EN ISO 16823:2014
(Main)Non-destructive testing - Ultrasonic testing - Transmission technique (ISO 16823:2012)
Non-destructive testing - Ultrasonic testing - Transmission technique (ISO 16823:2012)
ISO 16823:2012 specifies the principles of transmission techniques.
Transmission techniques can be used for: a) detection of imperfections; b) determination of attenuation.
The general principles required for the use of ultrasonic examination of industrial products are described in ISO 16810.
The transmission technique is used for examination of flat products, e.g. plates and sheets.
Further, it is used for examinations e.g.: 1) where the shape, dimensions or orientation of possible imperfections are unfavourable for direct reflection; 2) in materials with high attenuation; 3) in thin products.
Zerstörungsfreie Prüfung - Ultraschallprüfung - Durchschallungstechnik (ISO 16823:2012)
Diese Internationale Norm legt die Grundlagen der Durchschallungstechnik fest.
Die Durchschallungstechnik kann angewendet werden:
- zum Nachweis von Unregelmäßigkeiten;
- zur Bestimmung der Schallschwächung.
Die allgemeinen Grundlagen, die zur Anwendung der Ultraschallprüfung an Industrieerzeugnissen erforderlich sind, sind in ISO 16810 aufgeführt.
Die Durchschallungstechnik wird zur Prüfung von Flacherzeugnissen, z. B. Blechen, verwendet.
Weiterhin wird sie z. B. bei Prüfungen verwendet:
- bei denen Gestalt, Abmessungen oder Orientierung möglicher Unregelmäßigkeiten für eine direkte Reflexion ungünstig sind;
- bei Werkstoffen mit hoher Schallschwächung;
- bei dünnen Erzeugnissen.
Essais non destructifs - Contrôle par ultrasons - Technique par transmission (ISO 16823:2012)
L'ISO 16823:2012 spécifie les principes des techniques de transmission.
Les techniques de transmission peuvent être utilisées pour la détection de discontinuités et la détermination de l'atténuation.
Les principes généraux exigés pour l'utilisation du contrôle par ultrasons de produits industriels sont décrits dans l'ISO 16810.
La technique par transmission est utilisée pour le contrôle de produits plats, par exemple plaques et tôles.
Elle est également utilisée pour l'examen d'éventuelles discontinuités dont la forme, les dimensions ou l'orientation sont défavorables au contrôle par réflexion, de matériaux à atténuation élevée et de produits minces.
Neporušitvene preiskave - Ultrazvočne preiskave - Prehodna metoda (ISO 16823:2012)
Standard EN ISO 16823 določa načela prehodnih metod. Prehodne metode se lahko uporabljajo za: - zaznavanje nepravilnosti; - določevanje stopnje krčenja. Osnovna načela za uporabo ultrazvočnih preiskav industrijskih izdelkov so opisana v standardu ISO 16810. Prehodna metoda se uporablja za pregled ploskih izdelkov, npr. plošč in trakov. Poleg tega se uporablja za pregled v primerih, ko: - so oblika, velikost ali položaj možnih nepravilnosti neprimerni za direktni odboj; - pri materialih, ki se močno krčijo; - pri tankih izdelkih.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-julij-2014
1DGRPHãþD
SIST EN 583-3:1999
1HSRUXãLWYHQHSUHLVNDYH8OWUD]YRþQHSUHLVNDYH3UHKRGQDPHWRGD ,62
Non-destructive testing - Ultrasonic testing - Transmission technique (ISO 16823:2012)
Zerstörungsfreie Prüfung - Ultraschallprüfung - Durchschallungstechnik (ISO
16823:2012)
Essais non destructifs - Contrôle par ultrasons - Technique par transmission (ISO
16823:2012)
Ta slovenski standard je istoveten z: EN ISO 16823:2014
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 16823
NORME EUROPÉENNE
EUROPÄISCHE NORM
March 2014
ICS 19.100 Supersedes EN 583-3:1997
English Version
Non-destructive testing - Ultrasonic testing - Transmission
technique (ISO 16823:2012)
Essais non destructifs - Contrôle par ultrasons - Technique Zerstörungsfreie Prüfung - Ultraschallprüfung -
par transmission (ISO 16823:2012) Durchschallungstechnik (ISO 16823:2012)
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 16823:2014 E
worldwide for CEN national Members.
Contents Page
Foreword .3
Foreword
The text of ISO 16823:2012 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 16823:2014 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 583-3:1997.
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 16823:2012 has been approved by CEN as EN ISO 16823:2014 without any modification.
INTERNATIONAL ISO
STANDARD 16823
First edition
2012-04-01
Non-destructive testing — Ultrasonic
testing — Transmission technique
Essais non destructifs — Contrôle par ultrasons — Technique par
transmission
Reference number
ISO 16823:2012(E)
©
ISO 2012
ISO 16823:2012(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
ISO's member body in the country of the requester.
