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ISO 9848:1993

Photography — Source document microfilms — Determination of ISO speed and ISO average gradient

Standard Details

The method of determination specified is based on exposing and processing samples, measuring density from the resultant images to produce a sensitometric curve from which values are taken and used to determine ISO speed and ISO average gradient. Applies to black-and-white camera negative photographic films used for first generation microfilming of source documents at exposure times typically found with tungsten sources.

General Information

Status : WITHDRAWN
Standard Type: Main
Document No: ISO 9848:1993
Document Year: 1993
Pages: 7
Edition: 1
  • ICS:
  • 37.040.20 Photographic paper, films and plates. Cartridges
  • 37.080 Document imaging applications

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WITHDRAWN
ISO 9848:1993
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