TAPPI-T491 Complete Document History
Water Immersion Number of Paperboard

Complete Current Edition:
   2008 R23 EDITION - REAFFIRMED IN 2023 - June 30, 2023

Obsolete Revision Information:
   2008 R18 EDITION - REAFFIRMED IN 2018 - Jan. 1, 2018
   2013 EDITION - Water Immersion Number of Paperboard - Jan. 1, 2013
   2008 EDITION - Water Immersion Number of Paperboard - Jan. 1, 2008
   2004 EDITION - WATER IMMERSION TEST OF PAPERB - Jan. 1, 2004
   1999 EDITION - WATER IMMERSION TEST OF PAPERB - Jan. 1, 1999