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Published in Switzerland
ii © ISO 2012 – All rights reserved
ISO 16823:2012(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope.1
2 Normative references.1
3 Terms and definitions .1
4 Principles of the examination .1
4.1 Basic techniques and set-up.1
4.2 Capability of detection of imperfections.3
4.3 Requirements for geometry and access.4
4.4 Effects of variations in coupling, angulation and alignment of probe .4
5 Examination technique.4
5.1 General.4
5.2 Sensitivity setting.4
5.3 Scanning.4
5.4 Evaluation of imperfections .4
5.5 Determination of attenuation coefficient .5
ISO 16823:2012(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.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
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.
ISO 16823 was prepared by Technical Committee ISO/TC 135, Non-destructive testing, Subcommittee SC 3,
Ultrasonic testing.
iv © ISO 2012 – All rights reserved
ISO 16823:2012(E)
Introduction
This International Standard is based on EN 583-3:1997, Non-destructive testing — Ultrasonic examination —
Part 3: Transmission technique.
The following International Standards are linked.
ISO 16810, Non-destructive testing — Ultrasonic testing — General principles
ISO 16811, Non-destructive testing — Ultrasonic testing — Sensitivity and range setting
ISO 16823, Non-destructive testing — Ultrasonic testing — Transmission technique
ISO 16826, Non-destructive testing — Ultrasonic testing — Examination for discontinuities perpendicular to
the surface
ISO 16827, Non-destructive testing — Ultrasonic testing — Characterization and sizing of discontinuities
ISO 16828, Non-destructive testing — Ultrasonic testing — Time-of-flight diffraction technique as a method for
detection and sizing of discontinuities
INTERNATIONAL STANDARD ISO 16823:2012(E)
Non-destructive testing — Ultrasonic testing — Transmission
technique
1 Scope
This International Standard specifies the principles of transmission techniques.
Transmission techniques can be used for:
⎯ detection of imperfections;
⎯ determination of attenuation.
The general principles required for the use of ultrasonic examination of industrial products are described in
ISO 16810.
The transmission technique is used for examination of flat products, e.g. plates and sheets.
Further, it is used for examinations e.g.:
⎯ where the shape, dimensions or orientation of possible imperfections are unfavourable for direct
reflection;
⎯ in materials with high attenuation;
⎯ in thin products.
2 Normative references
The following referenced documents are indispensable for the application 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 5577, Non-destructive testing — Ultrasonic inspection — Vocabulary
EN 1330-4, Non-destructive testing — Terminology — Part 4: Terms used in ultrasonic testing
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 5577 and EN 1330-4 apply.
4 Principles of the examination
4.1 Basic techniques and set-up
In its simplest application two probes, one emitting and the second receiving, are placed so that the receiving
probe receives the sound transmitted through the object. This can be achieved with straight beam probes or
angle beam probes, see Table 2, e) to h).
ISO 16823:2012(E)
Alternatively, the examination can be carried out using a single probe where the sound is reflected on a
surface of an object on the opposite side of the examination object or on the opposite surface of the
examination object (back wall), see Table 2, a) to d). See also Table 1.
Table 1 — Techniques and typical set-ups used in transmission technique
wave mode continuous waves pulsed waves
wave type longitudinal or transverse longitudinal or transverse
number of transducers
2 1 or 2
angle of incidence
normal normal or oblique
evalution of
amplitude of transmitted sound amplitude or time of flight of trans-
mitted pulse or echo
The decrease in amplitude of the transmitted signal can be used to indicate the presence of a discontinuity
located in the sound path, or to indicate material attenuation. In addition, the position of the transmitted signal
along the timebase of the instrument can be used to indicate material thickness.
Examination can be carried out with either continuous or pulsed ultrasonic waves, except when the technique
is used for thickness measurement where only pulsed ultrasonic waves apply.
Straight beam or angle beam probes can be used depending on the scope of the examination.
A probe can be coupled to the product by means of a couplant, a squirter, by immersing the product or by
applying a wheel probe.
2 © ISO 2012 – All rights reserved
ISO 16823:2012(E)
Table 2 — Possible configurations for transmission technique
One probe Two probes
Straight beam contact
a)
e)
Angle beam contact
b) f)
Total immersion
g)
c)
Local immersion (squirter)
d)
h)
Key
1 probe
2 object
3 water
4.2 Capability of detection of imperfections
When used for the detection of imperfections, any imperfection (or group of imperfections) shall intercept a
significant proportion (i.e. 25 % to 50 %) of the cross-sectional area of the ultrasonic beam before an
unambiguous change in signal amplitude is observed. This technique can only be used for detecting
imperfections or groups of imperfections which are relatively large compared to the ultrasonic beam area, e.g.
la
...
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