EN 13100-3:2004

SLOVENSKI STANDARD
01-marec-2005
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Non destructive testing of welded joints in thermoplastics semi-finished products - Part 3:
Ultrasonic testing
Zerstörungsfreie Prüfung von Schweißverbindungen thermoplastischer Kunststoffe - Teil
3: Ultraschallprüfung
Contrôle non destructif des assemblages soudés sur produits semi-finis en
thermoplastiques - Partie 3 : Contrôle par ultrasons
Ta slovenski standard je istoveten z: EN 13100-3:2004
ICS:
25.160.40 Varjeni spoji in vari Welded joints
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 13100-3
NORME EUROPÉENNE
EUROPÄISCHE NORM
November 2004
ICS 25.160.40
English version
Non destructive testing of welded joints in thermoplastics semi-
finished products - Part 3: Ultrasonic testing
Contrôle non destructif des assemblages soudés sur Zerstörungsfreie Prüfung von Schweißverbindungen
produits semi-finis en thermoplastiques - Partie 3 : Contrôle thermoplastischer Kunststoffe - Teil 3: Ultraschallprüfung
par ultrasons
This European Standard was approved by CEN on 14 October 2004.
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
© 2004 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 13100-3:2004: E
worldwide for CEN national Members.

Contents
page
Foreword.3
1 Scope .4
2 Normative references .4
3 Terms and definitions .4
4 Symbols and designations .4
5 General.5
6 Information required prior to examination.5
6.1 Examination procedure.5
6.2 Information required by the operator .5
6.3 Written examination procedure.6
7 Requirements for personnel and equipment .6
7.1 Personnel qualifications .6
7.2 Equipment .6
7.3 Probe parameters .6
8 Examination volume.7
9 Preparation of scanning surfaces.7
10 Range and sensitivity setting.8
10.1 General.8
10.2 Reference level.9
10.3 Evaluation levels.11
10.4 Transfer correction.11
10.5 Signal-to-noise ratio .11
11 Examination technique .11
11.1 Ultrasonic techniques .11
11.2 Location of indications .13
11.3 Evaluation of indications .14
12 Examination report .14
12.1 General.14
12.2 General data .14
12.3 Information relating to equipment .15
12.4 Information relating to examination technique .15
12.5 Results of the examination.15
Bibliography .16

Foreword
This document (EN 13100-3:2004) has been prepared by Technical Committee CEN/TC 249 “Plastics”, the
secretariat of which is held by IBN.
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 May 2005, and conflicting national standards shall be withdrawn at the
latest by May 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.
1 Scope
This document specifies methods for the manual ultrasonic examination of heated tool, electrofusion,
extrusion and hot gas joints in plastics materials. It applies to joints in single wall pipes and plates. The range
of thicknesses covered is from 10 mm to 100 mm.
This document does not specify acceptance levels of the indications.
2 Normative references
The following referenced documents are indispensable for the application 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 473, Non-destructive testing — Qualification and certification of NDT personnel — General principles
EN 583-2, Non-destructive testing — Ultrasonic examination — Part 2: Sensitivity and range setting
EN 583-4, Non-destructive testing — Ultrasonic examination — Part 4: Examination for discontinuities
perpendicular to the surface
EN 1330-2:1998, Non-destructive testing — Terminology — Part 2: Terms common to the non-destructive
testing methods
EN 1330-4:2000, Non-destructive testing — Terminology — Part 4: Terms used in ultrasonic testing
EN 12668-1, Non-destructive testing — Characterization and verification of ultrasonic examination
equipment — Part 1: Instruments
EN 12668-2, Non-destructive testing — Characterization and verification of ultrasonic examination
equipment — Part 2: Probes
EN 12668-3, Non-destructive testing — Characterization and verification of ultrasonic examination
equipment — Part 3: Combined equipment
ENV 583-6, Non-destructive testing — Ultrasonic examination – Part 6: Time-of-flight diffraction technique as
a method for detection and sizing of discontinuities
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 1330-2:1998 and EN 1330-4:2000
apply.
4 Symbols and designations
Symbols and designations are given in Table 1.
Table 1 — Symbols and designations
Symbol Designations Unit
t Thickness of parent material (thinnest part) mm
l Length of the indication mm
h Extension of the indication in depth direction mm
x Position of the indication in the longitudinal direction mm
y Position of the indication in the transverse direction mm
z Position of the indication in depth mm
D Diameter of the component mm
a Dimension of the wedge in the direction of examination mm
5 General
The purpose of this document is to describe general methods of ultrasonic examination for the most
commonly used welded joints in thermoplastics. The specific requirements specified by this document cover
the equipment, preparation, performance of the examination and reporting. Methods to be used for ultrasonic
assessment of indications and acceptance criteria shall be specified.
6 Information required prior to examination
6.1 Examination procedure
The following items shall be specified:
 method for setting the reference level;
 method to be used for evaluation of indications;
 acceptance levels;
 examination level;
 manufacturing and operation stage(s) at which the examination is to be carried out;
 qualification of personnel;
 whether or not a written examination procedure is required;
 requirements for written examination procedures.
6.2 Information required by the operator
Before any examination of a welded joint can begin, the operator shall have access to the following
information:
 written examination procedure, if required (see 6.3);
 type(s) of parent material;
 joint preparation and dimensions;
 welding procedure or relevant information on the welding process;
 reporting requirements.
6.3 Written examination procedure
The definitions and requirements in this document will normally satisfy the need for a written examination
procedure. When this is not the case, or when the techniques described in this document are not applicable to
the welded joint to be examined, additional written examination procedures shall be used.
7 Requirements for personnel and equipment
7.1 Personnel qualifications
Personnel performing examinations in accordance with this document shall be qualified to an appropriate level
in accordance with the relevant document, e.g. EN 473.
In addition to a general knowledge of ultrasonic weld inspection, the personnel shall be aware of testing
problems specifically associated with the thermoplastic material and type of welded joints to be examined.
7.2 Equipment
Any equipment used in conjunction with this document shall comply with the requirements of EN 12668-1 to
EN 12668-3. Prior to the publication of a document related to the subject, the corresponding national
documents may be used.
7.3 Probe parameters
7.3.1 Frequency
Only longitudinal (compression) wave transducers shall be used for the inspection of thermoplastics. The
frequency of the transducers shall be in the range 1 MHz to 5 MHz and shall be chosen such that flaw
sensitivity is maximised without compromising signal-to-noise performance.
To improve signal-to-noise performance piezo-composite transducers may be used.
7.3.2 Angles of incidence
The probe angle(s) used shall ensure that the weld fusion face(s) are examined at, or as near as possible to,
normal incidence. This means that for electrofusion joints, for example, a 0° probe angle shall be used.
7.3.3 Focusing
For the examination of electrofusion joints focusing probes should be used. These probes shall be focused to
the depth of the welded interfaces, i.e. their focal distance shall be equal to the wall thickness of the socket.
Focused probes should not be used for the examination of heated tool, extrusion or hot gas welded joints
unless otherwise specified.
7.3.4 Wedge material
Wedges should be made of PTFE.
7.3.5 Adoption of probes to curved scannin
...