Abstract 

ISO 22891:2007 specifies a method for the calculation of transmittance based upon diffuse reflectance measurements.

The use of the method is restricted to white and near-white translucent papers. If it is necessary to determine the transmittance of papers which contain fluorescent whitening agents, the fluorescence emission is eliminated using the prescribed UV cut-off filter.


General information

  • Status :  Withdrawn
    Publication date : 2007-07
  • Edition : 1
    Number of pages : 9
  • :
    ISO/TC 6
    Paper, board and pulps
  • 85.060
    Paper and board

Got a question?

Check out our FAQs

Customer care
+41 22 749 08 88

Opening hours:
Monday to Friday - 09:00-12:00, 14:00-17:00 (UTC+1)

Keep up to date with ISO

Sign up to our newsletter for the latest news, views and product information