ASTM-D5255 › Complete Document History
Standard Practice for Certification of Personnel Engaged in the Testing of Soil and Rock

Complete Current Edition:
   2015 R23 EDITION - REAPPROVED IN 2023 - Nov. 6, 2023

Obsolete Revision Information:
   2015 EDITION - Certification of Personnel Engaged in the Testing of Soil and Rock - June 15, 2015
   2014 EDITION - Standard Practice for Certification of Personnel Engaged in - Sept. 15, 2014
   2001 R08 EDITION - REAPPROVED IN 2008 - July 1, 2008
   2001 EDITION - CERTIFICATION OF PERSONNEL ENGAGED IN THE TESTING OF SOIL AND - Jan. 10, 2001
   1997(E1) EDITION - PARAGRAPH 1.5 WAS ADDED - Oct. 1, 1998
   1996 EDITION - CERTIFICATION OF PERSONNEL ENG - May 10, 1997
   1992 EDITION - CERTIFICATION OF PERSONNEL ENG - July 31, 1992