UL-2431 Complete Document History
Standard for Durability of Spray-Applied Fire Resistive Materials

Complete Current Edition:
   2ND EDITION - Standard for Durability of Spray-Applied Fire Resistive Mate - Oct. 15, 2014
   CHANGE 05/19 - REVISION CHANGE - CODE B - May 2, 2019

Obsolete Revision Information:
   CHANGE 04/12 - REVISION CHANGE - CODE B - April 24, 2012
   1ST EDITION - Standard for Durability of Spray-Applied Fire Resistive Mate - Aug. 17, 2007