Non-destructive testing - Qualification and certification of NDT personnel (ISO 9712:2021)

This document specifies requirements for the qualification and certification of personnel who perform industrial non-destructive testing (NDT) in the following methods.
a) acoustic emission testing;
b) eddy current testing;
c) leak testing (hydraulic pressure tests excluded);
d) magnetic testing;
e) penetrant testing;
f) radiographic testing;
g) strain gauge testing;
h) thermographic testing;
i) ultrasonic testing;
j) visual testing (direct unaided visual tests and visual tests carried out during the application of another NDT method are excluded).
The system specified in this document is also applicable to other NDT methods or to NDT techniques within an established NDT method, provided a comprehensive scheme of certification exists and the NDT method or NDT technique is covered by international, regional or national standards or the NDT method or the NDT technique has been demonstrated to be effective to the satisfaction of the certification body.
NOTE 1    The term "industrial" implies the exclusion of applications in the field of medicine.
NOTE 2    CEN/TR 14748 provides guidance on the methodology for qualification of non-destructive tests.
NOTE 3    This document specifies requirements for what are, in effect, third party conformity assessment schemes. These requirements do not directly apply to conformity assessment by second or first parties, but relevant parts of this document can be referred to in such arrangements.
NOTE 4    The term “direct unaided visual testing” implies where there is an uninterrupted optical path from the observer’s eye to the test area and the observer uses no tools or devices (e.g. mirror, endoscope, fibre optic).
NOTE 5    Calculations of strain based on other NDT methods are excluded.

Zerstörungsfreie Prüfung - Qualifizierung und Zertifizierung von Personal der zerstörungsfreien Prüfung (ISO 9712:2021)

Dieses Dokument legt Anforderungen an die Qualifizierung und Zertifizierung von Personal fest, welches industrielle zerstörungsfreie Prüfungen (ZfP) in den folgenden Verfahren ausführt:
a)   Schallemissionsprüfung;
b)   Wirbelstromprüfung;
c)   Dichtheitsprüfung (ausgenommen Wasserdruckprüfung);
d)   Magnetische Prüfung;
e)   Eindringprüfung;
f)   Durchstrahlungsprüfung;
g)   Dehnungsmessstreifenprüfung;
h)   Thermografieprüfung;
i)   Ultraschallprüfung;
j)   Sichtprüfung (ausgenommen direkte Sichtprüfungen ohne Hilfsmittel und Sichtprüfungen, die während der Anwendung eines anderen ZfP-Verfahrens durchgeführt werden).
Das in diesem Dokument festgelegte System ist auch auf andere ZfP-Verfahren oder ZfP-Techniken innerhalb eines bestehenden ZfP-Verfahrens anwendbar, wenn ein umfassendes Zertifizierungsprogramm existiert und das ZfP-Verfahren oder die ZfP-Technik durch internationale, regionale oder nationale Normen abgedeckt ist oder die Wirksamkeit des ZfP-Verfahrens oder der ZfP-Technik zur Zufriedenheit der Zertifizierungsstelle nachgewiesen wurde.
ANMERKUNG 1   Der Begriff „industriell“ bedeutet den Ausschluss von Anwendungen auf dem Gebiet der Medizin.
ANMERKUNG 2   CEN/TR 14748 bietet Anleitung zur Vorgehensweise zur Qualifizierung von zerstörungsfreien Prüfungen.
ANMERKUNG 3   Dieses Dokument legt praktisch die Anforderungen an Konformitätsbewertungssysteme von unabhängigen Prüfstellen fest. Diese Anforderungen gelten nicht unmittelbar für die Konformitätsbewertung durch Lieferanten oder interne Stellen, aber auf zutreffende Abschnitte dieses Dokuments kann in solchen Begutachtungen verwiesen werden.
ANMERKUNG 4   Der Begriff „direkte Sichtprüfung ohne Hilfsmittel“ bedeutet, dass der Strahlengang vom Auge des Betrachters zum Prüfbereich nicht unterbrochen ist und der Betrachter keine Werkzeuge oder Geräte (z. B. Spiegel, Endoskop, Faseroptik) verwendet.
ANMERKUNG 5   Dehnungsberechnungen auf der Grundlage anderer ZfP-Verfahren sind ausgeschlossen.

