes de matériaux suivants :
pour les plaques, tubes et raccords :
groupe 1 : PVC (incluant tous les types de PVC-U, PVC-C, ABS) ;
groupe 2 : PP (incluant tous les types de PP) ;
groupe 3 : PE (incluant tous les types de PE, PB) ;
groupe 4 : PVDF ;
groupe 5 : ECTFE, PFA ou FEP ;
pour les membranes de revêtement :
groupe 6 : PVC-P ;
groupe 7 : PE (incluant tous les types de PE) ;
groupe 8 : ECB ;
groupe 9 : PP.
Osebje za varjenje polimerov - Preskušanje usposobljenosti varilcev - Varjenje plastomerov
Ta evropski standard določa metodo preskušanja znanja in veščin varilcev za varjenje plastomerov v novih konstrukcijah in v okviru popravil. Preskus veščin varilcev je osnovni pogoj za zagotavljanje kakovosti varjenja. Uporaba tega standarda zagotavlja, da je preskus izveden v skladu z enotnim preskusnim postopkom. Ta evropski standard se uporablja, kadar ga potrebujejo izvajalec ali organi, odgovorni za njegovo uporabo. Panoge oskrbe s plinom in vodo, ki imajo alternativne programe usposabljanj, niso zajete v tem standardu. Ta evropski standard se uporablja za naslednje postopke varjenja: – varjenje z vročim zrakom: okrogla šoba, šoba za varjenje z visoko hitrostjo, klini; – ekstrudersko varjenje; – varjenje z vročimi ploščami: soležni zvari, sedla, obojni zvari, klini; – elektrofuzijsko varjenje: obojni zvari, sedla; – varjenje s topilom: obojni zvari. Ta evropski standard se uporablja za varjenje naslednjih izdelkov: – plošče; – cevi; – spojniki; – obložne membrane. Ta evropski standard zajema varjenje naslednjih skupin materialov: a) za plošče, cevi in spojnike: 1) skupina 1: PVC (vključuje vse vrste PVC-U, PVC-C), ABS; 2) skupina 2: PP (vključuje vse vrste PP); 3) skupina 3: PE (vključuje vse vrste PE); 4) skupina 4: PVDF; 5) skupina 5: ECTFE ali PFA ali FEP; b) za obložne membrane: 1) skupina 6: PVC-P; 2) skupina 7: PE (vključuje vse vrste PE); 3) skupina 8: ECB; 4) skupina 9: PP.
General Information
Relations
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Osebje za varjenje polimerov - Preskušanje usposobljenosti varilcev - Varjenje plastomerovKunststoffschweißpersonal - Anerkennungsprüfung von Schweißern - Thermoplastische SchweißverbindungenPersonnel en soudage des plastiques - Épreuve de qualification des soudeurs - Assemblages soudés thermoplastiquesPlastics welding personnel - Qualification testing of welders - Thermoplastics welded assemblies83.080.20PlastomeriThermoplastic materials25.160.01Varjenje, trdo in mehko spajkanje na splošnoWelding, brazing and soldering in general03.100.30Vodenje ljudiManagement of human resourcesICS:Ta slovenski standard je istoveten z:EN 13067:2012SIST EN 13067:2014en,fr,de01-maj-2014SIST EN 13067:2014SLOVENSKI
STANDARDSIST EN 13067:20031DGRPHãþD
SIST EN 13067:2014
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 13067
November 2012 ICS 03.100.30; 25.160.10 Supersedes EN 13067:2003English Version
Plastics welding personnel - Qualification testing of welders - Thermoplastics welded assemblies
Personnel en soudage des plastiques - Épreuve de qualification des soudeurs - Assemblages soudés thermoplastiques
Kunststoffschweißpersonal - Anerkennungsprüfung von Schweißern - Thermoplastische Schweißverbindungen This European Standard was approved by CEN on 22 September 2012.
