SIST EN ISO 10675-1:2022
(Main)Non-destructive testing of welds - Acceptance levels for radiographic testing - Part 1: Steel, nickel, titanium and their alloys (ISO 10675-1:2021)
Non-destructive testing of welds - Acceptance levels for radiographic testing - Part 1: Steel, nickel, titanium and their alloys (ISO 10675-1:2021)
This document specifies acceptance levels for indications from imperfections in butt welds of steel,
nickel, titanium and their alloys detected by radiographic testing. If agreed, the acceptance levels can
be applied to other types of welds (such as fillet welds, etc.) or materials.
The acceptance levels can be related to welding standards, application standards, specifications or
codes. This document assumes that the radiographic testing has been carried out in accordance with
ISO 17636-1 for RT-F (F = film) or ISO 17636-2 for RT-S (S = radioscopy) and RT-D (D = digital detectors)
Zerstörungsfreie Prüfung von Schweißverbindungen - Zulässigkeitsgrenzen für die Durchstrahlungsprüfung - Teil 1: Stahl, Nickel, Titan und deren Legierungen (ISO 10675-1:2021)
Dieses Dokument legt für die Durchstrahlungsprüfung die Zulässigkeitsgrenzen für Anzeigen von Unregelmäßigkeiten von Stumpfschweißnähten in Stahl, Nickel, Titan und deren Legierungen fest. Falls vereinbart, können die Zulässigkeitsgrenzen auf andere Arten von Schweißnähten (z. B. Kehlnähte usw.) oder andere Werkstoffe angewendet werden.
Die Zulässigkeitsgrenzen können sich auf Schweißnormen, Anwendungsnormen, Spezifikationen oder Codes beziehen. Dieses Dokument geht davon aus, dass die Durchstrahlungsprüfung für RT F (F = mit Filmen) nach ISO 17636 1 oder für RT S (S = Radioskopie) und RT D (D = mit digitalen Detektoren) nach ISO 17636 2 durchgeführt wurde.
Essais non destructifs des assemblages soudés - Niveaux d'acceptation pour évaluation par radiographie - Partie 1: Acier, nickel, titane et leurs alliages (ISO 10675-1:2021)
Le présent document spécifie les niveaux d'acceptation des indications des défauts présents dans les assemblages soudés bout à bout en acier, nickel, titane et leurs alliages détectés par contrôle radiographique. En fonction des accords passés, les niveaux d'acceptation peuvent être appliqués à d'autres types d'assemblages soudés (tels que les soudures d’angle, etc.) ou matériaux.
Les niveaux d'acceptation peuvent être reliés à des normes de soudage, des normes d'application, des spécifications ou des codes. Le présent document présume que le contrôle par radiographie a été exécuté conformément à l'ISO 17636‑1 pour les essais par radiographie en utilisant des films (RT-F) ou à l’ISO 17636‑2 pour les essais de radioscopie (RT-S) et les essais par radiographie numérique (RT-D).
Neporušitveno preskušanje zvarnih spojev - Stopnje sprejemljivosti pri radiografskem preskušanju - 1. del: Jeklo, nikelj, titan in njihove zlitine (ISO 10675-1:2021)
Ta dokument določa stopnje sprejemljivosti za označevanje na podlagi nepravilnosti v soležnih zvarih jekla, niklja, titana in njihovih zlitin, ki se zaznajo z radiografskim preskušanjem. V primeru dogovora je mogoče stopnje sprejemljivosti uporabiti za druge vrste zvarov (npr. kotne zvare itd.) ali materialov.
Stopnje sprejemljivosti se lahko navezujejo na standarde varjenja, standarde uporabe, specifikacije ali oznake. V tem dokumentu je predpostavljeno, da je bilo radiografsko preskušanje izvedeno skladno s standardom ISO 17636-1 za RT-F (F = film) ali ISO 17636-2 za RT-S (S = radioskopija) in RT-D (D = digitalni detektorji).