Essais non destructifs - Qualification et certification du personnel END (ISO 9712:2021)

Le présent document spécifie des exigences de qualification et de certification du personnel chargé d’effectuer des essais non destructifs (END) industriels dans les méthodes suivantes:
a) contrôle par émission acoustique;
b) contrôle par courants de Foucault;
c) contrôle d’étanchéité (les essais de pression hydrauliques étant exclus);
d) contrôles magnétiques (contrôle par magnétoscopie et par flux de fuite);
e) contrôle par ressuage;
f) contrôle par radiographie;
g) contrôle des contraintes par jauge;
h) contrôle par thermographie;
i) contrôle par ultrasons;
j) contrôle visuel (à l’exclusion des contrôles visuels directs à l’œil nu et des contrôles visuels effectués dans l’application d’une autre méthode d’END).
Le système spécifié dans le présent document peut également s’appliquer à d’autres méthodes ou techniques d’END employées dans une méthode d’END établie, à condition qu’un programme de certification complet existe et que la méthode ou technique d’END soit couverte par des normes internationales, régionales ou nationales, ou que la méthode ou technique d’END ait démontré son efficacité de façon satisfaisante aux yeux de l’organisme de certification.
NOTE 1        Le terme «industriel» implique l’exclusion d’applications dans le domaine médical.
NOTE 2        Le CEN/TR 14748 fournit des recommandations relatives à la méthodologie de qualification des essais non destructifs.
NOTE 3        Le présent document spécifie des exigences pour des systèmes qui, en pratique, sont des systèmes d’évaluation de la conformité par tierce partie. Ces exigences ne s’appliquent pas directement à l’évaluation de la conformité par première ou seconde partie, mais des parties appropriées du présent document peuvent être utilisées comme référence dans de tels cas.
NOTE 4        Le terme «contrôle visuel direct à l’œil nu» implique qu’il y a un chemin optique ininterrompu entre l’œil de l’observateur et la zone d’essai et que l’observateur n’utilise ni outil ni dispositif (par exemple, miroir, endoscope, fibre optique).
NOTE 5        Les calculs de contrainte basés sur d’autres méthodes d’END sont exclus.

Neporušitvene preiskave - Kvalificiranje in certificiranje osebja za neporušitvene preiskave (ISO 9712:2022)

Ta dokument določa zahteve za kvalifikacijo in certificiranje osebja, ki izvaja
industrijsko neporušitveno preskušanje (NDT) po naslednjih metodah.
a) preiskava z akustično emisijo;
b) preiskava z vrtinčnimi tokovi;
c) preskus tesnjenja (izključeni so hidravlični tlačni preskusi);
d) magnetno preskušanje;
e) preskušanje s penetranti;
f) radiografsko preskušanje;
g) preiskava z uporovnim merilnim lističem;
h) termografsko preskušanje;
i) ultrazvočna preiskava;
j) vizualna preiskava (izključene so vizualne preiskave brez pripomočkov in vizualne preiskave, izvedene med uporabo druge metode neporušitvenega preskušanja).
Sistem, določen v tem dokumentu, se uporablja tudi za druge metode in tehnike neporušitvenega preskušanja
v okviru uveljavljene metode neporušitvenega preskušanja, pod pogojem, da obstaja celovita shema certificiranja in
je metoda ali tehnika neporušitvenega preskušanja zajeta v mednarodnih, regionalnih ali nacionalnih standardih ali
da metoda ali tehnika neporušitvenega preskušanja izpolnjuje zahteve
certifikacijskega organa.
OPOMBA 1: Izraz »industrijski« pomeni, da je izključena raba na medicinskem področju.
OPOMBA 2: CEN/TR 14748 zagotavlja smernice za metodologijo za kvalifikacijo neporušitvenih preskusov.
OPOMBA 3: Ta dokument določa zahteve za sheme za ugotavljanje skladnosti, ki ga izvajajo tretje osebe. Te zahteve se ne uporabljajo neposredno za ugotavljanje skladnosti, ki ga izvajajo druge ali prve osebe, vendar pa se je mogoče v takih dogovorih sklicevati na ustrezne dele tega dokumenta.
OPOMBA 4: Izraz »vizualna preiskava brez pripomočkov« pomeni, da obstaja neprekinjena optična pot od opazovalčevega očesa do preskusnega območja in opazovalec ne uporablja orodij ali naprav (npr. ogledala, endoskopa, optičnih vlaken).
OPOMBA 5: Izračuni obremenitve na podlagi drugih metod neporušitvenega preskušanja so izključeni.