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 CEN-CENELEC 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 CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 13067:2012: ESIST EN 13067:2014
EN 13067:2012 (E) 2 Contents Page Foreword . 3Introduction . 41Scope . 52Normative references . 63Terms and definitions . 64Admission to the qualification tests . 85Testing of skill and knowledge . 96Duty of Plastics Welding Examiner and invigilator. 167Range of qualification . 168Welding of test piece . 169Test piece and test specimens, shapes and dimensions . 1610Evaluation and acceptance criteria of test piece(s) and test specimens . 2411Test result and qualification test certificate . 2812Failed test . 2913Period of validity . 2914Qualification test certificate renewal . 30Annex A (informative)
Welding recording sheet . 31Annex B (informative)
Welders qualification tests certificate format . 32Annex C (informative)
PWE evaluation sheet for practical test . 33Bibliography . 42 SIST EN 13067:2014
EN 13067:2012 (E) 3 Foreword This document (EN 13067:2012) has been prepared by Technical Committee CEN/TC 249 “Plastics”, the secretariat of which is held by NBN. 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 May 2013, and conflicting national standards shall be withdrawn at the latest by May 2013. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 13067:2003. In this revision, the scope of this standards includes solvent welding: socket and covers the welding of the polypropylene (PP) lining membranes (group 9: PP). According to the CEN/CENELEC Internal Regulations, the national standards organisations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. SIST EN 13067:2014
EN 13067:2012 (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 follow 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 application.
SIST EN 13067:2014
EN 13067:2012 (E) 5 1 Scope This European 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 work. The application of this standard guarantees that the examination is carried out according to a uniform test procedure. This European Standard applies when the contractor or the authorities responsible for the application require it.
Gas and water utility network industries with alternative qualification programmes are excluded from this standard. This European 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; solvent welding: socket. This European Standard applies to the welding of the following products: sheet; pipe; fittings; lining membrane. This European Standard covers the welding of the following groups of materials: a) for sheets, pipes and fittings: 1) group 1: PVC (including all kinds of PVC-U, PVC-C), ABS; 2) group 2: PP (including all kinds of PP); 3) group 3: PE (including all kinds of PE); 4) group 4: PVDF; 5) group 5: ECTFE or PFA or FEP; b) for lining membranes: 1) group 6: PVC-P; SIST EN 13067:2014
EN 13067:2012 (E) 6 2) group 7: PE (including all kinds of PE); 3) group 8: ECB; 4) group 9: PP. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 12814-1, Testing of welded joints of thermoplastics semi-finished products Part 1: Bend test EN 12814-2:2000, Testing of 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 destructive testing of welded joints of thermoplastics semi-finished products Part 1: Visual examination EN 14728, Imperfections in thermoplastic welds Classification EN ISO/IEC 17024:2003, Conformity assessment General requirements for bodies operating certification of persons (ISO/IEC 17024:2003) EN ISO/IEC 17025, General requirements for the competence of testing and calibration laboratories (ISO/IEC 17025) 3 Terms and definitions For the purposes of this document, the terms and definitions from EN ISO/IEC 17024:2003 and the following apply. 3.1 AD-WLD break failure mode in an extrusion welded membrane peel test specimen where the failure is through the weld material 3.2 certificate issuing authority establishment responsible for approving the PWE and or the Invigilator 3.3 invigilator qualified person approved by Certificate Issuing Authority (CIA) who can supervise the practical and theoretical tests
Note 1 to entry: 3.3 and 3.5 can be the same person. 3.4 manufacturer company, contractor or organisation who is responsible for the welding SIST EN 13067:2014
EN 13067:2012 (E) 7 3.5 Plastics Welding Examiner
