ASTM-C155 Complete Document History
Standard Classification of Insulating Firebrick

Complete Current Edition:
   1997 R22 EDITION - REAPPROVED IN 2022 - Sept. 27, 2022

Obsolete Revision Information:
   1997 R18 EDITION - REAPPROVED IN 2018 - Oct. 1, 2018
   1997 R13 EDITION - REAPPROVED IN 2013 - Sept. 15, 2013
   1997 R07 EDITION - REAPPROVED IN 2007 - April 1, 2007
   1997 R02 EDITION - REAPPROVED IN 2002 - Dec. 1, 2002
   1997 EDITION - Standard Classification of Insulating Firebrick - Feb. 10, 1997
   1988 R92(E1) EDITION - EDITORIALLY CORRECTED - Jan. 1, 1993
   1988 EDITION - Standard Classification of Insulating Firebrick - Dec. 30, 1988