General Information

Status
Published
Publication Date
22-Mar-2022
Withdrawal Date
29-Sep-2022
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Start Date
23-Mar-2022
Completion Date
23-Mar-2022

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SLOVENSKI STANDARD
SIST EN ISO 9712:2022
01-junij-2022
Nadomešča:
SIST EN ISO 9712:2012
Neporušitvene preiskave - Kvalificiranje in certificiranje osebja za neporušitvene
preiskave (ISO 9712:2022)
Non-destructive testing - Qualification and certification of NDT personnel (ISO
9712:2022)
Zerstörungsfreie Prüfung - Qualifizierung und Zertifizierung von Personal der
zerstörungsfreien Prüfung (ISO 9712:2022)
Essais non destructifs - Qualification et certification du personnel END (ISO 9712:2022)
Ta slovenski standard je istoveten z: EN ISO 9712:2022
ICS:
03.100.30 Vodenje ljudi Management of human
resources
19.100 Neporušitveno preskušanje Non-destructive testing
SIST EN ISO 9712:2022 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 9712:2022

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SIST EN ISO 9712:2022


EN ISO 9712
EUROPEAN STANDARD

NORME EUROPÉENNE

March 2022
EUROPÄISCHE NORM
ICS 03.100.30; 19.100 Supersedes EN ISO 9712:2012
English Version

Non-destructive testing - Qualification and certification of
NDT personnel (ISO 9712:2021)
Essais non destructifs - Qualification et certification du Zerstörungsfreie Prüfung - Qualifizierung und
personnel END (ISO 9712:2021) Zertifizierung von Personal der zerstörungsfreien
Prüfung (ISO 9712:2021)
This European Standard was approved by CEN on 16 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
© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 9712:2022 E
worldwide for CEN national Members.

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SIST EN ISO 9712:2022
EN ISO 9712:2022 (E)
Contents Page
European foreword . 3
Annex ZA (informative) Relationship between this European Standard and the Essential
Requirements of EU Directive 2014/68/EU aimed to be covered. 4

2

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SIST EN ISO 9712:2022
EN ISO 9712:2022 (E)
European foreword
This document (EN ISO 9712:2022) has been prepared by Technical Committee ISO/TC 135 "Non-
destructive testing" in collaboration with Technical Committee CEN/TC 138 “Non-destructive testing”
the secretariat of which is held by AFNOR.
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 2022, and conflicting national standards
shall be withdrawn at the latest by September 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 9712:2012.
This document has been prepared under a Standardization Request given to CEN by the European
Commission and the European Free Trade Association, and supports essential requirements of EU
Directive(s) / Regulation(s).
For the relationship with EU Directive(s) / Regulation(s), see informative Annex ZA, which is an integral
part of this document.
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 9712:2021 has been approved by CEN as EN ISO 9712:2022 without any modification.

3

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SIST EN ISO 9712:2022
EN ISO 9712:2022 (E)
Annex ZA
(informative)

Relationship between this European Standard and the Essential
Requirements of EU Directive 2014/68/EU aimed to be covered
This European Standard has been prepared under a Commission’s standardization request M/071
“Mandate to CEN for standardization in the field of Pressure equipment” to provide one voluntary
means of conforming to essential requirements of Directive 2014/68/EU OF THE EUROPEAN
PARLIAMENT AND OF THE COUNCIL of 15 May 2014 on the harmonization of the laws of the Member
States relating to the making available on the market pressure equipment.
Once this standard is cited in the Official Journal of the European Union under that Directive,
compliance with the normative clauses of this standard given in Table ZA.1 confers, within the limits of
the scope of this standard, a presumption of conformity with the corresponding Essential Requirements
of that Directive and associated EFTA regulations.
Table ZA.1 — Correspondence between this European Standard and Annex I of Directive
2014/68/EU
Essential Safety Clauses/sub- clauses of this EN Remarks/Notes
Requirements (ERs) of
Directive 2014/68/EU
3.1.3 5, 6, 7, 8, 9, 10 (C2 excepted) and 11 Non-destructive testing of permanent
joints. For pressure equipment in the
categories III and IV the certification body
is a recognised third party organisation.
WARNING 1 — Presumption of conformity stays valid only as long as a reference to this European
Standard is maintained in the list published in the Official Journal of the European Union. Users of this
standard should consult frequently the latest list published in the Official Journal of the European
Union.
WARNING 2 — Other Union legislation may be applicable to the product(s) falling within the scope of
this standard.

