ASTM-E1926 › Complete Document History
Standard Practice for Computing International Roughness Index of Roads from Longitudinal Profile Measurements

Complete Current Edition:
   2008 R21 EDITION - REAPPROVED IN 2021 - Feb. 10, 2021

Obsolete Revision Information:
   2008 R15 EDITION - REAPPROVED IN 2015 - July 15, 2015
   2008 EDITION - Computing International Roughness Index of Roads from Longit - June 1, 2008
   1998 R03 EDITION - REAPPROVED IN 2003 - Dec. 1, 2003
   1998 EDITION - Computing International Roughness Index of Roads from Longit - Jan. 10, 1998