EN ISO 16828:2014
(Main)Non-destructive testing - Ultrasonic testing - Time-of-flight diffraction technique as a method for detection and sizing of discontinuities (ISO 16828:2012)
Non-destructive testing - Ultrasonic testing - Time-of-flight diffraction technique as a method for detection and sizing of discontinuities (ISO 16828:2012)
ISO 16828:2012 defines the general principles for the application of the time-of-flight diffraction (TOFD) technique for both detection and sizing of discontinuities in low alloyed carbon steel components. It can also be used for other types of materials, provided the application of the TOFD technique is performed with necessary consideration of geometry, acoustical properties of the materials, and the sensitivity of the examination.
Although it is applicable, in general terms, to discontinuities in materials and applications covered by ISO 16810, it contains references to the application on welds. This approach has been chosen for reasons of clarity as to the ultrasonic probe positions and directions of scanning.
Unless otherwise specified in the referencing documents, the minimum requirements of ISO 16828:2012 are applicable.
Unless explicitly stated otherwise, ISO 16828:2012 is applicable to the following product classes as defined in ISO 16811: a) class 1, without restrictions; b) classes 2 and 3, restrictions apply as stated in Clause 9.
The inspection of products of classes 4 and 5 requires special procedures. These are also addressed in Clause 9.
Techniques for the use of TOFD for weld inspection are described in ISO 10863.
The related acceptance criteria are given in ISO 15626.
Zerstörungsfreie Prüfung - Ultraschallprüfung - Beugungslaufzeittechnik, eine Technik zum Auffinden und Ausmessen von Inhomogenitäten (ISO 16828:2012)
Diese Internationale Norm legt die allgemeinen Grundsätze für die Anwendung der Beugungslaufzeittechnik (TOFD) für das Auffinden und die Größenbestimmung von Inhomogenitäten in Bauteilen aus niedrig legierten Kohlenstoffstählen fest. Das TOFD-Verfahren kann auch auf andere Werkstoffarten angewendet werden, wenn es mit der notwendigen Berücksichtigung von Geometrie, akustischen Eigenschaften der Werkstoffe sowie Nachweisempfindlichkeit der Prüfung angewendet wird.
Obwohl es im Allgemeinen bei Inhomogenitäten in Werkstoffen anwendbar ist, die in ISO 16810 behandelt werden, sind Hinweise für die Prüfung von Schweißnähten enthalten. Dieser Weg wurde zur Verdeutlichung der Ausrichtungen des Ultraschallkopfes und der Prüfrichtungen gewählt.
Soweit in Bezugsdokumenten nichts anderes festgelegt worden ist, sind die Mindestanforderungen dieser Norm anwendbar.
Wenn es nicht ausdrücklich anders angegeben wird, ist diese Norm auf folgende in ISO 16811 festgelegte Produktklassen anwendbar:
Klasse 1, ohne Einschränkungen;
Klassen 2 und 3, mit den angegebenen Einschränkungen.
ANMERKUNG 1 Siehe Abschnitt 9.
Die Prüfung von Produkten der Klassen 4 und 5 erfordert Spezialverfahren, auf die auch hingewiesen wird.
ANMERKUNG 2 Siehe Abschnitt 9.
ANMERKUNG 3 Die Verfahren mit TOFD zur Inspektion von Schweißnähten sind in ISO 10863 beschrieben.
ANMERKUNG 4 Die entsprechenden Zulässigkeitskriterien sind in ISO 15626 behandelt.
Essais non destructifs - Contrôle par ultrasons - Technique de diffraction du temps de vol utilisée comme méthode de détection et de dimensionnement des discontinuités (ISO 16828:2012)
L'ISO 16828:2012 définit les principes généraux pour l'application de la technique de diffraction du temps de vol (TOFD) pour la détection et le dimensionnement des discontinuités dans les composants en acier au carbone faiblement allié. Elle peut également être employée pour d'autres types de matériaux, à condition que l'application de la technique TOFD tienne compte de la géométrie, des propriétés acoustiques des matériaux et de la sensibilité de l'examen.
Bien qu'elle soit applicable, en termes génériques, aux discontinuités des matériaux et applications couvertes par l'ISO 16810, elle contient des références aux applications sur les soudures. Cette approche a été choisie pour des raisons de clarté en termes de position des traducteurs ultrasonores et de direction de balayage.
Sauf indications contraires dans les documents de référence, les exigences minimales de l'ISO 16828:2012 sont applicables.
Sauf dispositions contraires explicites, l'ISO 16828:2012 s'applique aux classes de produits suivantes, telles que définies dans l'ISO 16811: classe 1: sans restriction; classes 2 et 3: les restrictions spécifiées s'appliquent comme établi dans l'Article 9.
L'examen des produits de classes 4 et 5 requiert des modes opératoires particuliers, qui sont également traités dans l'Article 9.
Les techniques d'utilisation de la méthode TOFD pour l'examen des soudures sont décrites dans l'ISO 10863.
Les critères d'acceptation associés sont donnés dans l'ISO 15626.
