TAPPI-T425 Complete Document History
Opacity of Paper (15/D Geometry, Illuminant a/2 Degrees, 89% Reflectance Backing & Pap

Complete Current Edition:
   2021 EDITION - Opacity of paper (15/d geometry, illuminant A/2 degrees, 89% reflectance backing and paper backing) - Jan. 1, 2016

Obsolete Revision Information:
   2016 EDITION - Opacity of paper (15/d geometry, illuminant A/2 degrees, 89% reflectance backing and paper backing) - Jan. 1, 2016
   2011 EDITION - Opacity of paper (15/d geometry, illuminant A/2 degrees, 89% reflectance backing and paper backing) - Jan. 1, 2011
   2006 EDITION - OPACITY OF PAPER (15/D GEOMETRY, ILLUMINANT A/2 DEGREES, 89% - Jan. 1, 2006
   2001 EDITION - OPACITY OF PAPER (15/D GEOMETR - Jan. 1, 2001