Imperfections in thermoplastic welds. Classification

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

27-02-2019

Publisher

British Standards Institution

This document specifies a system for classifying imperfections that may be encountered in thermoplastic welded joints during manufacture and provides examples of imperfections for the following welding processes: - heated tool butt welding; - heated tool socket welding; - electrofusion socket welding; - hot gas welding; - extrusion welding; - solvent socket welding. This document does not describe imperfections that may be generated during service or imperfections present before welding, which are due to poor preparation or assembly of components (e.g. fit up). The correct preparation and assembly of components (e.g. fit up) are described in the relevant welding procedure specification (WPS). This document is also not concerned with the search for the possible influence of these imperfections on the behaviour of joints in relation to the different types of stress to which the latter may be subjected or on methods for preventing such imperfections. This document can be used in conjunction with EN 16296 [1] to determine the acceptance of welds. Only imperfections giving rise to discontinuities of materials or changes in shape are taken into consideration in this document, specifying their type, their shape and their positions. This classification can be used to determine the possible origin or causes of the imperfections.

Committee	WEE/3
DocumentType	Standard
ISBN	9780580941924
Pages	30
PublisherName	British Standards Institution
Status	Current
Supersedes	BS EN 14728:2005

Standards	Relationship
EN 14728:2005	Identical
EN 14728:2019	Identical

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BS EN 14728:2019

Imperfections in thermoplastic welds. Classification

Abstract

Scope

General Product Information

International Equivalents

Category

Subcategory