ASTM-D6452 › Complete Document History
Standard Guide for Purging Methods for Wells Used for Ground Water Quality Investigations

Complete Current Edition:
   2018 R23 EDITION - REAPPROVED IN 2023 - Nov. 14, 2023

Obsolete Revision Information:
   2018 EDITION - Purging Methods for Wells Used for Groundwater Quality Investigations - Dec. 1, 2018
   1999 R12(E1) EDITION - REAPPROVED IN 2012, EDITORIALLY CORRECTED - Dec. 1, 2012
   1999 R05 EDITION - REAPPROVED IN 2005 - Feb. 1, 2005
   1999 EDITION - PURGING METHODS FOR WELLS USED - July 10, 1999