标准编号：ISO 5631-2:2014
中文名称：纸和纸板 漫反射法测定颜色 第2部分：室外日光条件下（D65/10°）
英文名称：Paper and board — Determination of colour by diffuse reflectance — Part 2: Outdoor daylight conditions (D65/10 degrees)
发布日期：2014-07
标准范围
This part of ISO 5631 specifies a method for measuring the colour of paper and board by the diffusereflectance method with the elimination of specular gloss.It can be used to determine the colour of papers or boards that contain fluorescent whitening agents,provided the UV content of the illumination on the test piece has been previously adjusted to give thecalibrated colourimetric value corresponding to CIE standard illuminant D65, using a fluorescentreference standard with an assigned CIE whiteness (D65/10°) value provided by an authorizedlaboratory, as described in ISO 11475.This part of ISO 5631 is not applicable to coloured papers or boards that incorporate fluorescent dyesor pigments.
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