NEN ISO 9848 : 2003
Current
Current
The latest, up-to-date edition.
PHOTOGRAPHY - SOURCE DOCUMENT MICROFILMS - DETERMINATION OF ISO SPEED AND ISO AVERAGE GRADIENT
Published date
12-01-2013
Publisher
Defines 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.
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