BS ISO 2470:1999被替代
Paper, board and pulps. Measurement of diffuse blue reflectance factor (ISO brightness)
出版：British Standards Institution
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基本信息
标准编号： BS ISO 2470:1999
发布时间：2000/2/15 0:00:00
标准类别：Standard
出版单位：British Standards Institution
标准页数：16
标准简介
Gives a method for measuring the diffuse blue reflectance factor (ISO brightness) of papers, pulps and boards. It is limited to white and near-white papers, pulps and boards. Materials exhibiting fluorescence which promotes the appearance of whiteness may be measured but the ultraviolet energy level of the illumination must be adjusted with a fluorescent calibration standard if standardization and agreement between instruments is to be achieved.
标准备注
© British Standards Institution 2013
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