UFGS 22 31 00 Water Softeners, Cation-Exchange (Sodium Cycle)  

History: Below is a listing of the Revisions and Changes made to this UFGS.

KEY PREPARING ACTIVITY (PA) A Army N Navy F Air Force S NASA
ACTION N New R Revision C Change D Deletion
Release PA Action Change # Nature of Change or Revision
Feb-2009 A R

Compliance with CSI SectionFormat