Neporušitvene preiskave - Ultrazvočne preiskave - Metoda zvočne poti za odkrivanje in ocenjevanje velikosti nezveznosti (ISO 16828:2012)
Standard EN ISO 16828 opredeljuje osnovna načela za uporabo metode zvočne poti (TOFD) za odkrivanje in ocenjevanje velikosti nezveznosti v malolegiranih komponentah iz ogljikovega jekla. Uporablja se lahko tudi za druge vrste materialov, če se metodo TOFD izvede ob upoštevanju geometrije in akustičnih lastnosti materialov ter občutljivosti preizkusa. Čeprav se standard v splošnem uporablja za nezveznosti v materialih in uporabo, ki jo zajema standard ISO 16810, se v delih nanaša tudi na zvare. Ta metoda je bila izbrana zaradi nedvoumnosti glede postavitve ultrazvočne sonde in smeri skeniranja. Minimalne zahteve tega mednarodnega standarda so veljavne, razen če je v referenčnih dokumentih drugače določeno. Ta mednarodni standard velja za naslednje razrede izdelkov, ki so opredeljeni v standardu ISO 16811, razen če ni izrecno drugače določeno: - razred 1 brez omejitev; - določene omejitve veljajo za razreda 2 in 3.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-julij-2014
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SIST EN 583-6:2009
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Non-destructive testing - Ultrasonic testing - Time-of-flight diffraction technique as a
method for detection and sizing of discontinuities (ISO 16828:2012)
Zerstörungsfreie Prüfung - Ultraschallprüfung - Beugungslaufzeittechnik, eine Technik
zum Auffinden und Ausmessen von Inhomogenitäten (ISO 16828:2012)
Essais non destructifs - Contrôle par ultrasons - Technique de diffraction du temps de vol
utilisée comme méthode de détection et de dimensionnement des discontinuités (ISO
16828:2012)
Ta slovenski standard je istoveten z: EN ISO 16828:2014
ICS:
19.100 Neporušitveno preskušanje Non-destructive testing
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD
EN ISO 16828
NORME EUROPÉENNE
EUROPÄISCHE NORM
March 2014
ICS 19.100 Supersedes EN 583-6:2008
English Version
Non-destructive testing - Ultrasonic testing - Time-of-flight
diffraction technique as a method for detection and sizing of
discontinuities (ISO 16828:2012)
Essais non destructifs - Contrôle par ultrasons - Technique Zerstörungsfreie Prüfung - Ultraschallprüfung -
de diffraction du temps de vol utilisée comme méthode de Beugungslaufzeittechnik, eine Technik zum Auffinden und
détection et de dimensionnement des discontinuités (ISO Ausmessen von Inhomogenitäten (ISO 16828:2012)
16828:2012)
This European Standard was approved by CEN on 9 February 2014.
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, 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: Avenue Marnix 17, B-1000 Brussels
© 2014 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 16828:2014 E
worldwide for CEN national Members.
Contents Page
Foreword .3
Foreword
The text of ISO 16828:2012 has been prepared by Technical Committee ISO/TC 135 “Non-destructive testing”
of the International Organization for Standardization (ISO) and has been taken over as EN ISO 16828:2014 by
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 2014, and conflicting national standards shall be
withdrawn at the latest by September 2014.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 583-6:2008.
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, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.
Endorsement notice
The text of ISO 16828:2012 has been approved by CEN as EN ISO 16828:2014 without any modification.
INTERNATIONAL ISO
STANDARD 16828
First edition
2012-04-01
Non-destructive testing — Ultrasonic
testing — Time-of-flight diffraction
technique as a method for detection and
sizing of discontinuities
Essais non destructifs — Contrôle par ultrasons — Technique de
diffraction du temps de vol utilisée comme méthode de détection et de
dimensionnement des discontinuités
Reference number
ISO 16828:2012(E)
©
ISO 2012
ISO 16828:2012(E)
© ISO 2012
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means,
electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or
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ii © ISO 2012 – All rights reserved
ISO 16828:2012(E)
Contents Page
Foreword .v
Introduction .vi
1 Scope.1
2 Normative references.1
3 Terms, definitions, symbols and abbreviations.2
3.1 Terms and definitions .2
3.2 Abbreviations.2
3.3 Symbols.2
4 General.3
4.1 Principle of the technique.3
4.2 Requirements for surface condition and couplant .5
4.3 Materials and process type .5
5 Qualification of personnel .5
6 Equipment requirements.5
6.1 Ultrasonic equipment and display.5
6.2 Ultrasonic probes.6
6.3 Scanning mechanisms.7
7 Equipment set-up procedures .7
7.1 General.7
7.2 Probe choice and probe separation .8
7.2.1 Probe selection.8
7.2.2 Probe separation.9
7.3 Time window setting.9
7.4 Sensitivity setting.9
7.5 Scan resolution setting.10
7.6 Setting of scanning speed.10
7.7 Checking system performance.10
8 Interpretation and analysis of data.10
8.1 Basic analysis of discontinuities.10
8.1.1 General.10
8.1.2 Characterisation of discontinuities .10
8.1.3 Estimation of discontinuity position .11
8.1.4 Estimation of discontinuity length .11
8.1.5 Estimation of discontinuity depth and height .12
8.2 Detailed analysis of discontinuities .12
8.2.1 General.12
8.2.2 Additional scans.13
8.2.3 Additional algorithms.14
9 Detection and sizing in complex geometries .14
10 Limitations of the technique.14
10.1 General.14
10.2 Accuracy and resolution.15
10.2.1 General.15
10.2.2 Errors in the lateral position .15
10.2.3 Timing errors.15
10.2.4 Errors in sound velocity .15
10.2.5 Errors in probe centre separation .15
10.2.6 Spatial resolution.16
10.3 Dead zones.16
ISO 16828:2012(E)
11 TOFD examination without data recording .16
12 Test procedure.17
13 Test report.17
Annex A (normative) Reference blocks .18
Bibliography .19
iv © ISO 2012 – All rights reserved
ISO 16828:2012(E)
Foreword
ISO (the
...
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