SIST EN ISO 13588:2019

SLOVENSKI STANDARD
SIST EN ISO 13588:2019
01-september-2019
Nadomešča:
SIST EN ISO 13588:2013
Neporušitveno preskušanje zvarnih spojev - Ultrazvočno preskušanje - Uporaba
avtomatske tehnike s faznim krmiljenjem (FA-tehnika) (ISO 13588:2019)
Non-destructive testing of welds - Ultrasonic testing - Use of automated phased array
technology (ISO 13588:2019)
Zerstörungsfreie Prüfung von Schweißverbindungen - Ultraschallprüfung - Anwendung
von automatisierter phasengesteuerter Array-Technologie (ISO 13588:2019)
Contrôle non destructif des assemblages soudés - Contrôle par ultrasons - Utilisation de
la technique multi-éléments automatisés (ISO 13588:2019)
Ta slovenski standard je istoveten z: EN ISO 13588:2019
ICS:
25.160.40 Varjeni spoji in vari Welded joints and welds
SIST EN ISO 13588:2019 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 13588:2019

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SIST EN ISO 13588:2019


EN ISO 13588
EUROPEAN STANDARD

NORME EUROPÉENNE

March 2019
EUROPÄISCHE NORM
ICS 25.160.40 Supersedes EN ISO 13588:2012
English Version

Non-destructive testing of welds - Ultrasonic testing - Use
of automated phased array technology (ISO 13588:2019)
Contrôle non destructif des assemblages soudés - Zerstörungsfreie Prüfung von Schweißverbindungen -
Contrôle par ultrasons - Utilisation de la technique Ultraschallprüfung - Anwendung von automatisierter
multi-éléments automatisés (ISO 13588:2019) phasengesteuerter Array-Technologie (ISO
13588:2019)
This European Standard was approved by CEN on 9 February 2019.

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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, 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
© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 13588:2019 E
worldwide for CEN national Members.

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SIST EN ISO 13588:2019
EN ISO 13588:2019 (E)
Contents Page
European foreword . 3
Endorsement notice . 3

2

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SIST EN ISO 13588:2019
EN ISO 13588:2019 (E)
European foreword
This document (EN ISO 13588:2019) has been prepared by Technical Committee ISO/TC 44 "Welding
and allied processes" in collaboration with Technical Committee CEN/TC 121 “Welding and allied
processes” the secretariat of which is held by DIN.
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 September 2019, and conflicting national standards
shall be withdrawn at the latest by September 2019.
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 ISO 13588:2012.

According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
Endorsement notice
The text of ISO 13588:2019 has been approved by CEN as EN ISO 13588:2019 without any modification.


3

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SIST EN ISO 13588:2019

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SIST EN ISO 13588:2019
INTERNATIONAL ISO
STANDARD 13588
Second edition
2019-02
Non-destructive testing of welds —
Ultrasonic testing — Use of automated
phased array technology
Essais non destructifs des assemblages soudés — Contrôle par
ultrasons — Utilisation de la technique multi-éléments automatisés
Reference number
ISO 13588:2019(E)
©
ISO 2019

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SIST EN ISO 13588:2019
ISO 13588:2019(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO 2019
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting
on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address
below or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2019 – All rights reserved

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SIST EN ISO 13588:2019
ISO 13588:2019(E)

Contents Page
Foreword .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Testing levels . 2
5 Information required prior to testing . 4
5.1 Items to be defined prior to procedure development . 4
5.2 Specific information required by the operator before testing . 4
5.3 Written test procedure . 5
6 Requirements for personnel and test equipment . 5
6.1 Personnel qualifications . 5
6.2 Test equipment . 6
6.2.1 General. 6
6.2.2 Ultrasonic instrument . 6
6.2.3 Ultrasonic probes . 6
6.2.4 Scanning mechanisms . 6
7 Preparation for testing . 6
7.1 Volume to be tested . 6
7.2 Verification of the test setup . 6
7.3 Scan increment setting . 6
7.4 Geometry considerations . 7
7.5 Preparation of scanning surfaces . 7
7.6 Temperature . 7
7.7 Couplant . 7
8 Testing of base material . 7
9 Range and sensitivity settings . 8
9.1 Settings . 8
9.1.1 General. 8
9.1.2 Pulse-echo time window . 8
9.1.3 Pulse-echo sensitivity settings . 8
9.1.4 TOFD settings . 8
9.2 Checking of the settings . 8
9.3 Reference blocks . 9
9.3.1 General. 9
9.3.2 Material . 9
9.3.3 Dimensions and shape . 9
9.3.4 Reference reflectors . 9
10 Equipment checks .10
11 Procedure qualification .10
12 Weld testing .10
13 Data storage .11
14 Interpretation and analysis of phased array data .11
14.1 General .11
14.2 Assessing the quality of the phased array data .11
14.3 Identification of relevant indications .11
14.4 Classification of relevant indications .11
14.5 Determination of location .12
14.6 Determination of length and height .12
14.6.1 General.12
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SIST EN ISO 13588:2019
ISO 13588:2019(E)

