标准摘要
[中文适用范围]： 本部分ISO 2470规定了一种测量纸浆、纸张和纸板的散射蓝反射率因子（ISO亮度）的方法。本部分仅限于白色或近白色的纸浆、纸张和纸板，并且测量只能在仪器中进行，该仪器的紫外线能量水平已调整以对应CIE光源A [6]。由于它含有适量的紫外辐射，CIE光源A被认为是室内日光条件下紫外线含量的代表。 [外文原描述]： ISO 2470-1:2016 specifies a method for measuring the diffuse blue reflectance factor (ISO brightness) of pulps, papers and boards. ISO 2470-1:2016 is limited in its scope to white and near-white pulps, papers and boards. The measurement can only be made in an instrument in which the ultraviolet energy level of the illumination has been adjusted to correspond to the CIE illuminant C[6] using a fluorescent reference standard. The CIE illuminant C is taken to be representative of indoor daylight conditions because it contains a suitable proportion of UV radiation.[9]
英文名称Paper, board and pulps — Measurement of diffuse blue reflectance factor — Part 1: Indoor daylight conditions (ISO brightness)