ISO 11475:2004 纸和纸板 D65/10°（室外日光）下CIE白度的测定

标准编号：ISO 11475:2004

中文名称：纸和纸板 D65/10°（室外日光）下CIE白度的测定

英文名称：Paper and board — Determination of CIE whiteness, D65/10 degrees (outdoor daylight)

发布日期：2004-11

标准范围

ISO 11475:2004规定了用于测定纸张和纸板白度的程序。当在CIE D65日光光源下观看时，获得的值对应于带有或不带荧光增白剂的白纸和白板的视觉外观。它基于在整个可见光谱范围（VIS）内获得的反射率数据，而ISO亮度的测量仅限于VIS的蓝色区域。此外，它还规定了调整UV含量的方法，以对应于D65日光光源，只要存在荧光增白剂时获得的结果取决于UV-落在样品上的辐射含量。它专门用于光谱蓝色区域的荧光测量。此方法不适用于含有荧光染料的彩色纸张。应结合ISO 2469进行阅读。

ISO 11475:2004 specifies the procedure to be used for determining the whiteness of papers and boards. The values obtained correspond to the visual appearance of white papers and boards with or without fluorescent whitening agents when they are viewed under the CIE D65 daylight illuminant. It is based on reflectance data obtained over the full visible spectral range (VIS) in contrast to the measurement of ISO brightness which is limited to the blue region of VIS.In addition, it specifies a method for adjustment of the UV-content to correspond to the D65 daylight illuminant, insofar as results obtained when fluorescent whitening agents are present are dependent upon the UV-content of the radiation falling upon the sample. It is specific for the measurement of fluorescence in the blue region of the spectrum.This method is not applicable to coloured papers containing fluorescent dyes.It should be read in conjunction with ISO 2469.

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