iTeh StandardsiTeh Standards
EURUSD
Your shopping cart is empty.
CEN

EN 14728:2005

(Main)

Imperfections in thermoplastic welds - Classification

Imperfections in thermoplastic welds - Classification

This document specifies a classification and a description of imperfections likely to be encountered in thermoplastic welded joints.
This document applies to the following welding processes:
-   heated tool welding;
-   electrofusion welding;
-   hot gas welding;
-   extrusion welding.
This document applies to the following group of materials:
-   PVC-C;
-   PVC-U including PVC-NI, PVC-RI, PVC-HI;
-   PP including PP-B, PP-H, PP-R;
-   PE;
-   PVDF;
-   ECTFE;
-   FEP;
-   PFA.
This document is not concerned with the search for the possible influence of these defects on the behaviour of joints in relation to the different types of stress to which the latter may be subjected or on method for preventing such defects.
It cannot therefore be used for the acceptance of welds which is defined in quality level standards (see [1]).
Only defects 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, without however always indicating their origin or their causes.

Unregelmäßigkeiten an Schweißverbindungen von thermoplastischen Kunststoffen - Einteilung

Dieses Dokument legt eine Einteilung  und Beschreibung  von  Unregelmäßigkeiten,  die  in  Schweißverbindungen
von thermoplastischen Kunststoffen auftreten können, fest.
Dieses Dokument gilt für folgende Schweißverfahren:
-  Heizelementschweißen;
-  Heizwendelschweißen;
-  Warmgasschweißen;
- Extrusionsschweißen.
Es gilt für folgende Werkstoffgruppen:
- PVC-C;
- PVC-U einschließlich PVC-NI, PVC-RI und PVC-HI;
-  PP einschließlich PP-B, PP-H und PP-R;
- PE;
- PVDF;
- ECTFE;
- FEP;
- PFA.

Défauts dans les assemblages soudés en thermoplastiques - Classification

Le présent document spécifie une classification et une description des défauts susceptibles d�être rencontrés
dans les assemblages soudés en thermoplastiques.
Le présent document s�applique aux procédés de soudage suivants :
-  soudage par élément chauffant ;
-  soudage par électrofusion ;
-  soudage au gaz chaud ;
-  soudage par extrusion.
Le présent document s�applique aux groupes de matériaux suivants :
-  PVC-C ;
-  PVC-U, y compris PVC-NI, PVC-RI, PVC-HI ;
-  PP, y compris PP-B, PP-H, PP-R ;
-  PE ;
-  PVDF ;
-  ECTFE ;

Napake v plastomenih zvarih - Razvrstitev

General Information

Status
Withdrawn
Publication Date
03-May-2005
Withdrawal Date
19-Feb-2019
ICS
25.160.40 - Welded joints and welds
Technical Committee
CEN/TC 249 - Plastics
Drafting Committee
CEN/TC 249/SC 5/WG 8 - Imperfections in thermoplastic welded joints
Current Stage
9960 - Withdrawal effective - Withdrawal
Completion Date
20-Feb-2019
Ref Project
SIST EN 14728:2005 - Imperfections in thermoplastic welds - Classification

Relations

Replaced By
EN 14728:2019 - Imperfections in thermoplastic welds - Classification
Effective Date
08-Jun-2022

Buy Standard

EN 14728:2005EN 14728:2005
PreviousNext
Standard
EN 14728:2005
English language
14 pages
sale 10% off
Preview
sale 10% off
Preview
e-Library read for
1 day

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 14728:2005
01-julij-2005
Napake v plastomenih zvarih - Razvrstitev
Imperfections in thermoplastic welds - Classification
Unregelmäßigkeiten an Schweißverbindungen von thermoplastischen Kunststoffen -
Einteilung
Défauts dans les assemblages soudés en thermoplastiques - Classification
Ta slovenski standard je istoveten z: EN 14728:2005
ICS:
25.160.40 Varjeni spoji in vari Welded joints
SIST EN 14728:2005 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------

SIST EN 14728:2005

---------------------- Page: 2 ----------------------

SIST EN 14728:2005
EUROPEAN STANDARD
EN 14728
NORME EUROPÉENNE
EUROPÄISCHE NORM
May 2005
ICS 25.160.40
English version
Imperfections in thermoplastic welds - Classification
Défauts dans les assemblages soudés en Unregelmäßigkeiten an Schweißverbindungen von
thermoplastiques - Classification thermoplastischen Kunststoffen - Einteilung
This European Standard was approved by CEN on 21 March 2005.
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 Central Secretariat 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 Central Secretariat has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,
Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,
Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2005 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 14728:2005: E
worldwide for CEN national Members.

