Non-destructive testing - Qualification of radiographic film digitisation systems - Part 1: Definitions, quantitative measurements of image quality parameters, standard reference film and qualitative control (ISO 14096-1:2005)

ISO 14096-1:2005 specifies procedures for the evaluation of basic performance parameters of the radiographic film digitisation process such as spatial resolution and spatial linearity, density range, density contrast sensitivity and characteristic transfer curve. They can be integrated into the system software and together with a standard reference film used for quality control of the digitisation process. This reference film provides a series of test targets for performance evaluation. The test targets are suitable for evaluating a digitisation system with a spatial resolution down to 25 micrometres, a density contrast sensitivity down to 0,02 optical density, a density range of 0,5 to 4,5 and a film size capacity of (350 x 430) mm2. This standard does not address signal processing and display of the digitised data.

Zerstörungsfreie Prüfung - Qualifizierung von Röntgenfilm-Digitalisierungssystemen - Teil 1: Definitionen, quantitative Messung von Bildqualitätsparametern, Standard-Referenzfilm und Qualitätssicherung (ISO 14096-1:2005)

Diese Europäische Norm legt Messvorschriften für die Bestimmung von Basisparametern für Röntgenfilm-Digitalisierungssysteme wie Ortsauflösung und geometrische Linearität, Umfang der optischen Dichte, Dichtekontrastempfindlichkeit und charakteristische Übertragungskurve fest. Diese Messvorschriften können in die Systemsoftware integriert und in Verbindung mit einem Standard-Referenzfilm (wie in Abschnitt 5 beschrieben) zur Qualitätssicherung des Digitalisierungsvorganges benutzt werden. Dieser Referenzfilm verfügt über eine Reihe von Testmustern zur Bestimmung der Leistungsfähigkeit des Digitalisierungssystems. Die Testmuster sind geeignet für die Überprüfung von Digitalisierungssystemen mit einer Ortsauflösung von maximal 25 µm, einer Dichtekontrastempfindlichkeit von 0,02 optische Dichten, einem Bereich der optischen Dichte („Filmschwärzung“) zwischen 0,5 und 4,5 und einer maximalen Filmgröße von (350  430) mm2. Diese Norm behandelt weder die Signalverarbeitung noch die Darstellung der digitalisierten Daten.

Essais non destructifs - Qualification des systèmes de numérisation des films radiographiques - Partie 1: Définitions, mesures quantitatives des paramètres de qualité d'image, film de référence normalisé et contrôle qualitatif (ISO 14096-1:2005)

L'ISO 14096-1:2005 spécifie les procédures d'évaluation des paramètres de performance de base du processus de numérisation des films radiographiques tels que la résolution et la linéarité spatiales, la plage de densité, la sensibilité au contraste de densité et la courbe de transfert caractéristique. Ils peuvent être intégrés au logiciel du système ainsi qu'au film de référence normalisé utilisé pour le contrôle qualité du processus de numérisation. Ce film de référence comporte une série de cibles de contrôle pour l'évaluation de la performance. Ces cibles de contrôle permettent une évaluation du système de numérisation présentant une résolution spatiale allant jusqu'à 25 µm, une sensibilité au contraste de densité avec jusqu'à 0,02 de densité optique, une plage de densité comprise entre 0,5 et 4,5 et un format de film d'une capacité de (350 x 430) mm2 (14 x 17 pouces). L'ISO 14096-1:2005 ne s'adresse pas au traitement du signal et à l'affichage des données numérisées.

Neporušitvene preiskave - Kvalificiranje sistemov za digitaliziranje radiogramov - 1. del: Definicije, kvantitativne meritve parametrov kakovosti radiografske slike, standardni referenčni radiogram in kvalitativna kontrola (ISO 14096-1:2005)

General Information

Status
Published
Publication Date
03-Mar-2020
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Due Date
04-Mar-2020
Completion Date
04-Mar-2020

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SLOVENSKI STANDARD
SIST EN ISO 14096-1:2020
01-junij-2020
Nadomešča:
SIST EN 14096-1:2004

Neporušitvene preiskave - Kvalificiranje sistemov za digitaliziranje radiogramov -

1. del: Definicije, kvantitativne meritve parametrov kakovosti radiografske slike,

standardni referenčni radiogram in kvalitativna kontrola (ISO 14096-1:2005)

Non-destructive testing - Qualification of radiographic film digitisation systems - Part 1:

Definitions, quantitative measurements of image quality parameters, standard reference

film and qualitative control (ISO 14096-1:2005)

Zerstörungsfreie Prüfung - Qualifizierung von Röntgenfilm-Digitalisierungssystemen -

Teil 1: Definitionen, quantitative Messung von Bildqualitätsparametern, Standard-

