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SLOVENSKI STANDARD
01-marec-2023
Nadomešča:
SIST EN ISO 17636-2:2013
Neporušitveno preskušanje zvarnih spojev - Radiografsko preskušanje - 2. del:
Tehnike z rentgenskimi in gama žarki z uporabo digitalnih detektorjev (ISO 17636-
2:2022)
Non-destructive testing of welds - Radiographic testing - Part 2: X- and gamma-ray
techniques with digital detectors (ISO 17636-2:2022)
Zerstörungsfreie Prüfung von Schweißverbindungen - Durchstrahlungsprüfung - Teil 2:
Röntgen- und Gammastrahlungstechniken mit digitalen Detektoren (ISO 17636-2:2022)
Essais non destructifs des assemblages soudés - Contrôle par radiographie - Partie 2:
Techniques par rayons X ou gamma à l'aide de détecteurs numériques (ISO 17636-
2:2022)
Ta slovenski standard je istoveten z: EN ISO 17636-2:2022
ICS:
25.160.40 Varjeni spoji in vari Welded joints and welds
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN ISO 17636-2
EUROPEAN STANDARD
NORME EUROPÉENNE
October 2022
EUROPÄISCHE NORM
ICS 25.160.40 Supersedes EN ISO 17636-2:2013
English Version
Non-destructive testing of welds - Radiographic testing -
Part 2: X- and gamma-ray techniques with digital detectors
(ISO 17636-2:2022)
Essais non destructifs des assemblages soudés - Zerstörungsfreie Prüfung von Schweißverbindungen -
Contrôle par radiographie - Partie 2: Techniques par Durchstrahlungsprüfung - Teil 2: Röntgen- und
rayons X ou gamma à l'aide de détecteurs numériques Gammastrahlungstechniken mit digitalen Detektoren
(ISO 17636-2:2022) (ISO 17636-2:2022)
This European Standard was approved by CEN on 23 August 2022.
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, Türkiye 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
© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 17636-2:2022 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
European foreword
This document (EN ISO 17636-2:2022) 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 April 2023, and conflicting national standards shall be
withdrawn at the latest by April 2023.
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 17636-2:2013.
Any feedback and questions on this document should be directed to the users’ national standards
body/national committee. A complete listing of these bodies can be found on the CEN website.
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, 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, Türkiye and the
United Kingdom.
Endorsement notice
The text of ISO 17636-2:2022 has been approved by CEN as EN ISO 17636-2:2022 without any
modification.
INTERNATIONAL ISO
STANDARD 17636-2
Second edition
2022-09
Non-destructive testing of welds —
Radiographic testing —
Part 2:
X- and gamma-ray techniques with
digital detectors
Essais non destructifs des assemblages soudés — Contrôle par
radiographie —
Partie 2: Techniques par rayons X ou gamma à l'aide de détecteurs
numériques
Reference number
ISO 17636-2:2022(E)
ISO 17636-2:2022(E)
© ISO 2022
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
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Published in Switzerland
ii
ISO 17636-2:2022(E)
Contents Page
Foreword .v
1 S c op e . 1
2 Nor m at i ve r ef er enc e s . 1
3 Terms and definitions . 2
4 S ymbols and abbreviated terms.6
5 Classification of radiographic techniques and compensation principles .8
5.1 C lassification . 8
5.2 C ompensation principles, CP I, CP II or CP III . 8
5.2.1 G eneral . 8
5.2.2 C ompensation principle I (CP I) . 8
5.2.3 C ompensation principle II (CP II) . 8
5.2.4 C ompensation principle III (CP III) . 8
5 . 2 . 5 T he or e t ic a l b ac k g r ou nd . 9
6 General preparations and requirements . 9
6.1 Protection against ionizing radiation . 9
6.2 S urface preparation and stage of manufacture . 9
6.3 L ocation of the weld in the radiograph . 9
6.4 I dentification of radiographs . 9
6 . 5 M a rk i n g . 9
6.6 O verlap of digital images . 10
6.7 T ypes and positions of image quality indicators (IQIs) . 10
6.7.1 General . 10
6.7.2 Duplex wire IQIs. 10
6.7.3 Single wire or step-hole IQIs . 10
6.8 E valuation of image quality . 11
6.9 M inimum image quality values.12
6.10 Personnel qualification . 12
7 R e c om mende d t e c h n ique s .13
7.1 Te s t a r r a n g ement s . 13
7.1.1 G eneral .13
7.1.2 S ingle-wall penetration of plane objects (see Figure 1) . 14
7.1.3 S ingle-wall penetration of curved objects with the source outside the
object (see Figures 2 to 4) . 14
7.1.4 S ingle-wall penetration of curved objects with the source inside the object
for panoramic exposure (see Figures 5 to 7) . 15
7.1.5 Single-wall penetration of curved objects with the source located off-
centre and inside the object (see Figures 8 to 10) . 16
7.1.6 Double-wall penetration and double-image evaluation (DWDI) of pipes
with the elliptic technique and the source and the detector outside the
object (see Figure 11) . 17
7.1.7 Double-wall penetration and double-image evaluation (DWDI) with the
perpendicular technique and source and detector outside the object (see
Figure 12) . 17
7.1.8 D ouble-wall penetration and single-image evaluation (DWSI) of curved
objects for evaluation of the wall next to the detector (see Figures 13 to 16). 18
7.1.9 P enetration of objects with different material thicknesses (see Figure 17
to 19) . 19
7.2 C hoice of tube voltage and radiation source . 20
7.2.1 X -ray devices up to 1 000 kV . 20
7.2.2 O ther radiation sources . 21
7.3 D etector systems and metal screens . 22
7.3.1
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