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN ISO 10675-1:2022
01-marec-2022
Nadomešča:
SIST EN ISO 10675-1:2017
Neporušitveno preskušanje zvarnih spojev - Stopnje sprejemljivosti pri
radiografskem preskušanju - 1. del: Jeklo, nikelj, titan in njihove zlitine (ISO 10675-
1:2021)
Non-destructive testing of welds - Acceptance levels for radiographic testing - Part 1:
Steel, nickel, titanium and their alloys (ISO 10675-1:2021)
Zerstörungsfreie Prüfung von Schweißverbindungen - Zulässigkeitsgrenzen für die
Durchstrahlungsprüfung - Teil 1: Stahl, Nickel, Titan und deren Legierungen (ISO 10675-
1:2021)
Essais non destructifs des assemblages soudés - Niveaux d'acceptation pour évaluation
par radiographie - Partie 1: Acier, nickel, titane et leurs alliages (ISO 10675-1:2021)
Ta slovenski standard je istoveten z: EN ISO 10675-1:2021
ICS:
25.160.40 Varjeni spoji in vari Welded joints and welds
SIST EN ISO 10675-1:2022 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN ISO 10675-1:2022
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SIST EN ISO 10675-1:2022
EN ISO 10675-1
EUROPEAN STANDARD
NORME EUROPÉENNE
December 2021
EUROPÄISCHE NORM
ICS 25.160.40 Supersedes EN ISO 10675-1:2016
English Version
Non-destructive testing of welds - Acceptance levels for
radiographic testing - Part 1: Steel, nickel, titanium and
their alloys (ISO 10675-1:2021)
Essais non destructifs des assemblages soudés - Zerstörungsfreie Prüfung von Schweißverbindungen -
Niveaux d'acceptation pour évaluation par Zulässigkeitsgrenzen für die Durchstrahlungsprüfung -
radiographie - Partie 1: Acier, nickel, titane et leurs Teil 1: Stahl, Nickel, Titan und deren Legierungen (ISO
alliages (ISO 10675-1:2021) 10675-1:2021)
This European Standard was approved by CEN on 5 December 2021.
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 ISO 10675-1:2021 E
worldwide for CEN national Members.
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SIST EN ISO 10675-1:2022
EN ISO 10675-1:2021 (E)
Contents Page
European foreword . 3
2
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SIST EN ISO 10675-1:2022
EN ISO 10675-1:2021 (E)
European foreword
This document (EN ISO 10675-1:2021) 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 June 2022, and conflicting national standards shall be
withdrawn at the latest by June 2022.
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 10675-1:2016.
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, Turkey and the
United Kingdom.
Endorsement notice
The text of ISO 10675-1:2021 has been approved by CEN as EN ISO 10675-1:2021 without any
modification.
3
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SIST EN ISO 10675-1:2022
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SIST EN ISO 10675-1:2022
INTERNATIONAL ISO
STANDARD 10675-1
Third edition
2021-12
Non-destructive testing of welds —
Acceptance levels for radiographic
testing —
Part 1:
Steel, nickel, titanium and their alloys
Essais non destructifs des assemblages soudés — Niveaux
d'acceptation pour évaluation par radiographie —
Partie 1: Acier, nickel, titane et leurs alliages
Reference number
ISO 10675-1:2021(E)
© ISO 2021
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SIST EN ISO 10675-1:2022
ISO 10675-1:2021(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2021
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
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii
© ISO 2021 – All rights reserved
---------------------- Page: 8 ----------------------
SIST EN ISO 10675-1:2022
ISO 10675-1:2021(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols and abbreviations .1
5 Radiographic technique . 2
6 General . 2
7 Acceptance levels.3
Annex A (informative) Guidance to the limitations of radiographic testing .6
Annex B (informative) Examples for determination of area percentage (%) of imperfections .7
Annex C (informative) Calculation of the sum of acceptable areas . 9
Bibliography .14
iii
© ISO 2021 – All rights reserved
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SIST EN ISO 10675-1:2022
ISO 10675-1:2021(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, in collaboration with the European Committee for
Standardization (CEN) Technical Committee CEN/TC 121, Welding and allied processes, in accordance
with the Agreement on technical cooperation between ISO and CEN (Vienna Agreement).
