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BSI BS EN 16296:2021

Imperfections in thermoplastics welded joints. Quality levels
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BSI BS EN 16296:2021

Imperfections in thermoplastics welded joints. Quality levels

PUBLISH DATE 2021
PAGES 20
BSI BS EN 16296:2021

This document specifies quality levels for imperfections in thermoplastics welded joints that have cooled to ambient temperature and is applicable to material thickness above 2,0 mm.

Three quality levels are specified in order to permit application for a wide range of welded fabrication. They are designated by symbols B, C and D, where B is the most stringent. The quality levels refer to production quality and not to the fitness-for-purpose (see 3.2) of the manufactured product.

The quality level necessary are expected to be defined by the application standard or by the fabricator in conjunction with the user and/or other parties concerned. The level is expected to be prescribed before the start of production, preferably at the enquiry or order stage.

This document applies to the following thermoplastic materials in Table 1:

Table 1
Thermoplastic materials
Abbreviation Material description
ABS Acrylonitrile-butadiene-styrene plastic
ECTFE Ethylene-chlorotrifluoroethylene copolymer
FEP

PA-U

Fluorinated ethylene propylene

Unplasticized polyamide

PB Polybutylene
PE Polyethylene
PFA Perfluoroalkoxy
PP-B Polypropylene block copolymer
PP-H Polypropylene homopolymer
PP-R Polypropylene random copolymer
PVC-C Chlorinated polyvinyl chloride
PVC-U Unplasticized polyvinyl chloride (rigid PVC)
PVDF Polyvinylidene fluoride

and to the following welding processes:

  1. heated tool welding;

  2. electrofusion socket welding;

  3. hot gas welding using filler rod only;

  4. extrusion welding;

  5. solvent welding of pipes.

SDO BSI: British Standards Institution
Document Number EN 16296
Publication Date May 20, 2021
Language en - English
Page Count 20
Revision Level
Supercedes
Committee WEE/3
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