ASTM-A922 › Complete Document History
Standard Specification for Silicon Metal

Complete Current Edition:
   2005 R20 EDITION - REAPROVED IN 2020 - March 1, 2020

Obsolete Revision Information:
   2005 R15 EDITION - REAPPROVED IN 2015 - Nov. 15, 2015
   2005 R10 EDITION - REAPPROVED IN 2010 - May 1, 2010
   2005 EDITION - Standard Specification for Silicon Metal - May 1, 2005
   1993 R04 EDITION - REAPPROVED IN 2004 - Oct. 1, 2004
   1993 EDITION - Standard Specification for Silicon Metal - Dec. 15, 1993
   1993 R00 EDITION - REAPPROVED IN 2000 - Dec. 15, 1993