14.6.2 Determination of length .12
14.6.3 Determination of height .12
14.7 Evaluation against acceptance criteria .13
15 Test report .13
Annex A (informative) Typical reference blocks and reference reflectors .15
Annex B (informative) Illustrations of possible signals to be used .20
Bibliography .24
iv © ISO 2019 – All rights reserved

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SIST EN ISO 13588:2019
ISO 13588:2019(E)

Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www .iso .org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see www .iso
.org/iso/foreword .html.
This document was prepared by Technical Committee ISO/TC 44, Welding and allied processes,
Subcommittee SC 5, Testing and inspection of welds.
Any feedback, question or request for official interpretation related to any aspect of this document
should be directed to the Secretariat of ISO/TC 44/SC 5 via your national standards body. A complete
listing of these bodies can be found at www .iso .org/members .html. Official interpretations, where they
exist, are available from this page: https: //committee .iso .org/sites/tc44/home/interpretation .html.
This second edition cancels and replaces the first edition (ISO 13588:2012), which has been technically
revised. The main changes compared to the previous edition are as follows:
— Clauses 2 and 3 have been updated;
— a method of length and height measurement has been added;
— new Annex B has been added;
— the document has been editorially updated.
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SIST EN ISO 13588:2019

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SIST EN ISO 13588:2019
INTERNATIONAL STANDARD ISO 13588:2019(E)
Non-destructive testing of welds — Ultrasonic testing —
Use of automated phased array technology
1 Scope
This document specifies the application of the phased array technology for the semi- or fully automated
ultrasonic testing of fusion-welded joints in metallic materials of minimum thickness 6 mm. It applies
to full penetration welded joints of simple geometry in plates, pipes, and vessels, where both the weld
and the parent material are low-alloy and/or fine grained steel. For the testing of welds in other steel
materials this document gives guidance. For coarse-grained or austenitic steels, ISO 22825 applies in
addition to this document.
This document provides guidance on the specific capabilities and limitations of the phased array
technology for the detection, location, sizing and characterization of discontinuities in fusion-welded
joints. Phased array technology can be used as a stand-alone technology or in combination with other
non-destructive testing (NDT) methods or techniques, for manufacturing inspection, pre-service and
for in-service inspection.
This document specifies four testing levels, each corresponding to a different probability of detection of
imperfections.
This document permits assessment of discontinuities for acceptance purposes based either on
amplitude (equivalent reflector size) and length, or on height and length.
This document does not include acceptance levels for discontinuities.
This document is not applicable for automated testing of welds during the production of steel products
covered by ISO 10893-8, ISO 10893-11 and ISO 3183.
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.
ISO 5577, Non-destructive testing — Ultrasonic testing — Vocabulary
ISO 5817, Welding — Fusion-welded joints in steel, nickel, titanium and their alloys (beam welding
excluded) — Quality levels for imperfections
ISO 9712, Non-destructive testing — Qualification and certification of NDT personnel
ISO 17640, Non-destructive testing of welds — Ultrasonic testing — Techniques, testing levels, and
assessment
ISO 10863, Non-destructive testing of welds — Ultrasonic testing — Use of time-of-flight diffraction
technique (TOFD)
ISO 18563-1, Non-destructive testing — Characterization and verification of ultrasonic phased array
equipment – Part 1: Instruments
ISO 18563-2, Non-destructive testing — Characterization and verification of ultrasonic phased array
equipment — Part 2: Probes
ISO 18563-3, Non-destructive testing — Characterization and verification of ultrasonic phased array
equipment — Part 3: Combined systems
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SIST EN ISO 13588:2019
ISO 13588:2019(E)

