ISO 7004:2002
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Photography -- Industrial radiographic films -- Determination of ISO speed, ISO average gradient and ISO gradients G2 and G4 when exposed to X- and gamma-radiation

This standard was last reviewed* in 2011.

*ISO standards are reviewed every five years.


ISO 7004:2002 specifies methods for determining sensitometric curve shape, ISO speed, ISO average gradient and ISO gradients G2 and G4 for industrial radiographic systems consisting of film and film processing when exposed directly to X-rays and gamma-rays. The measurement of characteristics of film systems used in industrial radiography with fluorescent intensifying screens is not specified in this International Standard.


  • Document published on: 2002-10-01
    Edition: 2 (Monolingual) ICS: 37.040.25
    Status: Published Stage: 90.93 (2011-10-03)
    TC/SC: ISO/TC 42 Number of Pages: 18
  • Revises: ISO 7004:1987

  • No corrigenda or amendments available

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