ASTM-D4781 › Complete Document History
Standard Test Method for Mechanically Tapped Packing Density of Fine Catalyst Particles and Catalyst Carrier Particles

Complete Current Edition:
   2003 R18(E1) EDITION - EDITORIALLY CORRECTED - May 1, 2018

Obsolete Revision Information:
   2003 R13 EDITION - REAPPROVED IN 2013 - March 15, 2013
   2003 R08 EDITION - REAPPROVED IN 2008 - April 1, 2008
   2003 EDITION - MECHANICALLY TAPPED PACKING DE - Oct. 1, 2003
   1999 EDITION - MECHANICALLY TAPPED PACKING DE - Oct. 10, 1999
   1994 EDITION - MECHANICALLY TAPPED PACKING DE - Jan. 15, 1994
   1988 EDITION - MECHANICALLY TAPPED PACKING DE - Aug. 26, 1988