ASTM-C22 Complete Document History
Standard Specification for Gypsum

Complete Current Edition:
   2000 R21 EDITION - REAPPROVED IN 2021 - May 7, 2021

Obsolete Revision Information:
   2000 R15 EDITION - REAPPROVED IN 2015 - Oct. 1, 2015
   2000 R10 EDITION - REAPPROVED IN 2010 - Nov. 1, 2010
   2000 R05(E1) EDITION - EDITORIALLY CORRECTED - Oct. 1, 2005
   2000 EDITION - Standard Specification for Gypsum - May 10, 2000
   1996 EDITION - Standard Specification for Gypsum - May 10, 1996
   1996(E1) EDITION - PARAGRAPH 4.1 CORRECTED - May 10, 1996
   1995A EDITION - Standard Specification for Gypsum - Nov. 10, 1995
   1995 EDITION - Standard Specification for Gypsum - July 15, 1995
   1991 EDITION - Standard Specification for Gypsum - March 15, 1991
   1990 EDITION - Standard Specification for Gypsum - Feb. 23, 1990
   1983 EDITION - Standard Specification for Gypsum - Aug. 26, 1983