UFGS 23 21 13.23 20 [High] [Medium] Temperature Water System Within Buildings  

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
Nov-2019 N C 1

Incorporated dispersal of criteria from the retired UFC 3-440-05N TROPICAL ENGINEERING, and the addition of corrosion protection criteria to coordinate with UFC 1-200-01 DoD BUILDING CODE.

Jul-2007 N R

Modified for non-asbestos use.