Referenzfilm und Qualitätssicherung (ISO 14096-1:2005)
Essais non destructifs - Qualification des systèmes de numérisation des films

radiographiques - Partie 1: Définitions, mesures quantitatives des paramètres de qualité

d'image, film de référence normalisé et contrôle qualitatif (ISO 14096-1:2005)
Ta slovenski standard je istoveten z: EN ISO 14096-1:2020
ICS:
19.100 Neporušitveno preskušanje Non-destructive testing
37.040.25 Radiografski filmi Radiographic films
SIST EN ISO 14096-1:2020 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 14096-1:2020
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SIST EN ISO 14096-1:2020
EN ISO 14096-1
EUROPEAN STANDARD
NORME EUROPÉENNE
March 2020
EUROPÄISCHE NORM
ICS 37.040.25 Supersedes EN 14096-1:2003
English Version
Non-destructive testing - Qualification of radiographic film
digitisation systems - Part 1: Definitions, quantitative
measurements of image quality parameters, standard
reference film and qualitative control (ISO 14096-1:2005)

Essais non destructifs - Qualification des systèmes de Zerstörungsfreie Prüfung - Qualifizierung von

numérisation des films radiographiques - Partie 1: Röntgenfilm-Digitalisierungssystemen - Teil 1:

Définitions, mesures quantitatives des paramètres de Definitionen, quantitative Messung von

qualité d'image, film de référence normalisé et contrôle Bildqualitätsparametern, Standard-Referenzfilm und

qualitatif (ISO 14096-1:2005) Qualitätssicherung (ISO 14096-1:2005)
This European Standard was approved by CEN on 6 January 2020.

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

© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 14096-1:2020 E

worldwide for CEN national Members.
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SIST EN ISO 14096-1:2020
EN ISO 14096-1:2020 (E)
Contents Page

European foreword ....................................................................................................................................................... 3

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SIST EN ISO 14096-1:2020
EN ISO 14096-1:2020 (E)
European foreword

The text of ISO 14096-1:2005 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 14096-1:2020 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 2020, and conflicting national standards

shall be withdrawn at the latest by September 2020.

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 14096-1:2003.

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 14096-1:2005 has been approved by CEN as EN ISO 14096-1:2020 without any

modification.
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SIST EN ISO 14096-1:2020
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SIST EN ISO 14096-1:2020
INTERNATIONAL ISO
STANDARD 14096-1
First edition
2005-06-15
Non-destructive testing — Qualification
of radiographic film digitisation
systems —
Part 1:
Definitions, quantitative measurements of
image quality parameters, standard
reference film and qualitative control
Essais non destructifs — Qualification des systèmes de numérisation
des films radiographiques —
Partie 1: Définitions, mesures quantitatives des paramètres de qualité
d'image, film de référence normalisé et contrôle qualitatif
Reference number
ISO 14096-1:2005(E)
ISO 2005
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SIST EN ISO 14096-1:2020
ISO 14096-1:2005(E)
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© ISO 2005

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ii © ISO 2005 – All rights reserved
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SIST EN ISO 14096-1:2020
ISO 14096-1:2005(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 14096-1 was prepared by the European Committee for Standardization (CEN) (as EN 14096-1:2003) and

was adopted, under a special “fast-track procedure”, by Technical Committee ISO/TC 135, Non-destructive

testing, Subcommittee SC 5, Radiation methods ISO/TC, in parallel with its approval by the ISO member

bodies.

ISO 14096 consists of the following parts, under the general title Non-destructive testing — Qualification of

radiographic film digitisation systems:

 Part 1: Definitions, quantitative measurements of image quality parameters, standard reference film and

qualitative control
 Part 2: Minimum requirements
© ISO 2005 – All rights reserved iii
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SIST EN ISO 14096-1:2020
ISO 14096-1:2005(E)
EN 14096-1:2003 (E)
Contents Page

Foreword ............................................................................................................................................................3

Introduction........................................................................................................................................................4

1 Scope.....................................................................................................................................................5

2 Normative references ...........................................................................................................................5

3 Terms and definitions...........................................................................................................................5

4 Evaluation procedures .........................................................................................................................8

5 Standard reference film.......................................................................................................................12

6 Qualitative control and long term stability of the digitisation system ...........................................14

iv © ISO 2005 – All rights reserved
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SIST EN ISO 14096-1:2020
ISO 14096-1:2005(E)
EN 14096-1:2003 (E)
Foreword

This document (EN 14096-1:2003) has been prepared 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 October 2003, and conflicting national standards shall be withdrawn at the latest

by October 2003.

