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Photography — Source document microfilms — Determination of ISO speed and ISO average gradient
Automatically translated name:
Photography -- Source document microfilms -- Determination of ISO speed and ISO average gradient
STANDARD published on 19.11.2003
Designation standards: ISO 9848:2003-ed.2.0
Publication date standards: 19.11.2003
SKU: NS-437328
The number of pages: 9
Approximate weight : 27 g (0.06 lbs)
Country: International technical standard
Category: Technical standards ISO
Photographic paper, films and cartridgesDocument imaging applications
Description / 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.
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