This third edition cancels and replaces the second edition (ISO 10675-1:2016), which has been
technically revised.
The main changes compared to the previous edition are as follows:
— new Table 1 added with abbreviations;
— old Table 1 has been split into Table 2 and Table 3;
— in Table 4 (former Table 2), acceptance levels for maximum permissible pore sizes of porosity,
clustered porosity, linear porosity and for lack of fusion have been added;
— the acceptance levels in Clause 6 have been extended (General and tables);
— the captures of Figure B.1 to B.9 have been revised to conform with ISO 5817:2014;
— Figures C.1 and C.2 and the text have been revised to conform with ISO 5817:2014;
— the document has been editorially revised.
A list of all parts of the ISO 10675 series can be found on the ISO website.
Official interpretations of ISO/TC 44 documents, where they exist, are available from this page:
https://committee.iso.org/sites/tc44/home/interpretation.html.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.
iv
© ISO 2021 – All rights reserved
---------------------- Page: 10 ----------------------
SIST EN ISO 10675-1:2022
INTERNATIONAL STANDARD ISO 10675-1:2021(E)
Non-destructive testing of welds — Acceptance levels for
radiographic testing —
Part 1:
Steel, nickel, titanium and their alloys
1 Scope
This document specifies acceptance levels for indications from imperfections in butt welds of steel,
nickel, titanium and their alloys detected by radiographic testing. If agreed, the acceptance levels can
be applied to other types of welds (such as fillet welds, etc.) or materials.
The acceptance levels can be related to welding standards, application standards, specifications or
codes. This document assumes that the radiographic testing has been carried out in accordance with
ISO 17636-1 for RT-F (F = film) or ISO 17636-2 for RT-S (S = radioscopy) and RT-D (D = digital detectors).
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 5817, Welding — Fusion-welded joints in steel, nickel, titanium and their alloys (beam welding excluded)
— Quality levels for imperfections
ISO 6520-1, Welding and allied processes — Classification of geometric imperfections in metallic materials
— Part 1: Fusion welding
ISO 17636-1, Non-destructive testing of welds — Radiographic testing — Part 1: X- and gamma-ray
techniques with film
ISO 17636-2, Non-destructive testing of welds — Radiographic testing — Part 2: X- and gamma-ray
techniques with digital detectors
ISO 17637, Non-destructive testing of welds — Visual testing of fusion-welded joints
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 5817 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 https:// www .electropedia .org/
4 Symbols and abbreviations
For the purposes of this document, the symbols given in Table 1 apply
1
© ISO 2021 – All rights reserved
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SIST EN ISO 10675-1:2022
ISO 10675-1:2021(E)
Table 1 — Symbols
A is the sum of projected areas of indications related to each L × w in percentage (see Annex B)
p
b is the width of excess penetration of weld, in millimetres
D is the distance between indications
d is the diameter of pore, in millimetres
d is the diameter of area surrounding a group of gas holes (e.g. clustered porosity), in millimetres
A
h is the width of indication, the width or height of surface or cross surface imperfection, in millimetres
l is the length of indication, in millimetres (see also Figure C.3 and Figure C.4 for linear porosity)
L is any 100 mm testing length, in millimetres (equivalent to l in ISO 5817)
p
s is the nominal butt weld thickness, in millimetres (see also ISO 2553)
t is the material thickness, in millimetres
w is the width of the weld, in millimetres
p
is the summary length of imperfections within L (indications shall not be divided into different ranges
∑l
L)
5 Radiographic technique
Depending on the weld quality level, radiographic techniques class A or class B in accordance with
ISO 17636-1 shall be used for RT-F as shown in Table 2 and radiographic techniques class A or class B in
accordance with ISO 17636-2 shall be used for RT-S or RT-D as shown in Table 3.
Table 2 — Radiographic testing with film (RT-F)
Testing techniques and classes
Quality levels in accordance Acceptance levels in accordance
in accordance with ISO 17636-1
with ISO 5817 with this document
for RT-F
B B 1
a
C B 2
D A 3
a
However, the minimum number of exposures for
...
