EN ISO 19232-3:2013

SLOVENSKI STANDARD
01-november-2013
1DGRPHãþD
SIST EN 462-3:1997
Neporušitveno preskušanje - Kakovost radiografske slike - 3. del: Razredi
kakovosti slike za železne kovine (ISO 19232-3:2013)
Non-destructive testing - Image quality of radiographs - Part 3: Image quality classes for
ferrous metals (ISO 19232-3:2013)
Zerstörungsfreie Prüfung - Bildgüte von Durchstrahlungsaufnahmen - Teil 3:
Bildgüteklassen für Eisenwerkstoffe (ISO 19232-3:2013)
Essais non destructifs - Qualité d'image des radiogrammes - Partie 3: Classes de qualité
d'image pour des métaux ferreux (ISO 19232-3:2013)
Ta slovenski standard je istoveten z: EN ISO 19232-3:2013
ICS:
19.100 Neporušitveno preskušanje Non-destructive testing
77.080.01 Železne kovine na splošno Ferrous metals in general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN ISO 19232-3
NORME EUROPÉENNE
EUROPÄISCHE NORM
June 2013
ICS 19.100 Supersedes EN 462-3:1996
English Version
Non-destructive testing - Image quality of radiographs - Part 3:
Image quality classes (ISO 19232-3:2013)
Essais non destructifs - Qualité d'image des radiogrammes Zerstörungsfreie Prüfung - Bildgüte von
- Partie 3: Classes de qualité d'image (ISO 19232-3:2013) Durchstrahlungsaufnahmen - Teil 3: Bildgüteklassen (ISO
19232-3:2013)
This European Standard was approved by CEN on 15 May 2013.

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

Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2013 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 19232-3:2013: E
worldwide for CEN national Members.

Contents Page
Foreword .3
Foreword
This document (EN ISO 19232-3:2013) 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 December 2013, and conflicting national standards shall be withdrawn
at the latest by December 2013.
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 462-3:1996.
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 19232-3:2013 has been approved by CEN as EN ISO 19232-3:2013 without any modification.

INTERNATIONAL ISO
STANDARD 19232-3
Second edition
2013-06-15
Non-destructive testing — Image
quality of radiographs —
Part 3:
Image quality classes
Essais non destructifs — Qualité d’image des radiogrammes —
Partie 3: Classes de qualité d’image
Reference number
ISO 19232-3:2013(E)
©
ISO 2013
ISO 19232-3:2013(E)
© ISO 2013
All rights reserved. Unless otherwise specified, 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
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Published in Switzerland
ii © ISO 2013 – All rights reserved

ISO 19232-3:2013(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Image quality classes . 2
4.1 Single-wall radiography . 2
4.2 Double-wall radiography . 2
5 Arrangement. 2
6 Determination of image quality value . 2
7 Image quality values for gamma radiography . 3
8 Single-wall technique; IQI on source side . 4
9 Single-wall technique; IQI on source side . 5
10 Double-wall technique; Double-image; IQI on source side . 6
11 Double-wall technique; Double-image; IQI on source side . 7
12 Double-wall technique; Single or double-image; IQI on film side .8
13 Double-wall technique; Single or double-image; IQI on film side .9
ISO 19232-3:2013(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 19232-3 was prepared by the European Committee for Standardization (CEN) in collaboration with
ISO Technical Committee TC 135, Non-destructive testing, Subcommittee SC 5, Radiation methods, in
accordance with the Agreement on technical cooperation between ISO and CEN (Vienna Agreement).
This second edition cancels and replaces the first edition (ISO 19232-3:2004), which has been technically
revised. Changes include:
— deletion of “ferrous metals” in the scope;
— update of references and definitions;
— replacement of film by detector, which includes film and digital detectors;
192 75
— use of new reduced IQI values for inspection with the gamma sources Ir and Se, by agreement
of contracting parties and deletion of footnotes in the Tables 1 to 12;
— correction of misprints in Tables 5, 6, and 8.
ISO 19232 consists of the following parts, under the general title Non-destructive testing — Image quality
of radiographs:
— Part 1: Determination of the image quality values using wire-type image quality indicators
— Part 2: Determination of the image quality value using step/hole-type image quality indicators
— Part 3: Image quality classes
— Part 4: Experimental evaluation of image quality values and image quality tables
— Part 5: Determination of the image unsharpness value using duplex wire-type image quality indicators
iv © ISO 2013 – All rights reserved

INTERNATIONAL STANDARD ISO 19232-3:2013(E)
Non-destructive testing — Image quality of radiographs —
Part 3:
Image quality classes
1 Scope
This part of ISO 19232 specifies the minimum image quality values to ensure a uniform radiographic
quality. It applies to the two types of image quality indicator as detailed in ISO 19232-1 for wire-type
IQI and ISO 19232-2 for step/hole-type IQI and for the two techniques described in ISO 5579. Values are
specified for the two classes of radiographic technique specified in ISO 5579.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
ISO 5579, Non-destructive testing — Radiographic examination of metallic materials by X- and gamma rays
— Basic rules
ISO 5580, Non-destructive testing — Industrial radiographic illuminators — Minimum requirements
ISO 17636 (all parts), Non-destructive testing of welds — Radiographic testing
ISO 19232-1, Non-destructive testing — Image quality of radiographs — Part 1: Determination of the image
quality of radiographs using wire-type indicators
ISO 19232-2, Non-destructive testing — Image quality of radiographs — Part 2: Determination of the image
quality value using step/hole-type image quality indicators
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 5579 and the following apply.
3.1
image quality indicator
IQI
device comprising a series of elements of graded dimensions which enable a measure of the image
quality to be obtained
Note 1 to entry: The elements of IQI are commonly wires or steps with holes.
3.2
image quality value
measure of the image quality required or achieved and is equal to the thinnest element which can be
detected on the radiograph
Note 1 to entry: See Tables 1 to 12 for the related values.
3.3
image quality table
table of minimum required image quality values versus the penetrated thickness ranges
ISO 19232-3:2013(E)
4 Image quality classes
4.1 Single-wall radiography
The image quality classes given in Tables 1 to 4 can be obtained if the requirements of ISO 5579 are met:
a) Image quality class A for the class A radiographic basic technique (see ISO 5579);
b) Image quality class B for the class B radiographic improved technique (see ISO 5579).
Image quality values given in Tables 1 to 4 apply in cases where the IQI is placed on the source side. If
it is not possible to place the IQI on the source side, it may be placed on the detector side. Tables 1 to 4
cannot be applied in this case.
NOTE The use of exceptional arrangements (for example, use o
...