ISO 16946:2024

Norme
internationale
ISO 16946
Troisième édition
Essais non destructifs — Contrôle
2024-06
par ultrasons — Spécifications
relatives au bloc étalon à gradins
Non-destructive testing — Ultrasonic testing — Specification for
a step wedge standard block
Numéro de référence
ISO 16946:2024(fr) © ISO 2024

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ISO 16946:2024(fr)
DOCUMENT PROTÉGÉ PAR COPYRIGHT
© ISO 2024
Tous droits réservés. Sauf prescription différente ou nécessité dans le contexte de sa mise en œuvre, aucune partie de cette
publication ne peut être reproduite ni utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique,
y compris la photocopie, ou la diffusion sur l’internet ou sur un intranet, sans autorisation écrite préalable. Une autorisation peut
être demandée à l’ISO à l’adresse ci-après ou au comité membre de l’ISO dans le pays du demandeur.
ISO copyright office
Case postale 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Genève
Tél.: +41 22 749 01 11
E-mail: copyright@iso.org
Web: www.iso.org
Publié en Suisse

© ISO 2024 – Tous droits réservés
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ISO 16946:2024(fr)
Sommaire Page
Avant-propos .iv
Introduction .v
1 Domaine d’application . 1
2 Références normatives . 1
3 Termes et définitions . 1
4 Fabrication . 1
4.1 Acier .1
4.2 Dimensions .1
4.3 Usinage, traitement thermique et état de surface .2
4.4 Repères de référence . .3
5 Affirmation de conformité . 3
Bibliographie . 4

© ISO 2024 – Tous droits réservés
iii

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ISO 16946:2024(fr)
Avant-propos
L'ISO (Organisation internationale de normalisation) est une fédération mondiale d'organismes nationaux
de normalisation (comités membres de l'ISO). L'élaboration des Normes internationales est en général
confiée aux comités techniques de l'ISO. Chaque comité membre intéressé par une étude a le droit de faire
partie du comité technique créé à cet effet. Les organisations internationales, gouvernementales et non
gouvernementales, en liaison avec l'ISO, participent également aux travaux. L'ISO collabore étroitement avec
la Commission électrotechnique internationale (IEC) en ce qui concerne la normalisation électrotechnique.
Les procédures utilisées pour élaborer le présent document et celles destinées à sa mise à jour sont
décrites dans les Directives ISO/IEC, Partie 1. Il convient, en particulier, de prendre note des différents
critères d'approbation requis pour les différents types de documents ISO. Le présent document
a été rédigé conformément a
...

FINAL DRAFT
International
Standard
ISO/FDIS 16946
ISO/TC 135/SC 3
Non-destructive testing —
Secretariat: DIN
Ultrasonic testing — Specification
Voting begins on:
for a step wedge standard block
2024-02-28
Essais non destructifs — Essais par ultrasons — Spécifications
Voting terminates on:
relatives aux blocs d'étalonnage à gradins
2024-04-24
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 SUPPOR TING DOCUMENTATION.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO­
ISO/CEN PARALLEL PROCESSING LOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT
INTERNATIONAL STANDARDS MAY ON OCCASION HAVE
TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL
TO BECOME STAN DARDS TO WHICH REFERENCE MAY BE
MADE IN NATIONAL REGULATIONS.
Reference number
ISO/FDIS 16946:2024(en) © ISO 2024

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FINAL DRAFT
ISO/FDIS 16946:2024(en)
International
Standard
ISO/FDIS 16946
ISO/TC 135/SC 3
Non-destructive testing —
Secretariat: DIN
Ultrasonic testing — Specification
Voting begins on:
for a step wedge standard block
Essais non destructifs — Essais par ultrasons — Spécifications
Voting terminates on:
relatives aux blocs d'étalonnage à gradins
RECIPIENTS OF THIS DRAFT ARE INVITED TO SUBMIT,
COPYRIGHT PROTECTED DOCUMENT
WITH THEIR COMMENTS, NOTIFICATION OF ANY
RELEVANT PATENT RIGHTS OF WHICH THEY ARE AWARE
AND TO PROVIDE SUPPOR TING DOCUMENTATION.
© ISO 2024
IN ADDITION TO THEIR EVALUATION AS
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO­
ISO/CEN PARALLEL PROCESSING
LOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
INTERNATIONAL STANDARDS MAY ON OCCASION HAVE
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL
or ISO’s member body in the country of the requester.
TO BECOME STAN DARDS TO WHICH REFERENCE MAY BE
MADE IN NATIONAL REGULATIONS.
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 Reference number
ISO/FDIS 16946:2024(en) © ISO 2024

© ISO 2024 – All rights reserved
ii

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ISO/FDIS 16946:2024(en)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Manufacture . 1
4.1 Steel .1
4.2 Dimensions .1
4.3 Machining, heat treatment and surface finish .2
4.4 Reference marks .3
5 Statement of conformity .
...

2024-01-11
ISO/FDIS 16946:2024(E)
ISO/TC 135/SC 3/WG 5
Secretariat: DIN
Date: 2024-02-14
Non-destructive testing — Ultrasonic testing — Specification for a
step wedge standard block
Essais non destructifs — Contrôle — Essais par ultrasons —- Spécification relative au bloc— Spécifications
relatives aux blocs d'étalonnage à gradins
FDIS stage

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ISO/FDIS 16946:2024(Een)
© ISO 20232024
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
EmailE-mail: copyright@iso.org
Website: www.iso.orgwww.iso.org
Published in Switzerland
ii © ISO 20243 2024 – All rights reserved

ii

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ISO/FDIS 16946:2024(Een)
Contents
Foreword . iv
Introduction. v
1 Scope .1
2 Normative references .1
3 Terms and definitions .1
4 Manufacture .1
4.1 Steel .1
4.2 Dimensions .1
4.3 Machining, heat treatment and surface finish .2
4.4 Reference marks .3
5 Statement of conformity .4
Bibliography .5

Foreword iv
Introduction v
1 Scope 1
2 Normative references 1
3 Terms and definitions 1
4 Manufacture 1
4.1 Steel 1
4.2 Dimensions 1
4.3 Machining, heat treatment and surface finish 2
4.4 Reference marks 3
5 Declaration of conformity 3
Bibliography 4

© ISO 2024 – All rights reserved

iii

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ISO/FDIS 16946:2024(Een)
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 document should be noted. This document was drafted in accordance with
...