EN ISO 14096-1:2020 PDF

Overview

EN ISO 14096-1:2020 - "Non-destructive testing - Qualification of radiographic film digitisation systems - Part 1" defines terms and procedures for evaluating the basic performance of radiographic film digitisation systems used in industrial NDT (non-destructive testing). The standard prescribes quantitative measurements of image quality parameters and specifies a standard reference film with test targets for routine qualitative control. It is intended to ensure that digitisation preserves the diagnostic information from X‑ and gamma‑ray radiographic films for analysis, storage and transmission. Note: this part does not cover signal processing or display of digitised data.

Key topics

• Image quality parameters and how to measure them, including:
  • Spatial resolution and spatial linearity (suitable down to 25 µm)
  • Digitiser unsharpness and edge spread function (ESF)
  • Modulation transfer function (MTF) as a measure of contrast transmission vs. object size
  • Density range (specified range 0.5 to 4.5 optical density)
  • Density contrast sensitivity (down to 0.02 optical density)
  • Characteristic transfer curve (CTC) relating film optical density to digital values
  • Digital resolution (bits), density sampling pitch and density contrast sensitivity
• Standard reference film: a photographic image containing prescribed test targets (for film sizes up to 350 × 430 mm²) used to evaluate and control digitiser performance.
• Evaluation procedures: defined methodologies that can be integrated into digitiser software for routine quality control and long‑term stability monitoring.
• Scope limits: applies to geometrical/densitometrical digitisation; does not address post‑acquisition signal processing or display.

Applications

• Quality assurance and acceptance testing of film digitisation systems in industrial radiography labs.
• Specification and validation of digitiser performance by manufacturers and suppliers of NDT digitisation equipment.
• Routine calibration and long‑term stability checks in facilities that digitise radiographic films for archival, remote review, automated image analysis, or regulatory compliance.
• Use by NDT engineers, radiographers, QA managers, inspectors and technical procurement teams specifying digitisation systems.

Related standards

• EN ISO 14096-2: Minimum requirements for radiographic film digitisation systems (companion standard)
• EN 584-1: Industrial radiographic film classification (normative reference)
• Developed under ISO/TC 135 (Non‑destructive testing) and adopted by CEN/TC 138.

Keywords: EN ISO 14096-1:2020, radiographic film digitisation, non‑destructive testing, NDT, image quality, standard reference film, spatial resolution, density contrast sensitivity, MTF, digitiser, quality control.