PWE qualified person approved by Certificate Issuing Authority (CIA) who verifies the compliance with this standard 3.6 qualification test theoretical and practical tests in order to verify the knowledge and the skill of the welder 3.7 range of qualification welding processes, types of joint, materials, thicknesses and diameters for which a welder is qualified 3.8 test piece assembly which is welded during the practical test 3.9 test specimen part or portion cut from the test piece for the test specified 3.10 test house establishment having all relevant test equipment to carry out the required tests and working in compliance with EN ISO/IEC 17025 3.11 training centre educational establishment for training plastics welding personnel and/or Plastics Welding Examiner, approved by CIA 3.12 welding process technique characterized by the method of softening to obtain permanent assembly 3.12.1 electrofusion welding softening of fitting and pipe surfaces to be welded is obtained by means of a heating element embedded in the fitting which remain between welded joints 3.12.2 extrusion welding welding process in which an extruder unit with a melting chamber gives the extruded material required by the thickness and shape of the joint. Hot air or inert gas heats simultaneously the parent material 3.12.3 heated tool welding welding process in which the joint surfaces are adequately heated by exposure, through direct contact with heated elements and are welded under pressure, which includes butt fusion welding (also called hot plate welding, platen welding or mirror welding) and socket fusion welding 3.12.4 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 gas 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 SIST EN 13067:2014
EN 13067:2012 (E) 8 3.12.5 high-speed nozzle welding process in which the welding rod is suitably guided and pre-heated and the nozzle tip is provided with a profiled area to apply the welding pressure 3.12.6 hot gas welding welding process in which the materials to be unified are softened by hot air or inert gas and are pressed together 3.12.7 round nozzle welding process in which the pressure is applied via the welding rod or a suitable attachment such as a pressure roller 3.12.8
solvent welding softening of fitting and pipe surfaces, by means of a solvent contained in the cement Note 1 to entry: After suitable cure time, the solvent dries leaving the parent material in the interface between welded joints. 3.13 welding Procedure Specification
WPS document providing in detail the required variables for a specific application to assure repeatability 3.14 welding record sheet document recording
in detail the variables used during the practical test 3.15 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 operation by means of mechanical or automatic equipment 4 Admission to the qualification tests Only welders whose training and/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 confirmed by manufacturer’s declaration; completion of both a technical and practical training course in preparation for the plastic welders qualification test. An example of a suitable training course is defined in Entry [1] in the Bibliography or may be identified in national standards. SIST EN 13067:2014
EN 13067:2012 (E) 9 5 Testing of skill and knowledge 5.1 General During the qualification test, the welder shall demonstrate his practical skill according to 5.2 and his theoretical knowledge according to 5.3. 5.2 Practical test This test is carried out under the supervision of the PWE or Invigilator. 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 equipment, materials and documents necessary to complete the test piece shall be available to the welder. All welding shall be performed in a horizontal position. The time taken by the welder to complete the test piece shall correspond to that taken under production conditions. 5.3 Theoretical test This test is carried out under the supervision of the PWE or Invigilator. The welder's knowledge of the practical working rules for skilful and safe working shall be evaluated in the theoretical test. The welder shall answer a minimum of 20 multiple-choice questions relevant to the qualification testing.
Completion of the theoretical test shall not exceed one hour, be continuous without access to teaching aids. The questions shall cover the following subjects, as appropriate: 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 control of the welding equipment; welding processes; knowledge concerning on-site welding; correct preparation of the work pieces for welding; knowledge concerning the characteristics of thermoplastics within the sub-groups; knowledge concerning the characteristics of solvents / cements within the relevant sub-group; preventing and correcting faults when making welds; knowledge concerning the types of imperfections for the applied welding process(es); knowledge concerning the WPS and welding record sheet; SIST EN 13067:2014