ISO 19285, Non-destructive testing of welds — Phased array ultrasonic testing (PAUT) — Acceptance levels
ISO 22825, Non-destructive testing of welds — Ultrasonic testing — Testing of welds in austenitic steels
and nickel-based alloys
EN 16018, Non-destructive testing — Terminology — Terms used in ultrasonic testing with phased arrays
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 5577, EN 16018 and the
following apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https: //www .iso .org/obp
— IEC Electropedia: available at http: //www .electropedia .org/
3.1
phased array image
one- or two-dimensional display, constructed from the collected information of phased array operation
3.2
indication
phased array indication
pattern or disturbance in the phased array image (3.1) which can need further evaluation
3.3
phased array setup
probe arrangement defined by probe characteristics (e.g. frequency, probe element size, beam angle,
wave mode), probe position (3.4), and the number of probes
3.4
probe position
PP
distance between the front of the wedge and the weld centre line
3.5
scan increment
distance between successive data collection points in the direction of scanning (mechanically or
electronically)
3.6
skewed scan
scan performed with a skewed angle
Note 1 to entry: The skewed angle can be achieved electronically or by means of probe orientation.
3.7
mode
phased array mode
combination of ultrasonic beams created by phased array technology, e.g. fixed angle, E-scan, S-scan
4 Testing levels
Quality requirements for welded joints are mainly associated with the material, welding process and
service conditions. To comply with all of these requirements, this document specifies four testing levels
(A, B, C and D).
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SIST EN ISO 13588:2019
ISO 13588:2019(E)

From testing level A to testing level C, an increasing probability of detection is achieved by an increasing
testing coverage, e.g. number of incidences, combining techniques.
Testing level D may be agreed for special applications using a written procedure which shall take
into account the general requirements of this document. This includes tests of metals other than
ferritic steel, tests on partial penetration welds, tests with automated equipment and tests at object
temperatures outside the range. For coarse-grained or austenitic steels, ISO 22825 shall also be used.
In general, the testing levels are related to quality levels (e.g. according to ISO 5817). The appropriate
testing level can be specified by standards for the testing of welds (e.g. ISO 17635), by product standards
or by other documents. When ISO 17635 is specified, the testing levels in relation to ISO 5817 as given
in Table 1 shall be used.
Table 1 — Quality levels of ISO 5817 and corresponding testing levels
Testing level Quality level in ISO 5817
A C, D
B B
C by agreement
D special application
Table 2 shows the minimum requirements and in all cases, as described in 7.2, the setup shall be verified
with a reference block. In cases where scanning is performed from one face (excluding TOFD), half and
full skip shall be used and stored; if scanning is performed from both faces, half skip is sufficient.
If diffraction signals are detected they may be used for sizing.
If the evaluation of the discontinuities is based on amplitude only, the deviation of the beam direction
from the normal to the weld bevel shall not exceed 6°. If this is not possible because of the geometry of
the test object (e.g. weld cap, narrow gap weld), the scan plan shall describe the corrective measures
and explain how these areas to be tested shall be covered with enough sensitivity
Table 2 — Description of testing levels
Testing levels
A B C
Mode Example of sketches
Reference blocks (see Annex A)
Block A Block B Block C
Test set-up
Fixed angles at fixed
probe position to Not suitable as single
Two sides Two sides
weld technique
a
(line scans)
Fixed angles with ras-
One side One side One side
a
ter scanning
E-scan at fixed probe
Two sides with two an-
position One side Two sides
c
gles
a
(line scan)
S-scan at fixed probe Two sides or
Two sides or two probe
position to weld One side two probe posi-
positions
a
(line scan) tions
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SIST EN ISO 13588:2019
ISO 13588:2019(E)

Table 2 (continued)
Testing levels
A B C
Mode Example of sketches
Reference blocks (see Annex A)
Block A Block B Block C
S-scan raster Not recommended One side
TOFD generated with Not recommended, TOFD testing in
One setup
a
phased array accordance with ISO 10863
b
Skewed scan If required by specification
a
  For testing level C, at least two different test setups from this table shall be combined; at least one of them
shall be S-scan or TOFD.
b
  If detection of transverse discontinuities is required by specification, a suitable additional test setup shall be
applied. Skewed probe or electronically skewed beam can be used.
c
  At least 10° difference between angles.
5 Information required prior to testing
5.1 Items to be defined prior to procedure development
Information on the following items is required:
a) purpose and extent of testing;
b) testing levels;
c) acceptance criteria;
d) specification of reference blocks;
e) manufacturing or operation stage at which the testing is to be carried out;
f) weld details and information on the size of the heat-affected zone;
g) requirements for access and surface conditions and temperature;
h) personnel qualifications;
i) reporting requirements.
5.2 Specific information required by the operator before testing
Before any testing of a welded joint can begin, the operator shall have access to all the information as
specified in 5.1 together with the following additional information:
a) written test procedure;
b) type(s) of parent material and product form (i.e. cast, forged, rolled);
c) joint preparation and dimensions;
d) welding instruction or relevant information on the welding process;
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SIST EN ISO 13588:2019
ISO 135
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