4

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SIST EN ISO 9712:2022
INTERNATIONAL ISO
STANDARD 9712
Fifth edition
2021-12
Non-destructive testing —
Qualification and certification of NDT
personnel
Essais non destructifs — Qualification et certification du personnel
END
Reference number
ISO 9712:2021(E)
© ISO 2021

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SIST EN ISO 9712:2022
ISO 9712:2021(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

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SIST EN ISO 9712:2022
ISO 9712:2021(E)
Contents Page
Foreword .v
Introduction .vii
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Abbreviated terms . 6
5 Responsibilities . .6
5.1 General . 6
5.2 Certification body . 6
5.3 Authorized qualification body . 8
5.4 Examination centre . 8
5.5 Employer . 8
5.6 Candidate . 9
5.7 Certificate holders . 9
5.8 Examiners . 10
5.9 Referee . 10
6 Levels of certification .10
6.1 Level 1 . 10
6.2 Level 2 . 10
6.3 Level 3 . 11
7 Eligibility .11
7.1 General . 11
7.2 Training . 11
7.3 Industrial NDT experience.13
7.3.1 General .13
7.3.2 Level 3 . 13
7.3.3 Possible reductions . 14
7.4 Vision requirements — all levels . 14
7.4.1 General . 14
7.4.2 Near vision acuity . 14
7.4.3 Colour vision . 14
7.4.4 Personnel administering vision tests . 15
8 Examinations .15
8.1 Overview . 15
8.1.1 General .15
8.1.2 Examination elements . 15
8.1.3 Examination time . 16
8.1.4 Examination aids . 16
8.2 Examination content and grading for Level 1 and Level 2 . 16
8.2.1 General examination element . 16
8.2.2 Specific examination element . 16
8.2.3 Practical examination element . 16
8.2.4 NDT instruction writing examination element . 17
8.2.5 Grading of the Level 1 and Level 2 examination . 17
8.3 Examination content and grading for Level 3. 18
8.3.1 General . 18
8.3.2 Basic examination element . 18
8.3.3 Main method examination element . 19
8.3.4 Grading of Level 3 examinations . 19
8.4 Conduct of examinations .20
8.5 Re-examination . 20
iii
© ISO 2021 – All rights reserved

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SIST EN ISO 9712:2022
ISO 9712:2021(E)
8.6 Supplementary examinations . 21
9 Certification .21
9.1 Administration . 21
9.2 Certificates . 21
9.3 Conditions of certification .22
9.3.1 General .22
9.3.2 Granting. 22
9.3.3 Scope extension . 22
9.3.4 Suspension of certification . 22
9.3.5 Withdrawal of certification . 22
9.3.6 Certification after withdrawal. 23
9.3.7 Waiting period prior to certification after withdrawal .23
9.4 Certificates issued by other certification bodies . 23
10 Renewal .23
11 Recertification.24
11.1 General . 24
11.2 Levels 1 and 2 . 25
11.3 Level 3 . 25
12 Files .26
13 Transition period .27
Annex A (normative) Sectors .28
Annex B (normative) Minimum number and type of specimens for the Level 1 and Level 2
practical examination element . .30
Annex C (normative) Structured credit system for renewal Level 1, 2 and 3 and for Level 3
recertification .31
Annex D (normative) Grading practical examination elements .35
Annex E (informative) Engineering of NDT .37
Annex F (informative) Training requirements for techniques .38
Annex G (informative) Psychometric principles .41
Bibliography .42
iv
  © ISO 2021 – All rights reserved

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SIST EN ISO 9712:2022
ISO 9712:2021(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 135, Non-destructive testing,
Subcommittee SC 7, Personnel qualification, in collaboration with the European Committee for
Standardization (CEN) Technical Committee CEN/TC 138, Non-destructive testing, in accordance with
the Agreement on technical cooperation between ISO and CEN (Vienna Agreement).
This fifth edition cancels and replaces the fourth edition (ISO 9712:2012), which has been technically
revised.
The main changes compared to the previous edition are as follows:
— clarified responsibilities for the certification body, the authorized qualification body, the examination
centre and the employer;
— added and revised definitions;
— defined responsibilities for examiners and referees;
— revised requirements for the duration of training and industrial experience;
— modified requirements for visual acuity testing;
— revised requirements for examinations;
— included an option for the use of a psychometric process at the discretion of the certification body;
— revised requirements for the certification documents;
— revised requirements for the conditions of certification;
— added requirements for candidates for the renewal of certificates;
— revised structured credit system for Level 3 recertification;
— included a new Annex F for techniques;
v
© ISO 2021 – All rights reserved