EN 13067:2012 (E) 10 awareness of the consequences of misapplying welding parameters and/or procedures; knowledge concerning non-destructive examinations and destructive tests necessary for the applied welding process(es); awareness of health and safety requirements for the above work.
SIST EN 13067:2014
EN 13067:2012 (E) 11 Table 1 — Sheets, pipes and fitting details of tests (1 of 3) Dimensions in millimetres
Group of material Sub groupsType of product S = sheet P = pipe en = nominal wall thickness dn = nominal pipe outside diameter SDR=dn/en Welding process Weld formb Examination and testing Type of test a Test pieceaccording to Figure Range of qualification Dimensions Type of joint b
1 PVC 1.1 S en=5 Hot gas round nozzle V V/ B f+r 1 All en V,X,⊥ 1.2 S en=5 Hot gas high speed nozzle V V/ B f+r 1 All en V,X,⊥ 1.3 S en=5 Heated tool ][ V/ B 1 en ≥ 3 ][ 1.4 P dn=40 and dn=110 SDR≤21 Solvent Welding I V/ Vls 4 dn< 160 I 1.5 P dn≥160 SDR≤21 Solvent Welding I V/ Vls 4 dn≥160 I
2 PP 2.1 S en=9 or 10 Hot gas high speed nozzle X V/ B f+r 1 All en V,X,⊥ 2.2 S en=9 or 10 Extrusion continuous V V/ B f+r 1 en ≥ 3 V,X,⊥ 2.3 S en=9 or 10 Heated tool ][ V/ B 1 en ≥ 3 ][ 2.4 P dn=110 SDR≤17,6 Heated tool ][ V/ B
2 en ≥ 3 dn≤ 315 ][ 2.5 P dn≥400 SDR≤17,6 Heated tool ][ V/ B s 2 dn> 315 ][ 2.6 P dn=63 SDR≤17,6 Heated tool c I V/ Pc 4 All dn I 2.7 P dn=63 SDR≤17,6 Electrofusion I V/ Pc 4 All dn I
SIST EN 13067:2014
EN 13067:2012 (E) 12 Table 1 (2 of 3) Dimensions in millimetres Group of material Sub groups Type of product S = sheet P = pipe en = nominal wall thickness dn = nominal pipe outside diameter
SDR=dn/en Welding process
Weld formb
Examination and testing Type of test a
Test pieceaccording to Figure
Range of qualification Dimensions Type of joint b
3 PE 3.1 S en=10 Hot gas high speed nozzle X V/ B f+r 1 All en V,X,⊥ 3.2 S en=10 Extrusion continuous V V/ B f+r 1 en ≥ 3 V,X,⊥ 3.3 S en=10 Heated tool ][ V/ B 1 en ≥ 3 ][ 3.4 P 110≤dn ≤180
SDR≤17,6 Heated tool ][ V/ T 2 dn≤ 315 ][ 3.5 P dn≥400 SDR≤17,6 Heated tool ][ V/ T 2 dn >315 ][ 3.6 P 90≤dn ≤125
SDR≤17,6 Electrofusion I V/ Pc 4 dn ≤ 315 I 3.7 P dn≥355 SDR≤17,6 Electrofusion I V/ Pd 4 dn>315 I 3.8 P dn≤63 on 90≤dn ≤125 SDR≤17,6 Electrofusion .†. V/ Pc 5 All dn .†. 3.9 P dn=63 SDR=11 Heated tool c I V/ Pc 4 All dn I 3.10 P dn=32 on dn=90 SDR=11 Heated tool .†. V/ Pc 5 All dn .†.
SIST EN 13067:2014
EN 13067:2012 (E) 13 Table 1 (3 of 3) Dimensions in millimetres Group of material Sub groups Type of product S = sheet P = pipe en = nominal wall thickness dn = nominal pipe outside diameter
SDR=dn/en Welding process Weld Form b Examination and testing Type of test a
Test pieceaccording to Figure Range of qualification Dimensions Type of jointb 4 PVDF 4.1 S en=4 Hot gas high speed nozzle V V/ B f+r 1 en ≥ 2 V,X,⊥ 4.2 S en=4 Heated tool V V/ B 1 en ≥ 2 ][ 4.3 P dn=110 en=5,3 Heated tool ][ V/ B
2 All dn en ≥ 1,9 ][ 4.4 P dn=63 en=3 Heated tool c I V/ Pc 4 All dn I 5 ECTFE or FEP
or PFA 5.1 S en=2,3 Hot gas high speed nozzle V V/ T 3 en ≥ 1,6 V,X,⊥ 5.2 P dn=110 en=3 Heated tool ][ V/ T 2 All dn All en ][ a
" / " = and;
B = Bend test (f: face ; r: root ; s: side (for thick materials))
Pc = Peel test (crush test) ;
V = Visual examination;
Pd = Peel test (decohesion test);
T = Tensile test;
Vls = Visual examination of longitudinal sections b
V
= V preparation
X
= double V preparation
⊥
= fillet weld
][
= butt weld
.†.
= saddle
I
= socket
c
Welding by machine only
SIST EN 13067:2014
EN 13067:2012 (E) 14 Table 2 — Lining membranes details of tests (1 of 2) Dimensions in millimetres Group of material Sub groups Type of product M=membrane en = nominal wall thickness Welding process Weld form
Examination and testing Type of test a Test pieceaccording to Figure
Range of qualification Dimensions Type of joint 6 PVC-P 6.1 M en=2 Hot gas manual
V/ Pt 6 1≤en≤4 All Lap 6.2 M en=2 Hot gas high by machine
V/ Pt 7 1≤en≤4 All Lap 6.3 M en=2 Heated wedge by hot gas
V/ Pt 7 1≤en≤4 All Lap 6.4 M en=2 Heated wedge electric
V / Pt 7 1≤en≤4 All Lap 7 PE 7.1 M 2≤en ≤2,5 Hot gas manual
V/ Pt 6 1≤en≤5 All Lap 7.2 M 2≤en ≤2,5 Hot gas by machine
V/ Pt 7 1≤en≤5 All Lap 7.3 M 2≤en ≤2,5 Heated wedge by hot gas
