ASTM-E1221 Complete Document History
Standard Test Method for Determining Plane-Strain Crack-Arrest Fracture Toughness, KIa, of Ferritic Steels

Complete Current Edition:
   2023 EDITION - Standard Test Method for Determining Plane-Strain Crack-Arrest Fracture Toughness, KIa, of Ferritic Steels - Dec. 6, 2023

Obsolete Revision Information:
   2012A R18(E1) EDITION - EDITORIALLY CORRECTED - May 15, 2020
   2012A R18 EDITION - REAPPROVED IN 2018 - Dec. 15, 2018
   2012A EDITION - Determining Plane-Strain Crack-Arrest Fracture Toughness, KI - May 15, 2013
   2012 EDITION - Determining Plane-Strain Crack-Arrest Fracture Toughness, KI - July 31, 2012
   2010 EDITION - Determining Plane-Strain Crack-Arrest Fracture Toughness, KI - Nov. 1, 2010
   2006 EDITION - Determining Plane-Strain Crack-Arrest Fracture Toughness, KI - Jan. 15, 2006
   1996 R02 EDITION - REAPPROVED IN 2002 - June 10, 1996
   1996 EDITION - Determining Plane-Strain Crack-Arrest Fracture Toughness, KI - June 10, 1996
   1988 EDITION - Determining Plane-Strain Crack-Arrest Fracture Toughness, KI - Feb. 1, 1988