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SIST EN ISO 9712:2022
ISO 9712:2021(E)
— included a new Annex G for psychometric principles;
— other minor technical and editorial changes.
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.
vi
  © ISO 2021 – All rights reserved

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SIST EN ISO 9712:2022
ISO 9712:2021(E)
Introduction
Since the effectiveness of any application of non-destructive testing (NDT) depends upon the
capabilities of the persons who perform or are responsible for the test, a procedure has been developed
to provide a means of evaluating and documenting the competence of personnel whose duties require
the appropriate theoretical and practical knowledge of the non-destructive tests they perform, specify,
supervise, monitor or evaluate. An added incentive stems from the worldwide comparability of a wide
range of industrial applications requiring common non-destructive testing approaches.
When certification of NDT personnel is required in product standards, regulations, codes or
specifications, it is important to certify the personnel in accordance with this document. When
latitude is provided in the criteria within this document, the certification body has the final decision in
determining specific requirements.
When there is no requirement in legislation, in standard or in the order for certification of NDT
personnel, it is for employers of such personnel to decide how to assure themselves that they are
competent to do the work assignments. Thus, they may employ people who are already certified or
they may apply their own expertise so as to assure themselves that their employee has the necessary
competence. In this last case, prudent employers would no doubt use this document as a reference
document.
vii
© ISO 2021 – All rights reserved

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SIST EN ISO 9712:2022

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SIST EN ISO 9712:2022
INTERNATIONAL STANDARD ISO 9712:2021(E)
Non-destructive testing — Qualification and certification of
NDT personnel
1 Scope
This document specifies requirements for the qualification and certification of personnel who perform
indu
...

SLOVENSKI STANDARD
oSIST prEN ISO 9712:2021
01-marec-2021
Neporušitvene preiskave - Kvalificiranje in certificiranje osebja za neporušitvene
preiskave (ISO/DIS 9712:2021)
Non-destructive testing - Qualification and certification of NDT personnel (ISO/DIS
9712:2021)
Zerstörungsfreie Prüfung - Qualifizierung und Zertifizierung von Personal der
zerstörungsfreien Prüfung (ISO/DIS 9712:2021)
Essais non destructifs - Qualification et certification du personnel END (ISO/DIS
9712:2021)
Ta slovenski standard je istoveten z: prEN ISO 9712
ICS:
03.100.30 Vodenje ljudi Management of human
resources
19.100 Neporušitveno preskušanje Non-destructive testing
oSIST prEN ISO 9712:2021 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN ISO 9712:2021

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oSIST prEN ISO 9712:2021
DRAFT INTERNATIONAL STANDARD
ISO/DIS 9712
ISO/TC 135/SC 7 Secretariat: SCC
Voting begins on: Voting terminates on:
2021-01-11 2021-04-05
Non-destructive testing — Qualification and certification of
NDT personnel
Essais non destructifs — Qualification et certification du personnel END
ICS: 03.100.30; 19.100
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 9712:2021(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

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oSIST prEN ISO 9712:2021
ISO/DIS 9712:2021(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
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Email: copyright@iso.org
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oSIST prEN ISO 9712:2021
ISO/DIS 9712:2021(E)

