GSO ISO 9848:2015
摄影 源文档的缩微胶卷 ISO 速度和 ISO 色域的估计

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

GSO ISO 9848:2015 发布历史

GSO ISO 9848:2015由GSO 发布于 2015-09-03。

GSO ISO 9848:2015在国际标准分类中归属于: 37.040.20 相纸、胶卷和暗盒。

GSO ISO 9848:2015 摄影 源文档的缩微胶卷 ISO 速度和 ISO 色域的估计的最新版本是哪一版？

最新版本是 GSO ISO 9848:2015 。

GSO ISO 9848:2015的历代版本如下：

• 2015年 GSO ISO 9848:2015 摄影 源文档的缩微胶卷 ISO 速度和 ISO 色域的估计

This International Standard 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 International Standard is only useful to the consumer if his exposure illumination is from an incandescent tungsten source as described in 5.3.3. 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 International Standard are intended for practical use in comparing film/process combinations and for computing exposures.

标准号

GSO ISO 9848:2015

发布

2015年

发布单位

GSO

当前最新

GSO ISO 9848:2015

 

 

GSO ISO 9848:2015相似标准