EN 12814-2:2021

SLOVENSKI STANDARD
01-marec-2021
Nadomešča:
SIST EN 12814-2:2000
Preskušanje zvarjenih spojev plastomernih polizdelkov - 2. del: Trgalni preskus
Testing of welded joints of thermoplastics semi-finished products - Part 2: Tensile test
Prüfen von Schweißverbindungen aus thermoplastischen Kunststoffen - Teil 2:
Zugversuch
Essais des assemblages soudés sur produits semi-finis en thermoplastiques - Partie 2 :
Essai de traction
Ta slovenski standard je istoveten z: EN 12814-2:2021
ICS:
25.160.40 Varjeni spoji in vari Welded joints and welds
83.080.01 Polimerni materiali na Plastics in general
splošno
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 12814-2
EUROPEAN STANDARD
NORME EUROPÉENNE
January 2021
EUROPÄISCHE NORM
ICS 25.160.40 Supersedes EN 12814-2:2000
English Version
Testing of welded joints of thermoplastics semi-finished
products - Part 2: Tensile test
Essais des assemblages soudés sur produits semi-finis Prüfen von Schweißverbindungen aus
en thermoplastiques - Partie 2 : Essai de traction thermoplastischen Kunststoffen - Teil 2: Zugversuch
This European Standard was approved by CEN on 20 December 2020.

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 CEN-CENELEC Management Centre 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 CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 12814-2:2021 E
worldwide for CEN national Members.

Contents Page
European foreword .3
1 Scope .4
2 Normative references .4
3 Terms, definitions, symbols and abbreviated terms .4
3.1 Terms and definitions .4
3.2 Symbols and abbreviated terms .4
4 Principle of the test .5
5 Sampling procedures .5
6 Dimensions of test specimens .6
7 Cutting of test specimens .8
8 Mechanical testing .8
9 Test equipment .8
10 Determination of the short-term tensile welding factor .8
11 Test report .9
Annex A (informative) Tensile test specimen for overlap joints . 11
Annex B (informative) Recommended test speeds for some thermoplastics materials . 12
Annex C (normative) Notched tensile test specimen . 13
Bibliography . 14

European foreword
This document (EN 12814-2:2021) has been prepared by Technical Committee CEN/TC 249 “Plastics”, the
secretariat of which is held by NBN.
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 July 2021, and conflicting national standards shall be withdrawn at
the latest by July 2021.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 12814-2:2000.
In comparison with the previous edition, the following technical modifications have been made:
— the reference standards ISO 5893 and ISO 13953 have been changed to undated;
— a new annex (Annex A), describing the tensile test specimen geometry for overlap joints, has been
added.
According to the CEN-CENELEC Internal Regulations, the national standards organisations of the following
countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus,
Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy,
Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of North
Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United
Kingdom.
1 Scope
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.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
EN 13100-1, Non destructive testing of welded joints of thermoplastics semi-finished products - Part 1: Visual
examination
EN ISO 527-1, Plastics - Determination of tensile properties - Part 1: General principles (ISO 527-1)
ISO 5893, Rubber and plastics test equipment - Tensile, flexural and compression types (constant rate of
traverse) - Specification
ISO 13953, Polyethylene (PE) pipes and fittings - Determinationof the tensile strength of test specimens from
a butt-fused joint
3 Terms, definitions, symbols and abbreviated terms
3.1 Terms and definitions
No terms and definitions are listed in this document.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at http://www.electropedia.org/
— ISO Online browsing platform: available at https://www.iso.org/obp
3.2 Symbols and abbreviated terms
For the purposes of this document, the symbols and abbreviated terms given in Table 1 apply.

Table 1 — Symbols and abbreviated terms
Symbols and Designations Units
abbreviated
term
a Minimum measured thickness of the test mm
specimen within calibrated and parallel length
a Nominal thickness of the test piece mm
n
b Width of calibrated and parallel length of the test mm
specimen
b Width of shoulder of the test specimen mm
Dn Nominal outside diameter of the tube mm
F The value of force of the unwelded test N
r
specimens taken from the
...