Contents Page
Foreword .v
Introduction .vii
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Methods and abbreviated terms . 6
5 Responsibilities . 6
5.1 General . 6
5.2 Certification bod y . 6
5.3 Authorized qualification body . 7
5.4 Examination centre . 8
5.5 Employer . 8
5.6 Candidate . 9
5.7 Certificat e holders . 9
5.8 Examiners . 9
5.9 Referee .10
6 Levels of certification.10
6.1 Level 1 .10
6.2 Level 2 .10
6.3 Level 3 .11
7 Eligibility.11
7.1 General .11
7.2 Training .11
7.3 Industrial NDT experience .13
7.3.1 General.13
7.3.2 Level 3 .13
7.3.3 Possible reductions .13
7.4 Vision requirements — all levels .14
7.4.1 General.14
7.4.2 Near vision acuity .14
7.4.3 Colour vision .14
7.4.4 Personnel administering vision tests .14
8 Examinations .14
8.1 Overview .14
8.1.1 General.14
8.1.2 Examination elements.15
8.1.3 Examination time .15
8.1.4 Examination material .16
8.2 Examination content and grading for Level 1 and Level 2 .16
8.2.1 General examination element .16
8.2.2 Specific examination element .16
8.2.3 Practical examination element .16
8.2.4 NDT instruction writing examination element.17
8.2.5 Grading of the Level 1 and Level 2 examination .17
8.3 Examination content and grading for Level 3 .18
8.3.1 General.18
8.3.2 Basic examination element .18
8.3.3 Grading of Level 3 examinations .19
8.4 Conduct of examinations .20
8.5 Re-examination .20
8.6 Supplementary examinations .20
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oSIST prEN ISO 9712:2021
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9 C ertification .21
9.1 Administration .21
9.2 Certificat es .21
9.3 Conditions of certification .21
9.3.1 General.21
9.3.2 Granting .21
9.3.3 Scope extension .21
9.3.4 Suspension of certification .22
9.3.5 Withdrawal of certification .22
9.3.6 Certification after withdrawal .22
9.3.7 Waiting period prior to certification after withdrawal .22
9.4 Certificat es issued by other certification bodies .22
10 Renewal .23
11 Recertification .24
11.1 General .24
11.2 Level 1 and 2 .24
11.3 Level 3 .24
12 Files .26
13 Transition period .26
Annex A (normative) Sectors .27
Annex B (normative) Minimum number and type of specimens for the Level 1 and Level 2
practical examination element .29
Annex C (normative) Structured credit system for renewal Level 1, 2 and 3 and for Level 3
recertification .30
Annex D (normative) Grading practical examination element .34
Annex E (informative) Engineering of NDT .36
Annex F (informative) Requirements for techniques .37
Annex G (informative) Psychometric principles .39
Annex ZA Relationship between this European Standard and the EssentialRequirements of
EU Directive 2014/68/EU aimed to be covered.40
Bibliography .41
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oSIST prEN ISO 9712:2021
ISO/DIS 9712:2021(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.
ISO 9712 was prepared by Technical Committee ISO/TC 135, Non-destructive testing, Subcommittee
SC 7, Personnel qualification.
This fifth edition cancels and replaces the fourth edition (ISO 9712:2012), which has been technically
revised.
The main changes compared to the previous edition are as follows:
— clarification of responsibilities for the certification body, the authorized qualification body, the
examination centre and the employer;
— additions and revisions to definitions;
— defined responsibilities for examiners and referees
— revised requirements for the duration of training and industrial experience;
— modified requirements for visual acuity testing;
— revised requirements for examinations;
— included an option for the use of a psychometric process at the discretion of the certification body;
— revised the requirements for the certification documents;
— revised requirements for the conditions of certification;
— additional requirements for candidates for the renewal of certificates;
— revised structured credit system for Level 3 recertification;
— includes new Annex F for techniques;
— includes new Annex G for psychometric principles;
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oSIST prEN ISO 9712:2021
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— other minor technical and editorial changes.
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.
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oSIST prEN ISO 9712:2021
ISO/DIS 9712:2021(E)

Introduction
Since the effectiveness of any application of non-destructive testing (NDT) depends upon the
capabilities of the persons who perform or are responsible for the test, a procedure has been developed
to provide a means of evaluating and documenting the competence of personnel whose duties require
the appropriate theoretical and practical knowledge of the non-destructive tests they perform, specify,
supervise, monitor or evaluate. An added incentive stems from the worldwide comparability of a wide
range of industrial applications requiring common non-destructive testing approaches.
When certification of NDT personnel is required in product standards, regulations, codes or
specifications, it is important to certify the personnel in accordance with this document. When
latitude is provided in the criteria within this document, the certification body has the final decision in
determining specific requirements.
When there is no requirement in legislation, in standard or in the order for certification of NDT
personnel, it is for employers of such personnel to decide how to assure themselves that they are
competent to do the work assignments. Thus, they may employ people who are already certified or
they may apply their own expertise so as to assure themselves that their employee has the necessary
competence. In this last case, prudent employers would no doubt use this document as a reference
document.
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oSIST prEN ISO 9712:2021

