prEN ISO 14096-2

Non-destructive testing - Qualification of radiographic film digitisation systems - Part 2: Minimum requirements (ISO/DIS 14096-2:2025)

This document specifies three film-digitisation quality classes for the requirements of non-destructive testing. The selected class depends on the radiation energy, the material thickness penetrated and the quality level of the original radiographic film. This document does not address signal processing, display and storage of the digitised data.

Zerstörungsfreie Prüfung - Qualifizierung von Röntgenfilm-Digitalisierungssystemen - Teil 2: Mindestanforderungen (ISO/DIS 14096-2:2025)

Essais non destructifs - Qualification des systèmes de numérisation des films radiographiques - Partie 2: Exigences minimales (ISO/DIS 14096-2:2025)

L'ISO 14096-2:2005 définit trois classes de qualité de numérisation de film en raison des exigences relatives aux essais non destructifs (END). Les classes sélectionnées dépendent de l'énergie de radiation, de l'épaisseur du matériau pénétré et du niveau de qualité de la radiographie originale. L'ISO 14096-2:2005 ne s'adresse pas au traitement du signal, à l'affichage et au stockage des données numérisées.

Neporušitvene preiskave - Kvalificiranje sistemov za digitaliziranje radiogramov - 2. del: Minimalne zahteve (ISO/DIS 14096-2:2025)

General Information

• Status: Not Published
• Publication Date: 24-Mar-2027
• ICS: 19.100 - Non-destructive testing
• ICS: 37.040.25 - Radiographic films
• Technical Committee: CEN/TC 138 - Non-destructive testing
• Drafting Committee: CEN/TC 138/WG 1 - Ionizing radiation testing
• Current Stage: 4060 - Closure of enquiry - Enquiry
• Start Date: 21-Nov-2025
• Completion Date: 21-Nov-2025
• Ref Project: oSIST prEN ISO 14096-2:2025 - Non-destructive testing - Qualification of radiographic film digitisation systems - Part 2: Minimum requirements (ISO/DIS 14096-2:2025)

Relations

• Revises: EN ISO 14096-2:2020 - Non-destructive testing - Qualification of radiographic film digitisation systems - Part 2: Minimum requirements (ISO 14096-2:2005)
• Effective Date: 19-Jul-2023

Overview

The prEN ISO 14096-2:2025 is a draft European standard developed by CEN, aligned with the international standard ISO/DIS 14096-2:2025. It defines the minimum requirements for qualification of radiographic film digitisation systems used in non-destructive testing (NDT). This standard establishes three distinct film-digitisation quality classes-DS, DB, and DA-tailored to different testing conditions such as radiation energy, material thickness, and original film quality. The goal is to ensure that digitisation maintains the image quality necessary for accurate industrial inspection, focusing on digitisation performance without covering subsequent signal processing, display, or data storage.

Key Topics

• Digitisation Quality Classes

  • Class DS: Enhanced technique with minimal reduction in signal-to-noise ratio and spatial resolution, ideal for digital archiving.
  • Class DB: Allows moderate image quality reduction, suited for digital analysis where original films are archived.
  • Class DA: Basic technique with more considerable quality reduction, also for digital analysis with archived originals.

• Film Digitisation Parameters

  • Density Range (Dᵣ): Defines the range of optical densities measurable by the digitiser; varies per quality class.
  • Density Contrast Sensitivity (ΔD_CS): Digitisers must resolve minimum density variations, with ΔD_CS ≤ 0.02 across all classes.
  • Basic Spatial Resolution (SR_b): Minimum spatial resolution values depend on radiation energy and class, ensuring image sharpness.
  • Digital Resolution: Specifies bit-depth requirements for analogue-to-digital conversion, with Class DS requiring ≥14 bits.

• Application-Dependent Requirements

  • The chosen digitisation quality class depends on radiation energy levels (X-ray or gamma-ray), testing material thickness, and film quality.
  • Higher energy radiography demands different minimum spatial resolution thresholds to accurately capture film details.

• Standard Terminology and Definitions
  The document provides clear definitions for critical terms such as pixel size, optical density, digitiser working ranges, and digital resolution, adhering to ISO/IEC ontology.

Applications

• Industrial Radiographic Testing
  The standard supports industries using X-ray and gamma-ray radiography for weld inspections, casting evaluation, and material flaw detection by defining consistent digitisation quality metrics.

• Digital Archiving
  Class DS systems are suitable for converting radiographic films into digital archives with insignificant quality loss, facilitating long-term data storage and retrieval.

• Digital Image Analysis
  Classes DB and DA enable the use of digitised radiographs for computational analysis and evaluation where original films remain preserved.

• Quality Assurance in NDT Processes
  Helps organizations select and validate digitisation systems that meet rigorous industrial requirements, fostering accurate defect detection and compliance with regulatory demands.

Related Standards

• ISO 14096-1: Definitions, quantitative measurement methods, and reference films for radiographic film digitisation.
• ISO 17636-1: Radiographic testing techniques using X- and gamma-rays on welds.
• EN 12681-1: Film techniques for radiographic examination in founding industries.
• ISO 19232-5: Image quality parameters for radiographs, including spatial resolution assessments using wire-type image quality indicators.
• ISO 5579: Basic rules for radiographic testing of metallic materials with film and radiation sources.

By harmonizing film digitisation standards, prEN ISO 14096-2:2025 ensures consistent, reliable digital representation of radiographic films critical to maintaining the integrity and accuracy of non-destructive testing results across industrial applications.

