ASTM-E1121 › Complete Document History
Standard Practice for Measuring Payback for Investments in Buildings and Building Systems

Complete Current Edition:
   2015 R20(E1) EDITION - EDITORIALLY CORRECTED - May 5, 2020

Obsolete Revision Information:
   2015 EDITION - Measuring Payback for Investments in Buildings and Building Systems - Oct. 15, 2015
   2012 EDITION - Measuring Payback for Investments in Buildings and Building - April 30, 2012
   2007(E1) EDITION - EDITORIALLY CORRECTED - Jan. 1, 2009
   2007 EDITION - Measuring Payback for Investments in Buildings and Building - April 1, 2007
   2002 EDITION - Measuring Payback for Investments in Buildings and Building - Oct. 10, 2002
   1998 EDITION - Measuring Payback for Investments in Buildings and Building - Sept. 10, 1998
   1986 EDITION - Measuring Payback for Investments in Buildings and Building - July 25, 1986