International Standard
ISO 9848:2003
Photography — Source document microfilms — Determination of ISO speed and ISO average gradient
Reference number
ISO 9848:2003
Edition 2
2003-12
International Standard
Read sample
ISO 9848:2003
34534
Published (Edition 2, 2003)
This standard was last reviewed and confirmed in 2020. Therefore this version remains current.

ISO 9848:2003

ISO 9848:2003
34534
Language
Format
CHF 63
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Abstract

ISO 9848:2003 specifies a method for determining the ISO speed and ISO average gradient of black-and-white camera negative photographic films used for first generation microfilming of source documents at exposure times typically found with tungsten sources. These source documents include any handwritten or printed alphanumeric and line documents such as books, periodicals, business correspondence, and engineering drawings. The value-rating system described in this ISO 9848:2003 is only useful to the consumer if his exposure illumination is from an incandescent tungsten source. It is not intended to include pictorial or continuous tone reproduction, computer output microfilm (COM), reversal processed or direct positive films or other films exposed by non-tungsten sources such as laser or cathode ray tube.

The ISO speed and ISO average gradient values obtained by applying this ISO 9848:2003 are intended for practical use in comparing film/process combinations and for computing exposures.

General information

  •  : Published
     : 2003-12
    : International Standard confirmed [90.93]
  •  : 2
     : 9
  • ISO/TC 42
    37.080  37.040.20 
  • RSS updates

Life cycle

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