ASTM-C656 Complete Document History
Standard Specification for Structural Insulating Board, Calcium Silicate

Complete Current Edition:
   2017 R23 EDITION - REAFFIRMED IN 2023 - March 30, 2023

Obsolete Revision Information:
   2017 EDITION - Structural Insulating Board, Calcium Silicate - Oct. 15, 2017
   2007 R13 EDITION - REAPPROVED IN 2013 - March 15, 2013
   2007 EDITION - Structural Insulating Board, Calcium Silicate - Sept. 1, 2007
   1994A EDITION - Structural Insulating Board, Calcium Silicate - July 15, 1994
   1994 R01 EDITION - REAPPROVED IN 2001 - July 15, 1994
   1994 EDITION - Structural Insulating Board, Calcium Silicate - Jan. 15, 1994
   1992A EDITION - Structural Insulating Board, Calcium Silicate - Aug. 15, 1992
   1992 EDITION - Structural Insulating Board, Calcium Silicate - Feb. 15, 1992
   1991 EDITION - Structural Insulating Board, Calcium Silicate - Feb. 14, 1991
   1979A EDITION - Structural Insulating Board, Calcium Silicate - Aug. 31, 1979