SLOVENSKI STANDARD
oSIST prEN ISO 10675-1:2021
01-marec-2021
Neporušitveno preskušanje zvarnih spojev - Stopnje sprejemljivosti pri
radiografskem preskušanju - 1. del: Jeklo, nikelj, titan in njihove zlitine (ISO/DIS
10675-1:2021)
Non-destructive testing of welds - Acceptance levels for radiographic testing - Part 1:
Steel, nickel, titanium and their alloys (ISO/DIS 10675-1:2021)
Zerstörungsfreie Prüfung von Schweißverbindungen - Zulässigkeitsgrenzen für die
Durchstrahlungsprüfung - Teil 1: Stahl, Nickel, Titan und deren Legierungen (ISO/DIS
10675-1:2021)
Essais non destructifs des assemblages soudés - Niveaux d'acceptation pour évaluation
par radiographie - Partie 1: Acier, nickel, titane et leurs alliages (ISO/DIS 10675-1:2021)
Ta slovenski standard je istoveten z: prEN ISO 10675-1
ICS:
25.160.40 Varjeni spoji in vari Welded joints and welds
oSIST prEN ISO 10675-1:2021 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
---------------------- Page: 1 ----------------------
oSIST prEN ISO 10675-1:2021
---------------------- Page: 2 ----------------------
oSIST prEN ISO 10675-1:2021
DRAFT INTERNATIONAL STANDARD
ISO/DIS 10675-1
ISO/TC 44/SC 5 Secretariat: AFNOR
Voting begins on: Voting terminates on:
2021-02-11 2021-05-06
Non-destructive testing of welds — Acceptance levels for
radiographic testing —
Part 1:
Steel, nickel, titanium and their alloys
Essais non destructifs des assemblages soudés — Niveaux d'acceptation pour évaluation par
radiographie —
Partie 1: Acier, nickel, titane et leurs alliages
ICS: 25.160.40
THIS DOCUMENT IS A DRAFT CIRCULATED
This document is circulated as received from the committee secretariat.
FOR COMMENT AND APPROVAL. IT IS
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS
ISO/CEN PARALLEL PROCESSING
BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
Reference number
NATIONAL REGULATIONS.
ISO/DIS 10675-1:2021(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
©
PROVIDE SUPPORTING DOCUMENTATION. ISO 2021
---------------------- Page: 3 ----------------------
oSIST prEN ISO 10675-1:2021
ISO/DIS 10675-1:2021(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2021
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
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2021 – All rights reserved
---------------------- Page: 4 ----------------------
oSIST prEN ISO 10675-1:2021
ISO/DIS 10675-1:2021(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Radiographic technique . 2
5 General . 2
6 Acceptance levels . 2
Annex A (informative) Guide to the limitations of radiographic testing . 6
Annex B (informative) Examples for determination of area percentage (%) of imperfections .7
Annex C (informative) Calculation of the sum of acceptable areas . 9
Bibliography .12
© ISO 2021 – All rights reserved iii
---------------------- Page: 5 ----------------------
oSIST prEN ISO 10675-1:2021
ISO/DIS 10675-1:2021(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.
This third edition cancels and replaces the second edition (ISO 10675-1:2016), which has been
technically revised.
The main changes compared to the previous edition are as follows:
— The document has been technically and editorial revised;
— Clause 4 Radiographic technique has been technically revised;
— Clause 5 General has been added;
— The acceptance levels in clause 6 have been extended;
— Table 1- Radiographic testing was split into Table 1- Radiographic testing for RT-F and Table 2 –
Radiographic testing for RT-S and RT-D;
— In Table 3 Acceptance levels for internal indications in butt welds No 3: acceptance levels for
maximum permissible pore sizes were added;
— In Annex B the capture of Figure B.1 was revised;
— in Annex C Figures C.1, C.2 and the text were revised to be conform to ISO 5817:2014.