V/ Pt 7 1≤en≤5 All Lap 7.4 M 2≤en ≤2,5 Heated wedge electric
V/ Pt 7 1≤en≤5 All Lap 7.5 M 2≤en ≤2,5 Extrusion manual
V/ Pt 8 1≤en≤5 All Lap
SIST EN 13067:2014
EN 13067:2012 (E) 15 Table 2 (2 of 2) Dimensions in millimetres Group of material Sub groups Type of product M=membrane en = nominal wall thickness Welding process Weld form Examination and testing Type of test a Test piece accordingto Figure Range of qualification Dimensions Type of joint
8 ECB 8.1 M en=2 Hot gas manual
V/ Pt 6 1≤en≤4 All Lap 8.2 M en=2 Hot gas high by machine
V/ Pt 7 1≤en≤4 All Lap 8.3 M en=2 Heated wedge by hot gas
V/ Pt 7 1≤en≤4 All Lap 8.4 M en=2 Heated wedge electric
V / Pt 7 1≤en≤4 All Lap
9 PP 9.1 M 1≤en ≤2 Hot gas manual
V/ Pt 6 0,7≤en≤3 All Lap 9.2 M 1≤en ≤2 Hot gas by machine
V/ Pt 7 0,7≤en≤3 All Lap 9.3 M 1≤en ≤2 Heated wedge by hot gas
V/ Pt 7 0,7≤en≤3 All Lap 9.4 M 1≤en ≤2 Heated wedge electric
V/ Pt 7 0,7≤en≤3 All Lap 9.5 M 1≤en ≤2 Extrusion manual
V/ Pt 8 0,7≤en≤3 All Lap a " / " = and; Pt= Peel test (T-peel test) ; V = Visual examination
SIST EN 13067:2014
EN 13067:2012 (E) 16 6 Duty of Plastics Welding Examiner and invigilator The test shall be supervised by a PWE or invigilator and shall be marked and signed by a PWE. The PWE shall be responsible for sending
the test pieces to the qualified test house. The PWE shall not examine any candidate trained by himself. The PWE shall reach his professional decisions independently. The PWE shall check the test house qualification and, where applicable, the training centre. 7 Range of qualification The designation of a plastics welder's test shall be formed according to the group and sub-group and the range of qualification (see Table 1 or Table 2). The range of validity of qualification shall be shown on the certificate. 8 Welding of test piece 8.1 Difficulties and corrections whilst welding the test piece If difficulties arise during the practical test
that are not caused by the welder, a test piece on which welding has been started may be replaced after qualification by the PWE or invigilator. Errors made or occurring during the hot gas or extrusion welding may be repaired only after permission has been given by the PWE or invigilator. 8.2 Inspection requirements Before welding, the PWE or invigilator shall check the identity of candidate, the suitability of the materials, WPS, machines and equipment. The test piece shall be identified with the number or mark of the PWE or
invigilator and the welder. The PWE or invigilator shall supervise the welding of the test piece. The welder shall complete the welding record sheet (see proposal given in Annex A) controlled and witnessed by the PWE or invigilator. The PWE or invigilator shall stop the test if the welding conditions are not in compliance with the WPS or the welder does not have the skill required to obtain a satisfactory result. The PWE shall visually check the test piece after completion by the welder. 8.3 Test piece The test piece shall be as required in Table 1 or Table 2. 9 Test piece and test specimens, shapes and dimensions The dimensions of the test piece and the number of test specimens to be cut from the test piece shall be those specified for the particular test sub-groups (see Figures 1 to 9). SIST EN 13067:2014
EN 13067:2012 (E) 17 The shapes, dimensions and conditioning of the test specimens are specified in the relevant test standards. Cutting the test specimens shall be carried out without significant damage to the welds and their heat affected zones. Tests, other than the initial visual examination, shall be carried out by a qualified test house agreed upon by the parties involved. The test house shall be responsible for cutting the test specimen and carrying out the tests. The standards against which the test house is qualified shall be referenced. Minimum dimensions in millimetres
Key 1
discard 2
6 bend test specimens cut as directed by the PWE Figure 1 — Test piece for a butt weld on sheet (for bend test specimens) SIST EN 13067:2014
EN 13067:2012 (E) 18
Key 1
4 test specimens, 1 in each location (x1, x2, y1, y2) cut as directed by the PWE l ≥ 350 or 2 dn, whichever is longer Figure 2 — Test piece for a butt weld on pipe (for bend or tensile test specimens) SIST EN 13067:2014
EN 13067:2012 (E) 19 Minimum dimensions in millimetres
Key 1
discard 2
5 tensile test specimens cut as directed by the PWE 3 3 tensile test specimens (for reference) cut as directed by the PWE