EN 14096 comprises a series of European Standards for radiographic film digitisation systems which is made up of

the following:

EN 14096-1, Non-destructive testing – Qualification of radiographic film digitisation systems – Part 1: Definitions,

quantitative measurements of image quality parameters, standard reference film and qualitative control

EN 14096-2, Non-destructive testing – Qualification of radiographic film digitisation systems – Part 2: Minimum

requirements

According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following

countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland,

France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal,

Slovakia, Spain, Sweden, Switzerland and the United Kingdom.
© ISO 2005 – All rights reserved v
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SIST EN ISO 14096-1:2020
ISO 14096-1:2005(E)
EN 14096-1:2003 (E)
Introduction

Radiographic film systems are used for industrial inspection by X- and gamma rays. To apply modern means of

computer support for analysis, transmission and storage the information stored in the radiographic film should be

converted into digital data (digitisation). This European Standard defines minimum requirements to ensure that the

relevant information for evaluation of the digital data is preserved during the film digitisation process.

vi © ISO 2005 – All rights reserved
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SIST EN ISO 14096-1:2020
ISO 14096-1:2005(E)
EN 14096-1:2003 (E)
1 Scope

This European Standard specifies procedures for the evaluation of basic performance parameters of the

radiographic film digitisation process such as spatial resolution and spatial linearity, density range, density contrast

sensitivity and characteristic transfer curve. They can be integrated into the system software and together with a

standard reference film (as described in clause 5) used for quality control of the digitisation process. This reference

film provides a series of test targets for performance evaluation. The test targets are suitable for evaluating a

digitisation system with a spatial resolution down to 25 μm, a density contrast sensitivity down to 0,02 optical

density, a density range of 0,5 to 4,5 and a film size capacity of (350 x 430) mm². This standard does not address

signal processing and display of the digitised data.
2 Normative references

This European Standard incorporates by dated or undated reference, provisions from other publications. These

normative references are cited at the appropriate places in the text, and the publications are listed hereafter. For

dated references, subsequent amendments to or revisions of any of these publications apply to this European

Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the

publication referred to applies (including amendments).

EN 584-1, Non-destructive testing  Industrial radiographic film — Part 1: Classification of film systems for

industrial radiography.

EN 14096-2, Non-destructive testing — Qualification of radiographic film digitisation systems — Part 2: Minimum

requirements.
3 Terms and definitions

For the purposes of this European Standard, the following terms and definitions apply.

3.1
radiographic film digitisation system
digitiser
sequential application of the two functions below:

a) detection of the diffuse transmittance of a small unit area of the film (pixel, picture element) by means of an

optical detector, giving an electric output signal (geometrical digitisation);

b) conversion of the above electrical signal into a numerical value (densitometrical digitisation)

3.2
scanning aperture

spatial extension (area) on the radiographic film through which the digitiser performs the scanning of one pixel for

geometrical digitisation
The size of the scanning aperture corresponds:
© ISO 2005 – All rights reserved 1
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SIST EN ISO 14096-1:2020
ISO 14096-1:2005(E)
EN 14096-1:2003 (E)
3.3
pixel size

geometrical centre-to-centre distance between adjacent pixels in a row (horizontal pitch) or column (vertical pitch)

of the scanned image
3.4
optical density

logarithmic value to the base 10 of the diffuse light intensity ratio in front of (I ) and behind (I ) the radiographic film

0 D
according to equation (1):
D  lg (1)
3.5
edge spread function
ESF
resulting profile across a step function after digitisation
NOTE This function can be either as light intensity or optical density.
3.6
digitiser unsharpness

blurring of sharp edges by the scanning aperture, scattered light, flare or electronic bandwidth

It is determined from the geometrical distance of the 10% and 90% point of the Edge Spread Function (ESF) from a

light intensity step function.
3.7
spatial frequency
described by a sinusoidal intensity variation along a geometrical axis

The period of this function is measured in number of line pairs per millimetre (lp/mm).

3.8
spatial frequency maximum value

in theory, this value, in number of line pairs per millimetre, is given by the Nyquist sampling theorem, see equation

(2):
f  1 / (2 * P) (2)

Practically, the scanning aperture, the mechanics and the electronics of the digitiser reduce this theoretical value.

3.9
modulation transfer function
MTF

normalised magnitude of the Fourier-transform (FT) of the differentiated spatial optical density edge spread

function (ESF) (see Figure 1)

It describes the unsharpness function of the digitiser (contrast transmission as a function of the object size).

2 © ISO 2005 – All rights reserved
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SIST EN ISO 14096-1:2020
ISO 14096-1:2005(E)
EN 14096-1:2003 (E)

NOTE This MTF calculation is based on optical densities, which correspond to the X-ray dose.

3.10
density range

range of maximum and minimum optical densities, which can be measured by the digitiser

Depending on the construction of the digitiser, this density range can be split into several working ranges (e.g. by a

different illumination power and/or a different detector integration time).
3.11
characteristic transfer curve
CTC
relationship between the optical density of the film and the digitised data
3.12
digital resolution in bit

number of bits provided by the analogue-to-digital converter of the digitiser used for densitometrical digitisation

NOTE A digital resolution of N bits corresponds to 2 digital values.
3.13
density sampling pitch

optical density variation corresponding to an increase of 1 in the digitised value

NOTE This density variation depends on t
...

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