ASTM-D6727 Complete Document History
Standard Guide for Conducting Borehole Geophysical Logging—Neutron

Complete Current Edition:
   2016 EDITION - Standard Guide for Conducting Borehole Geophysical Logging - - Jan. 15, 2016

Obsolete Revision Information:
   2001 R07 EDITION - REAPPROVED IN 2007 - July 1, 2007
   2001 EDITION - CONDUCTING BOREHOLE GEOPHYSICA - Nov. 10, 2001