NF EN 462-4

NF EN 462-4

December 1994
Standard Cancelled

Non destructive testing. Image quality of radiographs. Part 4 : experimental evaluation of image quality values and image quality tables.

Le présent document donne les instructions nécessaires pour déterminer les indices de qualité d'image et les classes COL.

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Main informations

Collections

National standards and national normative documents

Publication date

December 1994

Number of pages

7 p.

Reference

NF EN 462-4

ICS Codes

19.100   Non-destructive testing

Classification index

A09-205-4

Print number

1 - 01/12/1994

European kinship

EN 462-4:1994
Sumary
Non destructive testing. Image quality of radiographs. Part 4 : experimental evaluation of image quality values and image quality tables.

Le présent document donne les instructions nécessaires pour déterminer les indices de qualité d'image et les classes COL.
Standard replaced by (1)
NF EN ISO 19232-4
August 2013
Standard Current
Non-destructive testing - Image quality of radiographs - Part 4 : experimental evaluation of image quality values and image quality tables

ISO 19232-4:2013 gives instructions for the determination of image quality values and image quality tables. If the IQI requirements specified in ISO 19232‑3 cannot be used because, for example, the absorption coefficients of the IQI material and the inspected material differ by more than 30 %, test exposures are necessary to determine acceptance of image quality values. The image quality values achieved by the test exposures are required for all exposures made under the same radiographic conditions.

Table of contents
  • Avant-propos
    3
  • 1
    Domaine d'application 4
  • 2
    Références normatives 4
  • 3
    Définitions 4
  • 4
    Évaluation expérimentale des indices de qualité d'image 5
  • 5
    Détermination des tables de qualité d'image 5
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