DIN Standards Committee Welding and allied processes
Qualification of Welding Procedures for Plastic Materials
Abstract
This document specifies a procedure to qualify a preliminary welding procedure specification (pWPS) by welding procedure tests to produce a qualified welding procedure specification (WPS). NOTE 1 The application of this document ensures that the qualification of the pWPS is carried out according to a uniform test procedure. NOTE 2 The primary purpose of welding procedure qualification is to demonstrate that the joining process proposed for construction is capable of producing joints having the required mechanical properties for the intended application. This document applies to the following thermoplastic welding processes: - hot gas welding: round nozzle, speed, wedge; - extrusion welding; - heated tool welding: butt, socket, wedge; 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: - PVC (PVC-U, PVC-C); - PP (PP-B, PP-H, PP-R); - PE; - PVDF; - ECTFE, PFA and FEP; b) for lining membranes: - PVC-P; - PE; - ECB; - PP; c) for pipes and fittings only: - PA-U (PA-U 11, PA-U 12).
Begin
2024-09-26
WI
00249A6M
Planned document number
FprEN 18205
Responsible national committee
NA 092-00-32 AA - Joining of plastics
Responsible european committee
CEN/TC 249/WG 16 - Welding of thermoplastics
draft standard
Qualification of Welding Procedures for Plastic Materials
2025-06
Order from DIN Media
Qualification of Welding Procedures for Plastic Materials
2026-07
Order from DIN Media
