ASTM-D4972 › Complete Document History
Standard Test Methods for pH of Soils

Complete Current Edition:
   2019 EDITION - Standard Test Methods for pH of Soils - May 1, 2019

Obsolete Revision Information:
   2018 EDITION - pH of Soils - July 1, 2018
   2013 EDITION - pH of Soils - Feb. 15, 2014
   2001 R07 EDITION - REAPPROVED IN 2007 - Sept. 1, 2007
   2001 EDITION - Standard Test Method for pH of Soils - Jan. 10, 2001
   1995A EDITION - Standard Test Method for pH of Soils - July 15, 1995
   1989 EDITION - Standard Test Method for pH of Soils - Nov. 10, 1989