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oSIST prEN ISO 9712:2021
DRAFT INTERNATIONAL STANDARD ISO/DIS 9712:2021(E)
Non-destructive testing — Qualification and certification of
NDT personnel
1 Scope
This document specifies requirements for the qualification and certification of personnel who perform
industrial non-destructive testing (NDT) in the following methods.
a) acoustic emission testing;
b) eddy current testing;
c) thermographic testing;
d) leak testing (hydraulic pressure tests excluded);
e) magnetic testing;
f) penetrant testing;
g) radiographic testing;
h) strain gauge testing;
i) ultrasonic testing;
j) visual testing (direct unaided visual tests and visual tests carried out during the application of
another NDT method are excluded).
The system specified in this document is also applicable to other NDT methods or to NDT techniques
within an established NDT method, provided a comprehensive scheme of certification exists and the NDT
method or NDT technique is covered by International, regional or national standards or the NDT method
or NDT technique has been demonstrated to be effective to the satisfaction of the certification body.
NOTE 1 The term "industrial" implies the exclusion of applications in the field of medicine.
NOTE 2 CEN/TR 14748 provides guidance for methodology for qualification of NDT systems.
NOTE 3 This document specifies requirements for what are, in effect, third party conformity assessment
schemes. These requirements do not directly apply to conformity assessment by second or first parties, but
relevant parts of this document can be referred to in such arrangements.
NOTE 4 The term “direct unaided visual testing” implies where there is an uninterrupted optical path from
the observer’s eye to the test area and the observer uses no tools or devices (e.g. mirror, lens, endoscope, fibre
optic, etc…).
NOTE 5 Calculations of strain based on other NDT methods are excluded.
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/IEC 17024, Conformity assessment — General requirements for bodies operating certification of persons
ISO 18490, Non-destructive testing — Evaluation of vision acuity of NDT personnel
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oSIST prEN ISO 9712:2021
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3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
applicant
person who has submitted an application to be admitted into the certification process
3.2
authorized qualification body
body, independent of the employer, authorized by the certification body to prepare and administer
examinations
3.3
basic examination element
written examination, at Level 3, which demonstrates the candidate’s knowledge of the materials science
and process technology and types of discontinuities, the specific qualification and certification system,
and the basic principles of NDT methods as required for Level 2
Note 1 to entry: Note1 to entry: For an explanation of the three levels of qualification, see Clause 6.
Note 2 to entry: The qualification and certification system is specified in this document.
3.4
candidate
applicant who has fulfilled specified prerequisites and has been admitted to the certification process
3.5
certificate
a document in the form of a letter, card or other medium (e.g. digital certificate), issued by a certification
body under the provisions of this document, indicating that the named person has fulfilled the
certification requirements
3.6
certification body
body that administers procedures for certification according to specified requirements
3.7
certification cycle
the maximum period of time permitted from the date of certification to the date of recertification
inclusive of the renewal period
3.8
certification process
activities by which a certification body determines that a person fulfils certification requirements,
including application, assessment, decision on certification, renewal, recertification and use of
certificates and logos/marks
3.9
certification requirements
set of specified requirements, including requirements of the scheme to be fulfilled in order to establish
or maintain certification
3.10
competence
ability to apply knowledge and skills to achieve intended results
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3.11
employer
legal entity by whom the candidate is employed
Note 1 to entry: a candidate may be self-employed
3.12
examination
mechanism that is part of the assessment which measures a candidate's competence by one or more means
3.13
examination centre
centre approved by the certification body where examinations are carried out
3.14
examination elements
a component of an examination
3.15
examiner
person competent to conduct and score an examination, where the examination requires professional
judgement
3.16
general examination element
written examination, at Level 1 or Level 2, concerned with the principles of an NDT method
3.17
higher education
formal learning that occurs after completion of secondary education in the field of engineering or science
3.18
industrial experience
work activities performed under supervision, in the NDT method in the sector concerned, needed to
acquire the skill and knowledge to fulfil the provisions of qualification
3.19
invigilator
person authorized by the certification body who supervises an examination, but does not evaluate the
competence of the candidate
Note 1 to entry: Other terms for invigilator are proctor, test administrator.
3.20
job-specific training
training, provided by the employer (or their agent) to the certificate holder
...

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