Methods of test for pulp and paper, Method 555: Determination of CIE whiteness, C/2° (indoor illumination conditions)
纸浆和纸张的试验方法 方法555:CIE白度的测定 C/2°(室内照明条件)
Adopts ISO 11476:2016 to specify the procedure to be used for determining the CIE whiteness of papers and boards, in order to obtain values which correspond to the visual appearance of white papers and boards, with or without fluorescent whitening agents, when they are viewed indoors.