This document 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 document guarantees that the examination is carried out according to a uniform test procedure. This document 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 document. This document applies to the following welding processes: - hot gas welding: round nozzle, speed, wedge; - extrusion welding; - heated tool welding: butt, saddle, socket, wedge; - electrofusion welding: socket, saddle; - solvent welding: socket. This document applies to the welding of the following products: - sheet; - pipe (unreinforced, solid wall only); - fittings (unreinforced only); - lining membrane. This document covers the welding of the following groups of materials: a) for sheets, pipes and fittings: - group 1: PVC (including all kinds of PVC-U, PVC-C) or ABS; - group 2: PP (including all kinds of PP); - group 3: PE (including all kinds of PE); - group 4: PVDF; - group 5: ECTFE or PFA or FEP; b) for lining membranes and flooring: - group 6: PVC-P; - group 7: PE (including all kinds of PE); - group 8: ECB; - group 9: PP; c) for pipes and fittings only: - group 10: PA-U 11 or PA-U 12.
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CEN/TS 16892:2015 Plastics - Welding of thermoplastics - Specification of welding procedures
EN 12814-1:1999 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
CEN/TS 16892:2015 Plastics - Welding of thermoplastics - Specification of welding procedures
EN 12814-1:1999 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 12814-4:2018 Testing of welded joints of thermoplastics semi-finished products - Part 4: Peel test
EN 12814-8:2001 Testing of welded joints of thermoplastics semi-finished products - Part 8: Requirements
EN 12814-8:2021 Testing of welded joints of thermoplastics semi-finished products - Part 8: Requirements
EN 13100-1:2017 Non destructive testing of welded joints of thermoplastics semi-finished products - Part 1: Visual examination
EN 13100-4:2012 Non destructive testing of welded joints of thermoplastics semifinished products - Part 4: High voltage testing
EN 14728:2019 Imperfections in thermoplastic welds - Classification
EN ISO 6947:2019 Welding and allied processes - Welding positions (ISO 6947:2019)
ISO 13955:1997 Plastics pipes and fittings -- Crushing decohesion test for polyethylene (PE) electrofusion assemblies