---------------------- Page: 3 ----------------------

SIST EN 14728:2005
EN 14728:2005 (E)
Contents Page
Foreword.3
1 Scope .4
2 Normative references .4
3 Symbols and designations .5
4 Definition and classification of imperfections.5
Annex A (normative) Explanations for characters 3, 4 and 5 according to prCR ISO/TR 17845.12
Bibliography .14

2

---------------------- Page: 4 ----------------------

SIST EN 14728:2005
EN 14728:2005 (E)
Foreword
This document (EN 14728:2005) has been prepared by Technical Committee CEN/TC 249 “Plastics”, the
secretariat of which is held by IBN/BIN.
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 November 2005, and conflicting national standards shall be withdrawn at the latest
by November 2005.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark,
Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
3

---------------------- Page: 5 ----------------------

SIST EN 14728:2005
EN 14728:2005 (E)
1 Scope
This document specifies a classification and a description of imperfections likely to be encountered in thermoplastic
welded joints.
This document applies to the following welding processes:
 heated tool welding;
 electrofusion welding;
 hot gas welding;
 extrusion welding.
This document applies to the following group of materials:
 PVC-C;
 PVC-U including PVC-NI, PVC-RI,
...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.

This May Also Interest You

CEN
EN 12814-7:2024(Main)
Testing of welded joints of thermoplastics semi-finished products - Part 7: Tensile test with waisted test specimens
kSIST FprEN 12814-7:2023

This document specifies the dimensions, the method of sampling, the preparation of the test specimens and the conditions for performing the tensile test with waisted test specimens in order to determine the tensile energy welding factor.
A tensile test with waisted specimens can be used in conjunction with other tests (e.g. bend, tensile, tensile creep, macro, etc.) to assess the performance of welded assemblies, made from thermoplastics materials.
The test is applicable to co-axial or co-planar heated tool butt welded assemblies made from thermoplastics materials filled or unfilled, but not reinforced. It is not applicable to tubular assemblies with a nominal outside diameter less than 90 mm.

  • Draft
    11 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CEN
EN 16296:2021(Main)
Imperfections in thermoplastics welded joints - Quality levels
SIST 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:
and to the following welding processes:
-   heated tool welding;
-   electrofusion socket welding;
-   hot gas welding using filler rod only;
-   extrusion welding;
-   solvent welding of pipes.

  • Standard
    22 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CEN
EN 12814-8:2021(Main)
Testing of welded joints of thermoplastics semi-finished products - Part 8: Requirements
SIST EN 12814-8:2021

This document provides the requirements for the tests made on welded thermoplastics semi-finished products.
The selection of the appropriate test method(s) is made in accordance with the particular type and application of welded product.
The test results depend on the conditions of manufacture for the test specimen and on the test conditions. They can therefore only be related to the behaviour of the product or can only be used for designing a structure, if the test conditions can be related to the service conditions.

  • Standard
    17 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CEN
EN 12814-2:2021(Main)
Testing of welded joints of thermoplastics semi-finished products - Part 2: Tensile test
SIST EN 12814-2:2021

This document specifies the dimensions, the method of sampling, the preparation of the test specimens and the conditions for performing the tensile test in order to determine the short-term tensile welding factor.
A tensile test can be used in conjunction with other tests (e.g. bend, tensile creep, macro) to assess the performance of welded assemblies, made from thermoplastics materials.
The test is applicable to welded semi-finished products made from thermoplastics materials filled or unfilled, but not reinforced, irrespective of the welding process used.

  • Standard
    14 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CEN
EN 13100-2:2019(Main)
Non-destructive testing of welded joints in thermoplastics semi- finished products - Part 2: X-ray radiographic testing
SIST EN 13100-2:2019

This document specifies fundamental radiographic techniques with film, which enable repeatable results to be obtained economically.
This document applies to the X-ray radiographic examination of heated tool, electrofusion, extrusion and hot gas joints in plastics materials.
It applies to joints in solid wall pipes and plates with a range of thicknesses from 5 mm to 100 mm. It only applies to pipes containing air or other gases at the time of X-ray testing.
This document does not specify acceptance levels of the indications.