Standards Content (Sample)

SLOVENSKI STANDARD
01-november-2025
Neporušitvene preiskave - Kvalificiranje sistemov za digitaliziranje radiogramov -
2. del: Minimalne zahteve (ISO/DIS 14096-2:2025)
Non-destructive testing - Qualification of radiographic film digitisation systems - Part 2:
Minimum requirements (ISO/DIS 14096-2:2025)
Zerstörungsfreie Prüfung - Qualifizierung von Röntgenfilm-Digitalisierungssystemen -
Teil 2: Mindestanforderungen (ISO/DIS 14096-2:2025)
Essais non destructifs - Qualification des systèmes de numérisation des films
radiographiques - Partie 2: Exigences minimales (ISO/DIS 14096-2:2025)
Ta slovenski standard je istoveten z: prEN ISO 14096-2
ICS:
19.100 Neporušitveno preskušanje Non-destructive testing
37.040.25 Radiografski filmi Radiographic films
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

DRAFT
International
Standard
ISO/DIS 14096-2
ISO/TC 135/SC 5
Non-destructive testing —
Secretariat: DIN
Qualification of radiographic film
Voting begins on:
digitisation systems —
2025-08-29
Part 2:
Voting terminates on:
2025-11-21
Minimum requirements
Essais non destructifs — Qualification des systèmes de
numérisation des films radiographiques —
Partie 2: Exigences minimales
ICS: 37.040.25
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENTS AND APPROVAL. IT
IS THEREFORE SUBJECT TO CHANGE
AND MAY NOT BE REFERRED TO AS AN
INTERNATIONAL STANDARD UNTIL
PUBLISHED AS SUCH.
This document has not been edited by the ISO Central Secretariat.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
ISO/CEN PARALLEL PROCESSING
BE CONSIDERED IN THE LIGHT OF THEIR
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
NATIONAL REGULATIONS.
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 SUPPORTING DOCUMENTATION.
Reference number
ISO/DIS 14096-2:2025(en)
DRAFT
ISO/DIS 14096-2:2025(en)
International
Standard
ISO/DIS 14096-2
ISO/TC 135/SC 5
Non-destructive testing —
Secretariat: DIN
Qualification of radiographic film
Voting begins on:
digitisation systems —
Part 2:
Voting terminates on:
Minimum requirements
Essais non destructifs — Qualification des systèmes de
numérisation des films radiographiques —
Partie 2: Exigences minimales
ICS: 37.040.25
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENTS AND APPROVAL. IT
IS THEREFORE SUBJECT TO CHANGE
AND MAY NOT BE REFERRED TO AS AN
INTERNATIONAL STANDARD UNTIL
PUBLISHED AS SUCH.
This document has not been edited by the ISO Central Secretariat.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL,
© ISO 2025
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
STANDARDS MAY ON OCCASION HAVE TO
ISO/CEN PARALLEL PROCESSING
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
BE CONSIDERED IN THE LIGHT OF THEIR
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
or ISO’s member body in the country of the requester.
NATIONAL REGULATIONS.
ISO copyright office
RECIPIENTS OF THIS DRAFT ARE INVITED
CP 401 • Ch. de Blandonnet 8
TO SUBMIT, WITH THEIR COMMENTS,
CH-1214 Vernier, Geneva
NOTIFICATION OF ANY RELEVANT PATENT
Phone: [phone]
RIGHTS OF WHICH THEY ARE AWARE AND TO
PROVIDE SUPPORTING DOCUMENTATION.
Email: [e-mail]
Website: www.iso.org
Published in Switzerland Reference number
ISO/DIS 14096-2:2025(en)
ii
ISO/DIS 14096-2:2025(en)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Digitisation quality classes . . 3
5 Minimum requirements for digitisation quality classes . 3
5.1 Density range and working ranges of the radiographic film digitisation system .3
5.2 Minimum basic spatial resolution of radiographic film digitisation systems .4
5.3 Digitisation quality class depending on the radiographic testing class .4

iii
ISO/DIS 14096-2:2025(en)
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 documents should be noted. This document was drafted in accordance with the editorial rules of the
ISO/IEC Directives, Part 2 (see www.iso.org/directives).
ISO draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed patent
rights in respect thereof. As of the date of publication of this document, ISO had not received notice of
patents which may be required to implement this document. However, implementers are cautioned that
this may not represent the latest information, which may be obtained from the patent database available at
www.iso.org/patents. ISO shall not be held responsible for identifying any or all such patent rights.
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and expressions
related to conformity assessment, as well as information about ISO's adherence to the World Trade
Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 135, Non-destructive testing, Subcommittee
SC 5, Radiation methods.
This second edition cancels and replaces the first edition (ISO 14096-2:2005), which has been technically
revised.
The main changes are as follows:
— definitions of terms 3.4 and 3.5 updated;
— definitions of terms “spatial frequency” and “modulation transfer function” removed;
— in clause 3.4, definition of term “basic spatial resolution” added;
— values in Table 1, Table 2 and Table 3 updated;
— editorial updated.
A list of all parts in the ISO 14096 series can be found on the ISO website.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.

iv
ISO/DIS 14096-2:2025(en)
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 document defines minimum requirements to ensure
that the relevant information for evaluation of the digital data is preserved during the film digitisation
process.
v
DRAFT International Standard ISO/DIS 14096-2:2025(en)
Non-destructive testing — Qualification of radiographic fi
...