ASTM-B693 › Complete Document History
Standard Specification for Silver-Nickel Electrical Contact Materials

Complete Current Edition:
   2017 R22 EDITION - REAPPROVED IN 2022 - April 27, 2022

Obsolete Revision Information:
   2017 EDITION - Silver-Nickel Electrical Contact Materials - Dec. 15, 2017
   1991 R12 EDITION - REAPPROVED IN 2012 - May 31, 2012
   1991 R06 EDITION - REAPPROVED IN 2006 - June 1, 2006
   1991 R96(E1) EDITION - SECTION 14 ADDED EDITORIALLY - May 1, 1996
   1991 R01 EDITION - REAPPROVED IN 2001 - Aug. 15, 1991
   1991 EDITION - Silver-Nickel Electrical Contact Materials - Aug. 15, 1991
   1987 EDITION - Silver-Nickel Electrical Contact Materials - Dec. 31, 1987