  • Standard
    20 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CEN
EN 14728:2019(Main)
Imperfections in thermoplastic welds - Classification
SIST EN 14728:2019

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.

  • Standard
    33 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CEN
EN 12814-4:2018/AC:2018(Corrigendum)
Testing of welded joints of thermoplastics semi-finished products - Part 4: Peel test
SIST EN 12814-4:2018/AC:2018

This document specifies the dimensions, the method of sampling and the preparation of the test specimens, and also the conditions for performing the peel test perpendicular to the weld in order to determine the peel resistance and the failure behaviour.
A peel test can be used in conjunction with other tests (e.g. tensile creep, macroscopic examination...) to assess the performance of welded assemblies, made from thermoplastics materials.
Peel tests are applicable to overlap welded assemblies made from thermoplastics materials.
The T-peel test as defined in Clause 5 will be used only for assessing welded sheet assemblies. This test is not applicable to welded test pieces containing sheets of different nominal thickness.
The decohesion test as defined in Clause 6 will be used only for assessing electrofusion joints with nominal thickness of pipe/fitting greater than 10 mm.
For socket fusion and for electrofusion socket joints with nominal outside diameter less than or equal to 90 mm, a crush test will be used, as defined in Clause 7.
The crush test can also be used for electrofusion joints with outside diameters greater than 90 mm.
The crush test for electrofusion saddle joints will be performed in accordance with ISO 13955 [1].
NOTE   A decohesion test is also defined in ISO 13954 [2].
The tests defined in this standard are not intended to be used for assessment and/or qualification of thermoplastic fittings that already have their own requirements, e.g. polyethylene fittings according to EN 1555-3 [3] and EN 12201-3 [4].

  • Corrigendum
    2 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CEN
EN 12814-4:2018(Main)
Testing of welded joints of thermoplastics semi-finished products - Part 4: Peel test
SIST EN 12814-4:2018

This document specifies the dimensions, the method of sampling and the preparation of the test specimens, and also the conditions for performing the peel test perpendicular to the weld in order to determine the peel resistance and the failure behaviour.
A peel test can be used in conjunction with other tests (e.g. tensile creep, macroscopic examination...) to assess the performance of welded assemblies, made from thermoplastics materials.
Peel tests are applicable to overlap welded assemblies made from thermoplastics materials.
The T-peel test as defined in Clause 5 will be used only for assessing welded sheet assemblies. This test is not applicable to welded test pieces containing sheets of different nominal thickness.
The decohesion test as defined in Clause 6 will be used only for assessing electrofusion joints with nominal thickness of pipe/fitting greater than 10 mm.
For socket fusion and for electrofusion socket joints with nominal outside diameter less than or equal to 90 mm, a crush test will be used, as defined in Clause 7.
The crush test can also be used for electrofusion joints with outside diameters greater than 90 mm.
The crush test for electrofusion saddle joints will be performed in accordance with ISO 13955 [1].
NOTE   A decohesion test is also defined in ISO 13954 [2].
The tests defined in this standard are not intended to be used for assessment and/or qualification of thermoplastic fittings that already have their own requirements, e.g. polyethylene fittings according to EN 1555-3 [3] and EN 12201-3 [4].

  • Standard
    16 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CEN
EN 13100-1:2017(Main)
Non destructive testing of welded joints of thermoplastics semi-finished products - Part 1: Visual examination
SIST EN 13100-1:2017

This European standard covers the visual examination of welds in thermoplastic materials. It may also be applied to visual testing of the joint prior to and during the welding.

  • Standard
    7 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CEN
EN 12814-3:2014(Main)
Testing of welded joints in thermoplastics semi-finished products - Part 3: Tensile creep test
SIST EN 12814-3:2014

This European Standard specifies the dimensions, the method of sampling and the preparation of the test specimens, and the conditions for performing the tensile creep test perpendicular to the weld in order to determine the long-term tensile welding factor.
A tensile creep test may be used in conjunction with other tests (e.g. bend test, tensile test, macrographic examination,...) to assess the performance of welded assemblies, made from thermoplastics materials.
The test is applicable to welded assemblies made from thermoplastics materials filled or unfilled such as tubes and fittings, sheets, plates and profiles, but not reinforced, irrespective of the welding process used.

  • Standard
    25 pages
    English language
    sale 10% off
    e-Library read for
    1 day