Figure 3 —Test piece for a butt weld on sheet (for tensile test specimens) SIST EN 13067:2014
EN 13067:2012 (E) 20
Key 1
socket 2
pipe For subgroups 1.5, 3.7, l ≥ dn
For subgroups 1.4, 2.6, 2.7, 3.6, 3.9, 4.4, l ≥ 5 dn Figure 4 — Test piece for a socket weld SIST EN 13067:2014
EN 13067:2012 (E) 21 Minimum dimensions in millimetres
Figure 5 — Test piece for a saddle weld SIST EN 13067:2014
EN 13067:2012 (E) 22 Minimum dimensions in millimetres
Key 1
discard 2
5 peel test specimens cut as directed by the PWE a)
Key 1
welding zone b) Figure 6 — Test piece for lining membranes - Lap seam without testing channel SIST EN 13067:2014
EN 13067:2012 (E) 23 Minimum dimensions in millimetres
Key 1
discard 2
5 peel test specimens cut as directed by the PWE a)
Key 1
welding zone a
the dimensions are dictated by the machine, WPS employed. b)
Figure 7 — Test piece for lining membranes - Lap seam with testing channel SIST EN 13067:2014
EN 13067:2012 (E) 24 Minimum dimensions in millimetres
Key 1
5 test specimens cut as directed by the PWE a)
Key 1
welding zone a
the dimensions are dictated by the WPS employed b) Figure 8 — Test piece for lining membranes - Lap seam extrusion welded 10 Evaluation and acceptance criteria of test piece(s) and test specimens 10.1 General The PWE evaluates the test piece, the test specimens and the results produced by the test house. The evaluation of the test piece and the test specimens is divided into two sections, visual and destructive. Visual examination is described in 10.2. Destructive tests are described in 10.3. The following designation for the test evaluation applies: c: conform; nc: not conform. SIST EN 13067:2014
EN 13067:2012 (E) 25 The results and the evaluation shall be noted on the relevant evaluation record form (see proposal given in the informative Annex C). 10.2 Visual examination Visual evaluation applies to all stages of practical and destructive tests. The visual examination shall be carried out in accordance with EN 13100-1 and any relevant imperfections observed, as defined in EN 14728 (where applicable), shall be recorded. The test piece shall comply with the WPS. 10.3 Destructive tests 10.3.1 General The PWE or invigilator, after confirming that the test pieces conform to the visual examination carried out in accordance with 10.2, shall submit the test pieces to the test house for tests described in Clause 9 and Table 1 or Table 2. The test house shall be operating in compliance with EN ISO/IEC 17025. Results produced (test record) and tested specimens shall be sent by the test house to the PWE for verification. Storage or disposal of the test piece or test specimens shall be as instructed by the PWE. 10.3.2 Bend test The bend test shall be carried out in accordance with EN 12814-1, except for the number of specimens tested and that the test specimen width shall be 20 mm in all cases. Where Table 1 requires "B f+ r" half of the test specimens shall be tested as B f and half as B r. The minimum requirements for each test specimen shall equal or exceed the values given in EN 12814-8. If the criterion for failure used is that a maximum load is reached, then bend angles or ram displacements below the minimum values shall be considered acceptable providing that they are not less than the values achieved by test specimens cut from the parent sheet. Should one test specimen fail to meet the required minimum bending angle, two additional test specimens shall be taken, from the same test piece and re-tested under identical conditions. If the bending angle thus obtained fails to give the required value, the test does not conform. 10.3.3 Peel test The peel test shall be carried out in accordance with EN 12814-4. The peel test method for each material and sub-group given in Tables 1 and 2 are shown in Table 3. SIST EN 13067:2014
EN 13067:2012 (E) 26 Table 3 — Peel test method Group of material Sub-groupPeel test method PP 2.6 crush 2.7 crush PE 3.6 crush 3.7 decohesion 3.8 crush 3.9 crush 3.10 crush PVDF 4.4 crush PVC-P 6.1 to 6.4 T-peel PE 7.1 to 7.5 T-peel ECB 8.1 to 8.4 T-peel PP 9.1 to 9.5 T-peel
For the decohesion test, rupture in the brittle mode shall not exceed 25 % of the axial length of the weld. For the crush test, the fracture in the weld shall not extend beyond the second turn of wire of an electrofusion fitting. For heated tool welds any resulting fracture shall not occur between the pipe and fitting.
For the T-peel test, all failures, exce
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