UL-668 Complete Document History
Standard for Hose Valves for Fire-Protection Service

Complete Current Edition:
   10TH EDITION - Standard for Hose Valves for Fire-Protection Service - April 28, 2004
   CHANGE 08/08 - REVISION CHANGE - CODE A - Aug. 28, 2008
   CHANGE 12/12 - REVISION CHANGE - CODE A - Dec. 18, 2012
   CHANGE 07/16 - REVISION CHANGE - CODE A - July 12, 2016

Obsolete Revision Information:
   9TH EDITION - Standard for Hose Valves for Fire-Protection Service - Dec. 28, 1995
   1989 EDITION - Standard for Hose Valves for Fire-Protection Service - Jan. 1, 1989