ISO 6846:1992
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ISO 6846:1992
13355

Status : Published (Under review)

This standard was last reviewed and confirmed in 2020. Therefore this version remains current.
en
Format Language
std 1 63 PDF
std 2 63 Paper
  • CHF63
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Abstract

Pertains to all conventional silver-halide contact and enlarging papers used for continuous-tone or pictorial photography. The method is based on exposing and processing samples, performing density measurements from the resultant image to produce a sensitometric curve from which measurements are taken and used to determine ISO speed and ISO range values. Annexes A to C deal with the relationships between the paper range and the effective density range of the negative, log exposure range and contrast, and log exposure range and average gradient.

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General information

  •  : Published
     : 1992-12
    : International Standard confirmed [90.93]
  •  : 2
     : 9
  • ISO/TC 42
    37.040.20 
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Life cycle

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