Over deze norm
Specifies a method for measuring the diffuse blue reflectance factor (ISO brightness) of pulps, papers and boards. This standard is limited in its scope to white and near-white pulps, papers 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 using a fluorescent calibration standard if standardization and agreement between instruments is to be achieved.
|Nederlandse titel||Papier, karton en celstof - Meting van de diffuse blauwe reflectiefactor (ISO-helderheid)|
|Engelse titel||Paper, board and pulps - Measurement of diffuse blue reflectance factor (ISO brightness)|