ASTM-E1423 Complete Document History
Standard Practice for Determining Steady State Thermal Transmittance of Fenestration Systems

Complete Current Edition:
   2021 EDITION - Thermal Transmittance of Fenestration Systems - Aug. 19, 2021

Obsolete Revision Information:
   2014 EDITION - Determining Steady State Thermal Transmittance of Fenestration Systems - May 15, 2014
   1999 EDITION - Determining Steady State Thermal Transmittance of Fenestrati - Oct. 10, 1999
   1991 EDITION - Determining Steady State Thermal Transmittance of Fenestrati - Sept. 27, 1991