A list of all parts of the ISO 10675 series can be found on the ISO website.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www .iso .org/ members .html.
Official interpretations of ISO/TC 44 documents, where they exist, are available from this page: https://
committee .iso .org/ sites/ tc44/ home/ interpretation .html.
iv © ISO 2021 – All rights reserved
---------------------- Page: 6 ----------------------
oSIST prEN ISO 10675-1:2021
DRAFT INTERNATIONAL STANDARD ISO/DIS 10675-1:2021(E)
Non-destructive testing of welds — Acceptance levels for
radiographic testing —
Part 1:
Steel, nickel, titanium and their alloys
1 Scope
This document specifies acceptance levels for indications from imperfections in butt welds of steel,
nickel, titanium and their alloys detected by radiographic testing. If agreed, the acceptance levels can
be applied to other types of welds (such as fillet welds etc.) or materials.
The acceptance levels can be related to welding standards, application standards, specifications or
codes. This document assumes that the radiographic testing has been carried out in accordance with
ISO 17636-1 for RT-F (F = film) or ISO 17636-2 for RT-S (S = radioscopy) and RT-D (D = digital detectors).
When assessing whether a weld meets the requirements specified for a weld quality level, the sizes of
imperfections permitted by standards are compared with the dimensions of indications revealed by a
radiograph made of the weld.
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 5817, Welding — Fusion-welded joints in steel, nickel, titanium and their alloys (beam welding
excluded) — Quality levels for imperfections
ISO 6520-1, Welding and allied processes — Classification of geometric imperfections in metallic
materials — Part 1: Fusion welding
ISO 17636-1, Non-destructive testing of welds — Radiographic testing — Part 1: X- and gamma-ray
techniques with film
ISO 17636-2, Non-destructive testing of welds — Radiographic testing — Part 2: X- and gamma-ray
techniques with digital detectors
ISO 17637, Non-destructive testing of welds — Visual testing of fusion-welded joints
ISO 2553, Welding and allied processes — Symbolic representation on drawings — Welded joints
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 5817 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/
© ISO 2021 – All rights reserved 1
---------------------- Page: 7 ----------------------
oSIST prEN ISO 10675-1:2021
ISO/DIS 10675-1:2021(E)
4 Radiographic technique
Depending on the weld quality level, radiographic technique A or B in accordance with ISO 17636-1 shall
be used for RT-F as shown in Table 1 and radiographic technique A or B in accordance with ISO 17636-2
shall be used for RT-S or RT-D as shown in Table 2.
Table 1 — Radiographic testing for RT-F
Testing techniques and classes
Quality levels in accordance Acceptance levels in accordance
in accordance with ISO 17636-1
with ISO 5817 with this document
a
for RT-F
B B 1
b
C B 2
D A 3
a
RT-F = Radiographic testing with film
b
However, the minimum number of exposure for circumferential weld testing may correspond to the requirements of
class A of ISO 17636-1.
Table 2 — Radiographic testing for RT-S and RT-D
Testing techniques and classes
Quality levels in accordance Acceptance levels in accordance
in accordance with ISO 17636-2
with ISO 5817 with this document
a b
for RT-S and RT-D
B B 1
c
C B 2
D A 3
a
RT-S = Radioscopic testing
b
RT-D = Radiographic testing with digital detectors
c
However, the minimum number of exposure for circumferential weld testing may correspond to the requirements of
class A of ISO 17636-2.
5 General
Welded joints should be visually tested in accordance with ISO 17637 and evaluated before radiographic
testing.
The acceptance levels of this document are basically valid for evaluation of imperfections which cannot
be detected and evaluated by visual testing (see Table 3). Surface imperfections (see Table 4; such as
undercut and excessive penetration, surface damage, weld spatter, etc.) which, due to object geometry,
cannot be evaluated by visual testing, but where the interpreter suspects that the ISO 5817 quality
levels are not fulfilled, shall be subject to more specific testing for quantification.
When quantification of undercut and/or excessive penetration by radiographic testing is required,
specific procedures using test exposures may be applied in order to establish a basis for approximate
quantif
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