ASTM-E974 Complete Document History
Standard Guide for Specifying Thermal Performance of Geothermal Power Systems (Withdrawn 2015)

Complete Current Edition:
   2021 EDITION - Thermal Performance of Geothermal Power Systems - April 21, 2021

Obsolete Revision Information:
   WITHDRAWN - WITHDRAWN IN 2015 - Jan. 15, 2015
   2000 R06 EDITION - REAPPROVED IN 2006 - March 1, 2006
   2000 EDITION - SPECIFYING THERMAL PERFORMANCE - Oct. 10, 2000
   1997 EDITION - SPECIFYING THERMAL PERFORMANCE - Oct. 10, 1997
   1983 R95(E1) EDITION - SPECIFYING THERMAL PERFORMANCE - Oct. 1, 1995
   1983 EDITION - SPECIFYING THERMAL PERFORMANCE - Nov. 28, 1983